Quantitative evaluation method and device for new energy consumption capability of electric energy replacing load

Abstract

The invention discloses a quantitative evaluation method and device for new energy consumption capability of a load replaced by electric energy. The method comprises the steps that power grid operation data of a power system of a preset area is acquired, the power grid operation data at least comprises load data, power supply data and tie line data, the load data comprises first load data and second load data, and the power grid operation data is used for evaluating the new energy consumption capability of the power system; based on a preset time period, the load data, the power supply data and the tie line data, obtaining a first abandoned electricity quantity of the power system, and based on the preset time period, the second load data, the power supply data and the tie line data, obtaining a second abandoned electricity quantity of the power system; and based on the first abandoned electricity quantity and the second abandoned electricity quantity, obtaining a quantitative evaluation result of the new energy consumption capability of the electric energy replacement load of the power system of the preset area. According to the invention, a technical problem that it is difficult to quantitatively evaluate the new energy consumption capability of the electric energy replacement load in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of power systems, and in particular to a method and device for quantitatively evaluating the new energy consumption capacity of replacing loads with electric energy. Background Art

[0002] With the transformation of the global energy structure and the urgency of climate change, renewable energy, such as wind and solar energy, is increasingly becoming an important part of the power system. However, the intermittent and uncertain nature of renewable energy poses challenges to the stable operation and power balance of the power system. In order to make full use of renewable energy and reduce dependence on fossil fuels, electric energy substitution has become a key strategy to promote low-carbon energy transformation.

[0003] In order to evaluate the impact of electric energy substitution on the renewable energy absorption capacity, the evaluation methods in related technologies mainly include typical day analysis method and random production simulation method. However, these evaluation methods do not fully consider the role of electric energy substitution load, resulting in the inability to accurately quantify the new energy absorption capacity of electric energy substitution load.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a method and device for quantitatively evaluating the new energy consumption capacity of electric energy replacement loads, so as to at least solve the technical problem that the related technology is difficult to quantitatively evaluate the new energy consumption capacity of electric energy replacement loads.

[0006] According to one aspect of an embodiment of the present invention, a quantitative evaluation method for a new energy consumption capacity of an electric energy substitution load is provided, comprising: obtaining grid operation data of a power system in a preset area, wherein the grid operation data at least comprises: load data, power supply data and tie line data, the load data comprises: first load data and second load data, the first load data is load data of the electric energy substitution load of the power system, and the second load data is load data other than the first load data, and the grid operation data is used to evaluate the new energy consumption capacity of the power system; obtaining a first amount of abandoned electricity of the power system based on a preset time period, load data, power supply data and tie line data, and obtaining a second amount of abandoned electricity of the power system based on a preset time period, second load data, power supply data and tie line data, wherein the first amount of abandoned electricity is the total amount of abandoned electricity of the new energy of the power system, and the second amount of abandoned electricity is the amount of abandoned electricity of the new energy of the power system after removing the electric energy substitution load; obtaining a quantitative evaluation result of the new energy consumption capacity of the electric energy substitution load of the power system in the preset area based on the first amount of abandoned electricity and the second amount of abandoned electricity, wherein the quantitative evaluation result is used to characterize that within the preset time period, the electric energy substitution load has a gain value of an increasing effect or a reduction value of a reducing effect on the new energy in the preset area.

[0007] Furthermore, a first amount of power abandonment in the power system is obtained based on a preset time period, load data, power supply data and tie-line data, and a second amount of power abandonment in the power system is obtained based on a preset time period, second load data, power supply data and tie-line data, including: constructing a first constraint condition for the power system based on the load data, power supply data and tie-line data, and constructing a second constraint condition for the power system based on the second load data, power supply data and tie-line data; obtaining the first amount of power abandonment in the power system based on the preset time period, load data, power supply data, tie-line data and the first constraint condition, and obtaining the second amount of power abandonment in the power system based on the preset time period, second load data, power supply data, tie-line data and the second constraint condition.

[0008] Furthermore, the power supply data at least includes: the output, maximum output and minimum output of the units of the power system, the climbing rate of the units of the power system, and the wind power output and photovoltaic output of the power system, and the interconnection line data at least includes: the upper limit value and the lower limit value of the transmission capacity of the interconnection line; the first constraint condition of the power system is constructed based on the load data, the power supply data and the interconnection line data, and the second constraint condition of the power system is constructed based on the second load data, the power supply data and the interconnection line data, including: based on the output of the conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, and the extraction of the power system The first power balance constraint of the power system is constructed based on the output of the hydropower storage unit, the power of the interconnection line, and the load data; and the second power balance constraint of the power system is constructed based on the output of the conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, the output of the pumped-storage units of the power system, the power of the interconnection line, and the second load data; the spinning reserve capacity constraint of the power system is constructed based on the load data, the maximum output of the conventional units, the processing of the conventional units, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient, and the second negative spinning reserve coefficient is constructed based on the second negative spinning reserve coefficient. The spinning reserve capacity constraint of the power system is constructed based on the load data, the maximum output of conventional units, the processing of conventional units, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient; the new energy output constraint of the power system is constructed based on the maximum output of wind power and the maximum output of photovoltaic power in the power system; the operation constraint of conventional units in the power system is constructed based on the maximum output, minimum output, maximum rate of upslope and maximum rate of downslope of conventional units; the operation constraint of conventional units in the power system is constructed based on the maximum generating power, minimum generating power, maximum pumping power, minimum pumping power and maximum water storage capacity of pumped storage units. , minimum water storage capacity, pumping efficiency and power generation efficiency, to construct the pumped-storage unit operation constraints of the power system; based on the upper and lower limits of the transmission capacity of the interconnection line, to construct the interconnection line power constraints of the power system; to summarize the first power balance constraint, rotating reserve capacity constraint, new energy output constraint, conventional unit operation constraint, pumped-storage unit operation constraint and interconnection line power constraint to obtain the first constraint condition, and to summarize the second power balance constraint, rotating reserve capacity constraint, new energy output constraint, conventional unit operation constraint, pumped-storage unit operation constraint and interconnection line power constraint to obtain the second constraint condition.

[0009] Further, the power supply data at least includes: wind power output, photovoltaic output, minimum output of conventional units and output of pumped storage units of the power system, and the interconnection line data at least includes: net incoming power of the interconnection line; based on the preset time period, load data, power supply data, interconnection line data and the first constraint condition, the first amount of power abandonment of the power system is obtained, and based on the preset time period, second load data, power supply data, interconnection line data and the second constraint condition, the second amount of power abandonment of the power system is obtained, including: based on the load data at the current moment, the net incoming power of the interconnection line, the minimum output of conventional units, the output of pumped storage units and the preset function, the maximum consumption space of the first new energy of the power system at the current moment is obtained, and based on the second load data at the current moment, the net incoming power of the interconnection line, the minimum output of conventional units, the output of pumped storage units and the preset function, the maximum consumption space of the second new energy of the power system at the current moment is obtained, wherein the current moment is any moment within the preset time period, and the preset function is used to characterize the startup state of the unit at the current moment, The maximum absorption space of the first new energy is the total absorption space of new energy in the power system, and the second absorption space of new energy is the absorption space of new energy in the power system after removing the electric energy replacement load; based on the wind power output, photovoltaic output and the first constraint at the current moment, the maximum output result of the first new energy in the power system at the current moment is obtained, and based on the wind power output, photovoltaic output and the second constraint at the current moment, the maximum output result of the second new energy in the power system at the current moment is obtained; based on the maximum absorption space of the first new energy and the maximum output result of the first new energy, the first absorption result of the power system at the current moment is obtained, and based on the maximum absorption space of the second new energy and the maximum output result of the second new energy, the second absorption result of the power system at the current moment is obtained; based on the preset time period, wind power output, photovoltaic output and the first absorption result of new energy, the first abandoned amount of the power system is obtained, and based on the preset time period, wind power output, photovoltaic output and the second absorption result of new energy, the second abandoned amount of the power system is obtained.

[0010] Furthermore, based on the maximum consumption space of the first new energy and the result of maximizing the output of the first new energy, the first new energy consumption result of the power system at the current moment is obtained, and based on the maximum consumption space of the second new energy and the result of maximizing the output of the second new energy, the second new energy consumption result of the power system at the current moment is obtained, including: in response to the maximum consumption space of the first new energy being greater than or equal to the maximization of the output of the first new energy, determining the first new energy consumption result as the result of maximizing the output of the first new energy, and in response to the maximum consumption space of the second new energy being greater than or equal to the maximization of the output of the second new energy, determining the second new energy consumption result as the result of maximizing the output of the second new energy; in response to the maximum consumption space of the first new energy being less than the maximization of the output of the first new energy, determining the first new energy consumption result as the maximum consumption space of the first new energy, and in response to the maximum consumption space of the second new energy being less than the maximization of the output of the second new energy, determining the second new energy consumption result as the maximum consumption space of the second new energy.

[0011] Furthermore, based on a preset time period, wind power output, photovoltaic output and the first new energy consumption result, a first amount of power abandonment of the power system is obtained, and based on the preset time period, wind power output, photovoltaic output and the second new energy consumption result, a second amount of power abandonment of the power system is obtained, including: obtaining the first abandoned power of the power system at the current moment based on the wind power output, photovoltaic output and the first new energy consumption result, and obtaining the second abandoned power of the power system at the current moment based on the wind power output, photovoltaic output and the second new energy consumption result; integrating the first abandoned power according to the preset time period to obtain the first amount of power abandonment of the power system, and integrating the second abandoned power according to the preset time period to obtain the second amount of power abandonment of the power system.

[0012] Furthermore, based on the first amount of abandoned electricity and the second amount of abandoned electricity, a quantitative assessment result of the new energy absorption capacity of the electric energy substitution load of the power system in the preset area is obtained, including: obtaining the difference between the second amount of abandoned electricity and the first amount of abandoned electricity to obtain a first difference; in response to the first difference being greater than or equal to a preset value, determining that the quantitative assessment result is that the electric energy substitution load has a boosting effect on the new energy in the preset area, and the gain value is the first difference; in response to the first difference being less than the preset value, determining that the quantitative assessment result is that the electric energy substitution load has a reducing effect on the new energy in the preset area, and the reduction value is the first difference.

[0013] According to another aspect of an embodiment of the present invention, a quantitative evaluation device for accommodating the new energy consumption capacity of electric energy replacement load is also provided, including: an acquisition module, used to acquire the grid operation data of the power system in a preset area, wherein the grid operation data at least includes: load data, power supply data and tie line data, the load data includes: first load data and second load data, the first load data is the load data of the electric energy replacement load of the power system, the second load data is the load data other than the first load data, and the grid operation data is used to evaluate the new energy consumption capacity of the power system; a first processing module, based on the preset time period, load data, power supply data and tie line data The first amount of abandoned electricity of the power system is obtained based on the interconnection line data, and the second amount of abandoned electricity of the power system is obtained based on the preset time period, the second load data, the power supply data and the interconnection line data, wherein the first amount of abandoned electricity is the total amount of abandoned electricity of the new energy of the power system, and the second amount of abandoned electricity is the amount of abandoned electricity of the new energy of the power system after removing the electric energy substitution load; the second processing module obtains the quantitative evaluation result of the new energy consumption capacity of the electric energy substitution load of the power system in the preset area based on the first amount of abandoned electricity and the second amount of abandoned electricity, wherein the quantitative evaluation result is used to characterize that within the preset time period, the electric energy substitution load has a gain value of increasing effect or a reduction value of reducing effect on the new energy in the preset area.

[0014] According to another aspect of an embodiment of the present invention, there is further provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the method in each embodiment of the present invention is executed when the program is running.

[0015] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the methods in various embodiments of the present invention.

[0016] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0017] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0018] According to another aspect of the embodiments of the present invention, a computer program is provided. When the computer program is executed by a processor, the methods in the embodiments of the present invention are implemented.

[0019] In an embodiment of the present invention, the grid operation data of the power system in a preset area is obtained; the first amount of abandoned power of the power system is obtained based on a preset time period, load data, power supply data and interconnection line data, and the second amount of abandoned power of the power system is obtained based on the preset time period, second load data, power supply data and interconnection line data; based on the first amount of abandoned power and the second amount of abandoned power, a quantitative evaluation result of the new energy consumption capacity of the electric energy substitution load of the power system in the preset area is obtained. By calculating the above-mentioned first amount of abandoned power, the scale of abandoned power of the power grid system in the scenario of introducing the electric energy substitution load can be accurately evaluated. By calculating the above-mentioned second amount of abandoned power, the scale of abandoned power of the power grid system in the scenario of removing the electric energy substitution load can be accurately evaluated. By comparing the scales of abandoned power in the above two scenarios, not only can it be evaluated whether the electric energy substitution load has an effect of increasing or reducing the consumption of new energy, but also the specific value of the increase or reduction can be quantified, thereby achieving the purpose of accurately quantifying the effect of the electric energy substitution load, thereby achieving the technical effect of accurately evaluating the degree of influence of the electric energy substitution load on the new energy consumption capacity, and further solving the technical problem that it is difficult for the related technology to quantitatively evaluate the new energy consumption capacity of the electric energy substitution load. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 is a flow chart of a quantitative evaluation method for a new energy consumption capacity of electric energy replacing loads according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of an optional historical year simulation regional "coal to electricity" load characteristic according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of an optional monthly simulation of regional "coal-to-electricity" loads to assist renewable energy consumption according to an embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of an optional time-division simulation of regional "coal-to-electricity" loads to assist in absorbing renewable energy according to an embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of a quantitative evaluation device for the new energy consumption capacity of electric energy replacement load according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] According to an embodiment of the present invention, an embodiment of a method for quantitatively evaluating the new energy consumption capacity of electric energy replacing loads is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0029] Figure 1 is a flow chart of a quantitative evaluation method for the new energy consumption capacity of electric energy replacement load according to an embodiment of the present invention, such as Figure 1 As shown, the method comprises the following steps:

[0030] Step S102, obtaining the grid operation data of the power system in the preset area, wherein the grid operation data at least includes: load data, power supply data and interconnection line data, the load data includes: first load data and second load data, the first load data is the load data of the electric energy replacement load of the power system, and the second load data is the load data other than the first load data, and the grid operation data is used to evaluate the new energy absorption capacity of the power system.

[0031] The above-mentioned preset area may be a pre-set area where the capacity of the electric energy replacement load to absorb renewable energy needs to be evaluated. The above-mentioned load data may be a measure of the electric energy consumed in the above-mentioned preset area within a certain time period. The above-mentioned power supply data may be data used to describe the characteristics and operating status of various types of power generation facilities (power sources). For example, the above-mentioned power supply data may include at least one or more of the following: installed capacity, maximum or minimum technical output, unit ramp rate, minimum continuous shutdown or start-up time, maintenance plan arrangement, new energy theoretical output curve, etc., but not limited to this. The above-mentioned tie line data may be data used to describe the characteristics and operating status of the connection line between power grids. For example, the above-mentioned tie line data may include at least one or more of the following: external tie line power exchange curve, external or received power, etc., but not limited to this. The above-mentioned first load data may be the load data of the electric energy replacement load of the power system. The above-mentioned second load data may be load data other than the above-mentioned first load data. The above-mentioned new energy absorption capacity may refer to the power grid's ability to accept and utilize new energy power generation.

[0032] In an optional embodiment, considering that the above-mentioned power grid operation data reflects the actual operation status of the power system in the above-mentioned preset area within a specific time period, so that the staff can understand the real-time supply and demand balance of the power system, as well as the operating characteristics of the system at different time scales, the new energy consumption capacity evaluation system (hereinafter referred to as the evaluation system) can obtain the above-mentioned power grid operation data of the power system in the preset area, thereby providing a data basis for the evaluation of the new energy consumption capacity of the power system in the area. Specifically, the evaluation system can obtain the load data, power supply data and interconnection line data of the power system in the above-mentioned area, wherein the load data includes the load data of the electric energy replacement load of the power system, that is, the above-mentioned first load data, and the load data also includes load data other than the first load data, that is, the above-mentioned second load data.

[0033] For example, in order to improve the accuracy of the assessment of the new energy absorption capacity of the above-mentioned region, the assessment system can analyze the scenario of the introduction of electric energy replacement load into the power system. Specifically, the assessment system can analyze the real-time monitoring data or historical operation data of the power system in the current scenario to obtain the above-mentioned first load data, power supply data, interconnection line data and other power grid operation data. Similarly, the assessment system can analyze the various operation data of the power system in the scenario of eliminating the electric energy replacement load to obtain the above-mentioned second load data, power supply data, interconnection line data and other power grid operation data. After obtaining the power grid operation data corresponding to the above two scenarios, the assessment system can evaluate the new energy absorption capacity of the power system in the above-mentioned region based on the above-mentioned power grid operation data.

[0034] Step S104, based on the preset time period, load data, power supply data and interconnection line data, obtain the first amount of power abandonment of the power system, and based on the preset time period, second load data, power supply data and interconnection line data, obtain the second amount of power abandonment of the power system, wherein the first amount of power abandonment is the total amount of new energy abandonment of the power system, and the second amount of power abandonment is the amount of new energy abandonment of the power system after removing the electric energy replacement load.

[0035] The above-mentioned preset time period may be a pre-set time interval. In an optional embodiment, considering that the above-mentioned first amount of abandoned power represents the total amount of abandoned power of the power system's new energy, and the above-mentioned second amount of abandoned power represents the amount of abandoned power of the power system's new energy after removing the electric energy substitution load, by obtaining the first amount of abandoned power and the second amount of abandoned power, data support can be provided for evaluating the degree of influence of the electric energy substitution load on the new energy absorption capacity of the power system, thereby helping to improve the evaluation accuracy of the evaluation system for the new energy absorption capacity of the power system. Therefore, the evaluation system can first obtain the first amount of abandoned power of the power system based on the preset time period, load data, power supply data, and tie line data to reflect the amount of abandoned power of new energy in the scenario of introducing electric energy substitution load. Then, the evaluation system can obtain the second amount of abandoned power of the power system based on the preset time period, the second load data, the power supply data, and the tie line data to reflect the amount of abandoned power of new energy in the scenario of removing the electric energy substitution load.

[0036] For example, in order to facilitate the evaluation of the effect of electric energy substitution load on new energy in a preset area, the evaluation system can pre-build a new energy consumption capacity evaluation model based on time series production simulation based on a machine learning algorithm, and set the above-mentioned preset time period. Then, the evaluation system can input the preset time period, as well as the load data, power data and tie line data determined based on the historical operation data of the power system, into the above-mentioned model, and the model can calculate the total amount of new energy abandoned in the power system based on the input data, that is, the above-mentioned first abandoned amount. Further, the evaluation system can input the preset time period, as well as the second load data, power data and tie line data determined based on the historical operation data of the power system, into the above-mentioned model, and the model can calculate the amount of new energy abandoned in the power system after removing the electric energy substitution load, that is, the above-mentioned second abandoned amount, based on the input data, so as to facilitate the evaluation system to quantify the effect of the electric energy substitution load on the consumption of new energy.

[0037] Step S106, based on the first amount of abandoned electricity and the second amount of abandoned electricity, obtain a quantitative evaluation result of the new energy absorption capacity of the electric energy substitution load of the power system in the preset area, wherein the quantitative evaluation result is used to characterize the gain value of the electric energy substitution load on the new energy in the preset area within the preset time period.

[0038] The above quantitative evaluation results can be used to reflect the effect of electric energy substitution load on the increase or decrease of new energy consumption.

[0039] In an optional embodiment, considering that the evaluation system can compare the amount of new energy abandoned in the scenario of introducing electric energy substitution load (the scenario corresponding to the above-mentioned first abandoned amount) and the scenario of removing electric energy substitution load (the scenario corresponding to the above-mentioned second abandoned amount), so as to obtain the size relationship between the first abandoned amount and the second abandoned amount, and then obtain the above-mentioned quantitative evaluation results, so as to quantify the actual increase or reduction effect of electric energy substitution load on the consumption of new energy, so as to clarify the specific value of electric energy substitution load in the consumption of new energy. Specifically, if the first abandoned amount is less than the second abandoned amount, that is, the quantitative evaluation results show that the electric energy substitution load has an increase effect on the new energy in the preset area within the preset time period, indicating that the participation of the electric energy substitution load helps to improve the absorption capacity of new energy and realize the effective utilization of new energy power. On the contrary, if the first abandoned amount is greater than the second abandoned amount, that is, the quantitative evaluation results show that the electric energy substitution load has a reduction effect on the new energy in the preset area within the preset time period, it may mean that the electric energy substitution load increases the system load in certain time periods, resulting in a reduction in the space for the consumption of new energy.

[0040] For example, the evaluation system has obtained the value of the first abandoned amount as A, and the value of the second abandoned amount as B. In order to clarify the effect of the electric energy replacement load on the new energy in the preset area, the evaluation system can calculate the difference between the first abandoned amount and the second abandoned amount to obtain the above quantitative evaluation result as C, where C = AB. If the quantitative evaluation result satisfies C<0, it means that the electric energy replacement load has an increasing effect on the consumption of new energy in the above area, and the scale of new energy consumption that can be increased within the above preset time period is C. If the quantitative evaluation result satisfies C>0, it means that the electric energy replacement load has a reducing effect on the consumption of new energy in the above area, and the scale of new energy consumption that can be reduced within the preset time period is C.

[0041] In an embodiment of the present invention, the grid operation data of the power system in a preset area is obtained; the first amount of abandoned power of the power system is obtained based on a preset time period, load data, power supply data and interconnection line data, and the second amount of abandoned power of the power system is obtained based on the preset time period, second load data, power supply data and interconnection line data; based on the first amount of abandoned power and the second amount of abandoned power, a quantitative evaluation result of the new energy consumption capacity of the electric energy substitution load of the power system in the preset area is obtained. By calculating the above-mentioned first amount of abandoned power, the scale of abandoned power of the power grid system in the scenario of introducing the electric energy substitution load can be accurately evaluated. By calculating the above-mentioned second amount of abandoned power, the scale of abandoned power of the power grid system in the scenario of removing the electric energy substitution load can be accurately evaluated. By comparing the scales of abandoned power in the above-mentioned two scenarios, not only can it be evaluated whether the electric energy substitution load has an effect of increasing or reducing the consumption of new energy, but also the specific value of the above-mentioned increase or reduction can be quantified, thereby achieving the purpose of accurately quantifying the effect of the electric energy substitution load, thereby achieving the technical effect of accurately evaluating the degree of influence of the electric energy substitution load on the new energy consumption capacity, and further solving the technical problem that the related technology is difficult to quantitatively evaluate the new energy consumption capacity of the electric energy substitution load.

[0042] Furthermore, a first amount of power abandonment in the power system is obtained based on a preset time period, load data, power supply data and tie-line data, and a second amount of power abandonment in the power system is obtained based on a preset time period, second load data, power supply data and tie-line data, including: constructing a first constraint condition for the power system based on the load data, power supply data and tie-line data, and constructing a second constraint condition for the power system based on the second load data, power supply data and tie-line data; obtaining the first amount of power abandonment in the power system based on the preset time period, load data, power supply data, tie-line data and the first constraint condition, and obtaining the second amount of power abandonment in the power system based on the preset time period, second load data, power supply data, tie-line data and the second constraint condition.

[0043] The first constraint condition may be a rule or restriction condition used to ensure the safe and stable operation of the power system during the calculation process of the first amount of power abandonment. For example, the first constraint condition may include at least one or more of the following: power balance constraint, power supply operation constraint, tie line transmission constraint, spinning reserve capacity constraint, new energy output constraint, etc., but not limited thereto. The second constraint condition may be a rule or restriction condition used to ensure the safe and stable operation of the power system during the calculation process of the second amount of power abandonment. For example, the second constraint condition may include at least one or more of the following: power balance constraint, power supply operation constraint, tie line transmission constraint, spinning reserve capacity constraint, new energy output constraint, etc., but not limited thereto.

[0044] In an optional embodiment, considering that the operation of the power system is constrained by multiple factors, including load demand, power output capacity, and power grid transmission restrictions, in order to make the calculated first abandoned amount more consistent with the actual power usage scenario, the evaluation system can use the actual load data, power data, and tie line data to construct the above-mentioned first constraint condition. Similarly, in order to make the calculated second abandoned amount more consistent with the actual power usage scenario, the evaluation system can construct the second constraint condition of the power system based on the second load data, power data, and tie line data. After the above-mentioned first constraint condition and the second constraint condition are constructed, the evaluation system can further combine the preset time period, load data, power data, tie line data, and the first constraint condition to calculate the first abandoned amount of the power system. At the same time, the evaluation system can also combine the preset time period, the second load data, power data, tie line data, and the second constraint condition to calculate the second abandoned amount of the power system. In the calculation process of the first abandoned amount and the second abandoned amount, the first constraint condition and the second constraint condition are introduced to ensure that the power system state reflected by the above-mentioned quantitative evaluation result is consistent with the actual situation, thereby improving the accuracy and reliability of the quantitative evaluation result.

[0045] For example, the evaluation system has constructed a new energy consumption capacity evaluation model based on time-series production simulation. In order to more accurately calculate the above-mentioned first abandoned power and second abandoned power, the evaluation system can first construct the first constraint of the power system based on load data, power supply data and tie line data for the scenario of introducing electric energy replacement load. Specifically, in the process of constructing the above-mentioned first constraint, it is necessary to consider multiple detailed constraints such as power balance constraint, power supply operation constraint, tie line transmission constraint, rotating reserve capacity constraint, and new energy output constraint, so that the above-mentioned first constraint can ensure that the power system operates safely and stably in the scenario of introducing electric energy replacement load. In addition, the evaluation system can also construct the second constraint of the power system based on the second load data, power supply data and tie line data for the scenario of eliminating electric energy replacement load. In the process of constructing the above-mentioned second constraint, it is also necessary to consider multiple detailed constraints such as power balance constraint, power supply operation constraint, tie line transmission constraint, rotating reserve capacity constraint, and new energy output constraint, so that the above-mentioned second constraint can ensure that the power system operates safely and stably in the scenario of eliminating electric energy replacement load. After completing the construction of the above-mentioned constraints, the evaluation system can input the preset time period, load data, power supply data, interconnection line data and the first constraint into the above-mentioned evaluation model. The model can simulate the operating state of the power system in the scenario of introducing electric energy to replace loads based on the above-mentioned data, thereby calculating the above-mentioned first amount of abandoned electricity. Similarly, the evaluation system can input the preset time period, second load data, power supply data, interconnection line data and the second constraint into the above-mentioned evaluation model. The model can simulate the operating state of the power system in the scenario of removing electric energy to replace loads based on the above-mentioned data, thereby calculating the above-mentioned second amount of abandoned electricity.

[0046] Furthermore, the power supply data at least includes: the output, maximum output and minimum output of the units of the power system, the climbing rate of the units of the power system, and the wind power output and photovoltaic output of the power system, and the interconnection line data at least includes: the upper limit value and the lower limit value of the transmission capacity of the interconnection line; the first constraint condition of the power system is constructed based on the load data, the power supply data and the interconnection line data, and the second constraint condition of the power system is constructed based on the second load data, the power supply data and the interconnection line data, including: based on the output of the conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, and the extraction of the power system The first power balance constraint of the power system is constructed based on the output of the hydropower storage unit, the power of the interconnection line, and the load data; and the second power balance constraint of the power system is constructed based on the output of the conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, the output of the pumped-storage units of the power system, the power of the interconnection line, and the second load data; the spinning reserve capacity constraint of the power system is constructed based on the load data, the maximum output of the conventional units, the processing of the conventional units, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient, and the second negative spinning reserve coefficient is constructed based on the second negative spinning reserve coefficient. The spinning reserve capacity constraint of the power system is constructed based on the load data, the maximum output of conventional units, the processing of conventional units, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient; the new energy output constraint of the power system is constructed based on the maximum output of wind power and the maximum output of photovoltaic power in the power system; the operation constraint of conventional units in the power system is constructed based on the maximum output, minimum output, maximum rate of upslope and maximum rate of downslope of conventional units; the operation constraint of conventional units in the power system is constructed based on the maximum generating power, minimum generating power, maximum pumping power, minimum pumping power and maximum water storage capacity of pumped storage units. , minimum water storage capacity, pumping efficiency and power generation efficiency, to construct the pumped-storage unit operation constraints of the power system; based on the upper and lower limits of the transmission capacity of the interconnection line, to construct the interconnection line power constraints of the power system; to summarize the first power balance constraint, rotating reserve capacity constraint, new energy output constraint, conventional unit operation constraint, pumped-storage unit operation constraint and interconnection line power constraint to obtain the first constraint condition, and to summarize the second power balance constraint, rotating reserve capacity constraint, new energy output constraint, conventional unit operation constraint, pumped-storage unit operation constraint and interconnection line power constraint to obtain the second constraint condition.

[0047] The above-mentioned first power balance constraint may refer to a constraint condition for ensuring that the total power generation and total power consumption of the power system remain balanced at any time in the scenario of introducing electric energy substitution load. The above-mentioned second power balance constraint may refer to a constraint condition for ensuring that the total power generation and total power consumption of the power system remain balanced at any time in the scenario of eliminating electric energy substitution load. The above-mentioned spinning reserve capacity constraint may be a constraint condition for ensuring that the power system has a certain amount of standby power generation capacity to cope with sudden load changes or power failures. The above-mentioned new energy output constraint may be a constraint condition for limiting the output of renewable energy power generation sources such as wind power and photovoltaic power. The above-mentioned conventional unit operation constraint may be a constraint condition for limiting the output of various conventional power sources (such as coal-fired, gas-fired, renewable energy, etc.). The above-mentioned pumped storage unit operation constraint may be a constraint condition for limiting the power of the pumped storage unit. The above-mentioned interconnection line power constraint may refer to a constraint condition for limiting the upper and lower limits of the transmission capacity of the interconnection line.

[0048] Specifically, the calculation method of the first power balance constraint can be shown as follows:

[0049]

[0050] The calculation method of the second power balance constraint can be shown as follows:

[0051] P l,con (t) = P l (t)-P l,e2x (t);

[0052]

[0053] Where P g (n,t) is the output of the nth conventional unit at time t, N is the number of conventional units, P w (t) is the wind power output at time t, P pv (t) is the photovoltaic power output at time t, Pps(z,t) represents the output of the z-th pumped storage unit at time t, Z represents the number of pumped storage units, and L i (i,t) is the power of the ith tie line at time t, I represents the total number of tie lines, P l (t) represents load data, P l,e2x (t) represents the electric energy replacement load data, P l,con (t) represents the load data after removing the electric energy replacement load. The above spinning reserve capacity constraint can be expressed as follows:

[0054]

[0055] Where P gmax(n,t) is the maximum technical output of the nth conventional unit at time t, S p is the positive spinning reserve capacity, S n is the negative spinning reserve capacity, w l is the load spinning reserve coefficient. The interpretation of other symbols in the formula is consistent with the above formula and will not be repeated here. The above new energy output constraint can be expressed as follows:

[0056]

[0057] Where P wmax (t) is the theoretical maximum output of wind power at time t, P pvmax (t) is the theoretical maximum output of photovoltaic at time t. The interpretation of other symbols in the formula is consistent with the above formula and will not be repeated here. The above conventional unit operation constraints can be expressed as follows:

[0058] P gmin (n)≤P g (n,t)≤P gmax (n);

[0059]

[0060] Where ΔP up (n) is the maximum ramp rate of the nth conventional unit, ΔP down (n) is the maximum ramp rate of the nth conventional unit. The interpretations of other symbols in the formula are consistent with the above formula and will not be repeated here. The above pumped storage unit operation constraints can be expressed as follows:

[0061]

[0062] P ps (z,t)=P h (z,t)×Y h,work (z,t)-P p (z,t)×Y p,work (z,t).

[0063] Where P hmax (z) is the maximum power generation capacity of the z-th pumped storage unit, P hmin (z) is the minimum power generation capacity of the z-th pumped storage unit, P pmax (z) is the maximum pumping power of the z-th pumped storage unit, P pmin (z) is the minimum pumping power of the z-th pumped storage unit, Y h,work (z, t) is the power generation operation condition of the zth pumped storage unit at time t, Y p,work (z,t) is the pumping operation condition of the zth pumped storage unit at time t, V hmax(z) is the maximum water storage capacity of the z-th pumped storage unit, V hmin (z) is the minimum water storage capacity of the z-th pumped storage unit, η p (z) is the pumping efficiency of the z-th pumped storage unit, η h (z) is the power generation efficiency of the z-th pumped storage unit. The interpretations of other symbols in the formula are consistent with the above formula and will not be repeated here. The above tie line power constraint can be as shown in the following formula:

[0064] -L max (i)≤L(i,t)≤L max (i).

[0065] Where, L max (i) is the upper limit of the transmission capacity of the ith tie line, -L max (i) is the lower limit of the transmission capacity of the ith interconnection line. The meanings of other symbols in the formula are consistent with the above formula and will not be repeated here.

[0066] In an optional embodiment, taking into account the need to consider the complexity and operation requirements of the power system more carefully and comprehensively during the construction of the above-mentioned first constraint and the second constraint, the first constraint and the second constraint can better meet the actual needs, thereby improving the evaluation accuracy of the evaluation system for the power system's new energy absorption capacity. Therefore, the evaluation system needs to conduct a detailed analysis of multiple constraints in the power system in the scenario of introducing electric energy substitution loads and in the scenario of eliminating electric energy substitution loads, and input the analysis results into a pre-trained new energy absorption capacity evaluation model to more accurately construct the above-mentioned first constraint and the second constraint.

[0067] Specifically, taking the scenario of introducing electric energy to replace load as an example, the evaluation system has constructed a new energy consumption capacity evaluation model based on time-series production simulation. The evaluation system can first input the output of conventional units of the power system, wind power output, photovoltaic output, output of pumped storage units, power of the interconnection line, and load data into the above model. The model can construct the first power balance constraint of the power system according to the above first power balance constraint formula, which is used to maintain the balance between the total power generation and power demand at any time in the scenario of introducing electric energy to replace load. Further, the evaluation system can input load data, the maximum output of conventional units, the processing of conventional units, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient into the above model. The model can construct the spinning reserve capacity constraint of the power system in the scenario of introducing electric energy to replace load according to the above spinning reserve capacity constraint formula, which is used to ensure that the power system maintains a certain amount of spare power generation capacity to cope with sudden load changes or power failures in the scenario of introducing electric energy to replace load. Furthermore, the evaluation system can also input the maximum wind power output of the power system and the maximum photovoltaic output of the power system into the above-mentioned model. The model can construct the new energy output constraint of the power system according to the above-mentioned new energy output constraint formula to ensure the stability of the grid frequency and voltage and avoid the imbalance of power supply and demand due to sudden changes in new energy output; the evaluation system can also input the maximum output, minimum output, maximum up-climbing rate and maximum down-climbing rate of the above-mentioned conventional units into the above-mentioned model. The model can construct the conventional unit operation constraint of the power system according to the above-mentioned conventional unit operation constraint formula to ensure that the conventional units can operate safely and stably under the conditions of dynamically changing power demand and renewable energy output; the evaluation system can also The maximum power generation, minimum power generation, maximum pumping power, minimum pumping power, maximum water storage capacity, minimum water storage capacity, pumping efficiency and power generation efficiency of the pumped storage unit can be input into the above model. The model can construct the pumped storage unit operation constraint of the power system according to the above pumped storage unit operation constraint formula, which is used to constrain the power range and water storage state of the pumped storage unit to ensure the long-term reliability of the pumped storage unit and the stable operation of the power system; the evaluation system can also input the upper limit and lower limit of the transmission capacity of the tie line into the above model. The model can construct the tie line power constraint of the power system according to the above tie line power constraint formula to prevent the tie line from being overloaded to reduce the loss during power transmission. Finally, the new energy consumption capacity evaluation model can summarize the constructed first power balance constraint, rotating reserve capacity constraint, new energy output constraint, conventional unit operation constraint, pumped storage unit operation constraint and tie line power constraint, so as to construct the above first constraint condition.

[0068] Similarly, taking the scenario of eliminating electric energy substitution load as an example, the evaluation system can input the output of conventional units of the power system, wind power output, photovoltaic output, output of pumped storage units, power of the interconnection line, and the second load data into the above model, and the model can construct the second power balance constraint of the power system according to the above second power balance constraint formula. The evaluation system can also input the second load data, the maximum output of conventional units, the processing of conventional units, the positive rotating reserve of the power system, the negative rotating reserve of the power system, and the load rotating reserve coefficient into the above model, and the model can construct the rotating reserve capacity constraint of the power system in the scenario of eliminating electric energy substitution load according to the above rotating reserve capacity constraint formula. The construction method of new energy output constraints, conventional unit operation constraints, pumped storage unit operation constraints and interconnection line power constraints in the scenario of eliminating electric energy substitution load is consistent with the corresponding constraint construction method in the scenario of introducing electric energy substitution load, and will not be repeated here. The new energy absorption capacity assessment model can summarize the above-mentioned second power balance constraint, rotating reserve capacity constraint, new energy output constraint, conventional unit operation constraint, pumped storage unit operation constraint and interconnection line power constraint to construct the above-mentioned second constraint condition. The above-mentioned first constraint condition and second constraint condition constructed can enable the above-mentioned model to simulate the operation status of the power system in different scenarios under the premise of being more in line with the actual operation of the power system, thereby improving the assessment accuracy of the assessment system for the new energy absorption capacity of the power system.

[0069] Further, the power supply data at least includes: wind power output, photovoltaic output, minimum output of conventional units and output of pumped storage units of the power system, and the interconnection line data at least includes: net incoming power of the interconnection line; based on the preset time period, load data, power supply data, interconnection line data and the first constraint condition, the first amount of power abandonment of the power system is obtained, and based on the preset time period, second load data, power supply data, interconnection line data and the second constraint condition, the second amount of power abandonment of the power system is obtained, including: based on the load data at the current moment, the net incoming power of the interconnection line, the minimum output of conventional units, the output of pumped storage units and the preset function, the maximum consumption space of the first new energy of the power system at the current moment is obtained, and based on the second load data at the current moment, the net incoming power of the interconnection line, the minimum output of conventional units, the output of pumped storage units and the preset function, the maximum consumption space of the second new energy of the power system at the current moment is obtained, wherein the current moment is any moment within the preset time period, and the preset function is used to characterize the startup state of the unit at the current moment, The maximum absorption space of the first new energy is the total absorption space of new energy in the power system, and the second absorption space of new energy is the absorption space of new energy in the power system after removing the electric energy replacement load; based on the wind power output, photovoltaic output and the first constraint at the current moment, the maximum output result of the first new energy in the power system at the current moment is obtained, and based on the wind power output, photovoltaic output and the second constraint at the current moment, the maximum output result of the second new energy in the power system at the current moment is obtained; based on the maximum absorption space of the first new energy and the maximum output result of the first new energy, the first absorption result of the power system at the current moment is obtained, and based on the maximum absorption space of the second new energy and the maximum output result of the second new energy, the second absorption result of the power system at the current moment is obtained; based on the preset time period, wind power output, photovoltaic output and the first absorption result of new energy, the first abandoned amount of the power system is obtained, and based on the preset time period, wind power output, photovoltaic output and the second absorption result of new energy, the second abandoned amount of the power system is obtained.

[0070] The above-mentioned current moment may be any moment within the above-mentioned preset time period. The above-mentioned preset function may be a function used to characterize the startup state of the unit at the current moment. The above-mentioned first maximum new energy consumption space may be the total new energy consumption space of the power system in the scenario of introducing electric energy substitution load. The above-mentioned second maximum new energy consumption space may be the new energy consumption space after removing the electric energy substitution load from the total new energy consumption space of the power system in the scenario of removing the electric energy substitution load. The above-mentioned first new energy output maximization result may refer to the result that the new energy power generation reaches the peak value in the scenario of introducing the electric energy substitution load. The above-mentioned second new energy output maximization result may be the result that the new energy power generation reaches the peak value in the scenario of removing the electric energy substitution load. The above-mentioned first new energy consumption result may be the amount of new energy actually accepted or consumed by the power system in the scenario of introducing the electric energy substitution load. The above-mentioned second new energy consumption result may be the amount of new energy actually accepted or consumed by the power system in the scenario of removing the electric energy substitution load.

[0071] Specifically, the calculation method of the maximum consumption space of the first new energy source can be shown as follows:

[0072]

[0073] The calculation method of the maximum consumption space of the second new energy source can be shown as follows:

[0074]

[0075] Where P a (t)1 is the maximum consumption space of new energy at time t under the scenario of introducing electric energy to replace load, which is also the maximum consumption space of the first new energy mentioned above, P a (t)2 is the maximum consumption space of new energy at time t when the electric energy replacement load is eliminated, that is, the second maximum consumption space of new energy mentioned above, X(n,t) is the above preset function, which represents the startup state of the nth unit at time t, and the interpretation of other symbols in the formula is consistent with the above formula, which will not be repeated here. The calculation method of the above first new energy output maximization result or the second new energy output maximization result can be shown as follows:

[0076]

[0077] Where, f is the maximum output result of the first new energy source or the maximum output result of the second new energy source, P w (t) is the wind power output at time t, P pv(t) is the photovoltaic output at time t, and T is the preset time period. It should be noted that if the power system is in a scenario where electric energy replacement loads are introduced, the formula can be used to calculate the above-mentioned first new energy output maximization result, and if the power system is in a scenario where electric energy replacement loads are removed, the formula can be used to calculate the above-mentioned second new energy output maximization result.

[0078] In an optional embodiment, considering that the maximum absorption space of new energy is the maximum value of the amount of new energy power generation that the power system can theoretically accept under specific constraints (such as the first constraint and the second constraint mentioned above), this value reflects the new energy acceptance capacity of the power system under ideal conditions and is the basis for calculating the amount of abandoned power. Therefore, the evaluation system can first determine the maximum absorption space of new energy under the current operation scenario. Then, in order to reflect the upper limit of the amount of new energy power generation that can be actually utilized by the power system under the current grid system configuration and operation scenario, the evaluation system can determine the maximum output result of new energy within the preset time period under the scenario, thereby helping to evaluate the gap between the actual output of new energy and the theoretical absorption capacity. Subsequently, the evaluation system can determine the result of new energy absorption, thereby obtaining the amount of new energy power generation that the power system can ultimately absorb under the scenario. Further, the evaluation system can calculate the amount of abandoned power of the power system under the scenario based on the preset time period, wind power output, photovoltaic output and new energy absorption results.

[0079] Specifically, taking the scenario of introducing electric energy to replace load as an example, the evaluation system has constructed a new energy consumption capacity evaluation model based on time series production simulation. The evaluation system can input the current load data, the net power received by the interconnection line, the minimum output of the conventional unit, the output of the pumped storage unit and the preset function into the above model. The model can calculate the maximum consumption space of the first new energy of the power system at the current moment according to the calculation formula of the maximum consumption space of the first new energy. In this scenario, the maximum consumption space of the first new energy is the total new energy consumption space of the power system. Then, the evaluation system can input the wind power output, photovoltaic output and the first constraint condition at the current moment into the above model. The model can calculate the maximum output result of the first new energy of the power system at the current moment according to the calculation formula of the maximum output result of the first new energy. Subsequently, the evaluation system can use the above new energy consumption capacity evaluation model to compare the relationship between the maximum consumption space of the first new energy and the maximum output result of the first new energy, and determine the first new energy consumption result of the power system at the current moment. Finally, the evaluation system can input the preset time period, wind power output, photovoltaic output and the first new energy consumption result into the above-mentioned model. The model can simulate the operating state of the power system under the scenario of introducing electric energy to replace loads based on the above-mentioned input data, and further calculate the first abandoned power amount of the power system.

[0080] Similarly, taking the scenario of eliminating the electric energy substitution load as an example, the evaluation system can input the second load data at the current moment, the net incoming power of the interconnection line, the minimum output of the conventional unit, the output of the pumped storage unit and the preset function into the above model. The model can calculate the second new energy maximum consumption space of the power system at the current moment according to the above second new energy maximum consumption space calculation formula. In this scenario, the second new energy consumption space is the new energy consumption space of the power system after removing the electric energy substitution load. Then, the evaluation system can input the wind power output, photovoltaic output and the second constraint condition at the current moment into the above model. The model can calculate the second new energy output maximization result of the power system at the current moment according to the above second new energy output maximization result calculation formula. Subsequently, the evaluation system can use the above new energy consumption capacity evaluation model to compare the size relationship between the above second new energy maximum consumption space and the second new energy output maximization result, and determine the second new energy consumption result of the power system at the current moment. Finally, the evaluation system can input the preset time period, wind power output, photovoltaic output and the above-mentioned second new energy consumption result into the above-mentioned model. The model can simulate the operating state of the power system under the scenario of eliminating the electric energy replacement load based on the above-mentioned input data, and further calculate the second amount of abandoned power of the power system. Through the above steps, the new energy consumption capacity evaluation model can more accurately derive the above-mentioned first and second amounts of abandoned power, so that the evaluation system can accurately evaluate the power system's acceptance and utilization efficiency of new energy, thereby improving the evaluation accuracy of the evaluation system for the power system's new energy consumption capacity.

[0081] Furthermore, based on the maximum consumption space of the first new energy and the result of maximizing the output of the first new energy, the first new energy consumption result of the power system at the current moment is obtained, and based on the maximum consumption space of the second new energy and the result of maximizing the output of the second new energy, the second new energy consumption result of the power system at the current moment is obtained, including: in response to the maximum consumption space of the first new energy being greater than or equal to the maximization of the output of the first new energy, determining the first new energy consumption result as the result of maximizing the output of the first new energy, and in response to the maximum consumption space of the second new energy being greater than or equal to the maximization of the output of the second new energy, determining the second new energy consumption result as the result of maximizing the output of the second new energy; in response to the maximum consumption space of the first new energy being less than the maximization of the output of the first new energy, determining the first new energy consumption result as the maximum consumption space of the first new energy, and in response to the maximum consumption space of the second new energy being less than the maximization of the output of the second new energy, determining the second new energy consumption result as the maximum consumption space of the second new energy.

[0082] The calculation method of the above-mentioned first new energy consumption result can be shown as follows:

[0083]

[0084] The calculation method of the above second new energy consumption result can be shown as follows:

[0085]

[0086] Where P new (t)1 represents the above-mentioned first new energy consumption result, P new (t)2 represents the above-mentioned second new energy consumption result. The interpretation of other symbols in the formula is consistent with the previous formula and will not be repeated here.

[0087] In an optional embodiment, considering that the maximum consumption space of new energy represents the maximum value of the new energy power generation that the power system can accept under the current operating scenario, by comparing the above-mentioned maximum consumption space of new energy with the actual new energy output, the evaluation system can determine the new energy consumption result under the current operating scenario. For example, if the maximum consumption space of new energy under the current scenario is greater than or equal to the maximum output result of new energy, the evaluation system can determine that the new energy consumption result under the current scenario is the maximum output result of new energy. For another example, if the maximum consumption space of new energy under the current scenario is less than the maximum output of new energy, the evaluation system can determine that the new energy consumption result is the maximum consumption space of new energy. Through the comparison process of the above-mentioned maximum consumption space of new energy and the maximum output result of new energy, the power system's ability to accept new energy can be evaluated, that is, whether the system has fully utilized the available new energy resources, or whether there is a waste of resources caused by a consumption bottleneck, thereby providing a data basis for the calculation of the amount of abandoned electricity.

[0088] Specifically, taking the scenario of introducing electric energy to replace load as an example, in order to accurately determine the first new energy consumption result corresponding to the scenario, the evaluation system can compare the relationship between the maximum consumption space of the first new energy and the maximum output result of the first new energy. If the comparison result shows that the maximum consumption space of the first new energy is greater than or equal to the maximum output result of the first new energy, the evaluation system can determine the first new energy consumption result as the maximum output result of the first new energy according to the above calculation formula for the first new energy consumption result. If the comparison result shows that the maximum consumption space of the first new energy is less than the maximum output of the first new energy, the evaluation system can determine the first new energy consumption result as the maximum consumption space of the first new energy according to the above calculation formula for the first new energy consumption result.

[0089] Similarly, taking the scenario of eliminating electric energy replacement load as an example, in order to accurately determine the second new energy consumption result corresponding to the scenario, the evaluation system can compare the size relationship between the second new energy maximum consumption space and the second new energy output maximization result. If the comparison result shows that the second new energy maximum consumption space is greater than or equal to the second new energy output maximization, the evaluation system can determine the second new energy consumption result as the second new energy output maximization result according to the above second new energy consumption result calculation formula. If the comparison result shows that the second new energy maximum consumption space is less than the second new energy output maximization, the evaluation system can determine the second new energy consumption result as the second new energy maximum consumption space according to the above second new energy consumption result calculation formula.

[0090] Furthermore, based on a preset time period, wind power output, photovoltaic output and the first new energy consumption result, a first amount of power abandonment of the power system is obtained, and based on the preset time period, wind power output, photovoltaic output and the second new energy consumption result, a second amount of power abandonment of the power system is obtained, including: obtaining the first abandoned power of the power system at the current moment based on the wind power output, photovoltaic output and the first new energy consumption result, and obtaining the second abandoned power of the power system at the current moment based on the wind power output, photovoltaic output and the second new energy consumption result; integrating the first abandoned power according to the preset time period to obtain the first amount of power abandonment of the power system, and integrating the second abandoned power according to the preset time period to obtain the second amount of power abandonment of the power system.

[0091] The calculation method of the first abandoned power can be shown as follows:

[0092] P cur (t)1=P w (t)+P pv (t)-P new (t)1.

[0093] The calculation method of the second abandoned power can be shown as follows:

[0094] P cur (t)2=P w (t)+P pv (t)-P new (t)2.

[0095] Where P cur (t)1 represents the power abandoned by renewable energy at time t when the power system introduces electric energy to replace loads, P cur (t)2 represents the renewable energy power abandoned at time t in the scenario where the electric energy replacement load is eliminated. The meanings of other symbols in the formula are the same as those in the previous formula and will not be repeated here.

[0096] The calculation method of the first abandoned power amount can be shown as follows:

[0097] E cur,base =∫ i T P cur (t)1dt.

[0098] The calculation method of the second abandoned power amount can be shown as follows:

[0099] E cur,con =∫ i T P cur (t)2dt.

[0100] In the formula, E cur,base is the first amount of power abandoned within the above preset time period, E cur,con is the second abandoned power within the above preset time period. The interpretations of other symbols in the formula are consistent with the above formula and will not be repeated here.

[0101] In an optional embodiment, considering that the abandoned power of the power system represents the amount of renewable energy power generation that the power system has not been able to absorb at a certain moment, by calculating the abandoned power at each time node, the total amount of renewable energy power that has not been absorbed in the entire preset time period in the current scenario can be accurately quantified, and this total amount is the abandoned power of the power system in the current scenario. Therefore, the evaluation system can obtain the abandoned power of the power system at the current moment based on the wind power output, photovoltaic output and renewable energy absorption results for the current power system operation scenario, and then the evaluation system can integrate the abandoned power in the current scenario to convert the instantaneous abandoned power into the abandoned power for the entire preset time period, so that the evaluation system can quantify the wasted renewable energy power in different scenarios.

[0102] Specifically, taking the scenario of introducing electric energy to replace loads as an example, the evaluation system has determined that the above-mentioned first new energy consumption result is the above-mentioned first new energy maximum consumption space. In order to more accurately obtain the first power abandonment amount of the power system within the above-mentioned preset time period, the evaluation system can be based on wind power output, photovoltaic output and the first new energy consumption result. According to the above-mentioned first power abandonment power calculation formula, the first power abandonment power of the power system at the current moment is obtained. Then, the evaluation system can further integrate the above-mentioned first charging power according to the above-mentioned first power abandonment power calculation formula to obtain the above-mentioned first power abandonment amount.

[0103] Similarly, taking the scenario of excluding electric energy replacement load as an example, the evaluation system has determined that the above-mentioned second new energy consumption result is the above-mentioned second new energy maximum consumption space. In order to more accurately obtain the second power abandonment amount of the power system within the above-mentioned preset time period, the evaluation system can be based on wind power output, photovoltaic output and the second new energy consumption result. According to the above-mentioned second power abandonment power calculation formula, the second power abandonment power of the power system at the current moment is obtained. Then, the evaluation system can further integrate the above-mentioned second charging power according to the above-mentioned second power abandonment power calculation formula to obtain the above-mentioned second power abandonment amount.

[0104] Furthermore, based on the first amount of abandoned electricity and the second amount of abandoned electricity, a quantitative assessment result of the new energy absorption capacity of the electric energy substitution load of the power system in the preset area is obtained, including: obtaining the difference between the second amount of abandoned electricity and the first amount of abandoned electricity to obtain a first difference; in response to the first difference being greater than or equal to a preset value, determining that the quantitative assessment result is that the electric energy substitution load has a boosting effect on the new energy in the preset area, and the gain value is the first difference; in response to the first difference being less than the preset value, determining that the quantitative assessment result is that the electric energy substitution load has a reducing effect on the new energy in the preset area, and the reduction value is the first difference.

[0105] The first difference may be a difference between the second abandoned amount and the first abandoned amount. The calculation method of the first difference may be as shown in the following formula:

[0106] δ=E cur,con -E cur,base .

[0107] In the formula, δ represents the first difference, and the interpretations of other symbols in the formula are consistent with the above formula and will not be repeated here.

[0108] The above-mentioned preset value may be a pre-set value used to determine the effect of the electric energy replacement load on the new energy in the preset area. For example, the above-mentioned preset value may be set to 0, but is not limited thereto. The above-mentioned gain value may refer to a specific value for increasing the scale of new energy consumption within the above-mentioned preset time period. The above-mentioned reduction value may refer to a specific value for reducing the scale of new energy consumption within the above-mentioned preset time period.

[0109] In an optional embodiment, considering that the first amount of abandoned electricity is the amount of abandoned electricity calculated in the scenario of introducing electric energy substitution load, and the second amount of abandoned electricity is the amount of abandoned electricity calculated in the scenario of eliminating electric energy substitution load, in order to quantitatively evaluate the effect of electric energy substitution charge on the new energy absorption capacity of the power system, the evaluation system can subtract the second amount of abandoned electricity from the first amount of abandoned electricity, and the obtained calculation result, that is, the first difference, and then the evaluation system can compare the first difference with the preset value. If the first difference is greater than or equal to the preset value, it indicates that the amount of abandoned electricity in the scenario of introducing electric energy substitution load is smaller. Therefore, the evaluation system can determine the quantitative evaluation result that the electric energy substitution load has a boosting effect on the new energy in the preset area, and the gain value is the first difference. If the first difference is less than the preset value, it indicates that the amount of abandoned electricity in the scenario of introducing electric energy substitution load is larger. Therefore, the evaluation system can determine the quantitative evaluation result that the electric energy substitution load has a reducing effect on the new energy in the preset area, and the reduction value is the first difference. After the above calculation steps, the evaluation system can more accurately quantitatively evaluate the effect of electric energy substitution charge on the new energy absorption capacity of the power system.

[0110] For example, the above preset value can be set to 0. The evaluation system has calculated that the amount of power abandoned in the scenario of introducing electric energy substitution load is A, that is, the above first amount of abandoned is A, and calculated that the amount of power abandoned in the scenario of removing electric energy substitution load is B, that is, the above second amount of abandoned is B. In order to accurately quantify the effect of electric energy substitution load on the consumption of new energy, the evaluation system can calculate the first difference as BA based on the calculation formula of the above first difference, and then the evaluation system can determine the relationship between the above first difference and the above preset value, that is, when BA≥0, it indicates that the amount of abandoned in the scenario of introducing electric energy substitution load is smaller. At this time, the evaluation system can determine the quantitative evaluation result that the electric energy substitution load has a boosting effect on the new energy in the preset area, and the gain value is BA. When BA<0, it indicates that the amount of abandoned in the scenario of introducing electric energy substitution load is larger. At this time, the evaluation system can determine the quantitative evaluation result that the electric energy substitution load has a reducing effect on the new energy in the preset area, and the reduction value is the first difference.

[0111] For ease of understanding, in this embodiment, a regional power grid is selected as an example for analysis to quantify the region's "coal to electricity" electricity replacement load in the historical heating season (November 15th to March 15th of the following year) new energy consumption capacity. The time series data of the relevant load, power supply, and interconnection line of the regional power grid adopts the actual operation of the historical year. The coal-fired units after deep peak-shaving transformation in the heating season have a peak-shaving capacity of 20% to 40%, and the average peak-shaving depth of the gas unit is 24%. The historical power installed capacity of the example area is shown in Table 1 below. The output range of the pumped storage unit is -100% to 100%, and the load rotation standby coefficient is set to 0.08. The maximum and minimum values ​​of the monthly transmission power are used as the transmission planning limits of the power grid.

[0112] Table 1

[0113]

[0114] Through simulation calculation, under the scenario of introducing the above-mentioned electric energy replacement load, that is, introducing the "coal to electricity" load scenario, the amount of new energy abandoned in the regional power grid during the heating season is 1.11 billion kWh. By collecting and integrating the load data of typical users of "coal to electricity" in the simulated area, using the curve superposition method and combining the proportion of various types of users, the "coal to electricity" special electric energy replacement load curve for the heating season in the simulated area in historical years was fitted. Figure 2 is a schematic diagram of an optional historical year simulation regional "coal to electricity" load characteristics according to an embodiment of the present invention, such as Figure 2 As shown in the figure, the vertical axis represents the load scale, and the horizontal axis represents the number of hours in a day. Figure 2 It can be seen that in the early stage of heating, the load scale generally shows a trend of first decreasing and then increasing. The scale of electric energy substitution load decreases from morning to noon, but starts to increase from 16:00 and reaches a peak at around 21:00. The scale of electric energy substitution load in the early stage of heating is generally low. In the early stage of heating, the scale of electric energy substitution load first shows a downward trend, and then starts to increase from around 17:00. From the load curve in the early stage of heating in the figure, it can be seen that the scale of electric energy substitution load in the early stage of heating is relatively high, but lower than the scale of electric energy substitution load in the extreme cold period. In the extreme cold period, the scale of electric energy substitution load is relatively high and fluctuates significantly within a day, which indicates that the demand for heating increases under extreme weather conditions, resulting in an increase in the scale of electric energy substitution load. In the later stage of heating, the changes in the scale of electric energy substitution load are similar to those in the early stage of heating, indicating that as the weather warms up, the demand for electric energy substitution load gradually decreases, but it still maintains a high level in the morning and evening. At the end of the heating period, the changes in the scale of electricity replacement load are similar to those at the beginning of the heating period, indicating that at the end of the heating season, the demand for electricity replacement load further decreases, but due to the temperature difference, a higher load scale is maintained in the morning and evening.

[0115] The "coal to electricity" load was removed from the regional load curve, and simulation calculations were carried out again. Under the comparison plan, the amount of new energy power abandonment in the regional power grid during the heating season was 1.319 billion kWh. Since the amount of abandoned power after removing the "coal to electricity" load was greater than the amount of abandoned power after introducing the "coal to electricity" load, it can be determined that the "coal to electricity" load has a boosting effect on the new energy consumption in the simulated area, and can increase the new energy consumption scale by 209 million kWh during the simulation period.

[0116] Figure 3 is a schematic diagram of an optional monthly simulation of regional "coal to electricity" load to assist renewable energy consumption according to an embodiment of the present invention, such as Figure 3 As shown in the figure, the vertical axis represents the power consumption, the unit is 100 million kWh, and the horizontal axis represents the month. Figure 3 It can be seen that during the simulated heating season, the simulated regional power grid's "coal to electricity" load helped the new energy consumption mainly in the middle and late stages of heating. During the period from January to March, it helped the new energy consumption by a total of 190 million kWh.

[0117] Figure 4 is a schematic diagram of an optional time-division simulation of regional "coal-to-electricity" loads to assist in absorbing renewable energy according to an embodiment of the present invention, such as Figure 4 As shown in the figure, the vertical axis represents the power consumption, the unit is 100 million kWh, and the horizontal axis represents the number of hours in a day. Figure 4 It can be seen that during the simulated heating season, the simulated regional coal-to-electricity load helped the new energy consumption mainly in the early morning and from noon to afternoon. Among them, from 1:00 to 6:00 in the morning, it helped the new energy consumption of 100 million kWh, and from 11:00 to 18:00 in the afternoon, it helped the new energy consumption of 90 million kWh.

[0118] According to an embodiment of the present invention, an embodiment of a device for quantitatively evaluating the new energy consumption capacity of electric energy replacement loads is provided. It should be noted that the device can be used to execute the above-mentioned method for quantitatively evaluating the new energy consumption capacity of electric energy replacement loads. The specific implementation method and application scenario are the same as those in the above-mentioned embodiment and will not be described in detail here. Figure 5 is a schematic diagram of a quantitative evaluation device for the new energy consumption capacity of electric energy replacement load according to an embodiment of the present invention, such as Figure 5 As shown, the device comprises:

[0119] The acquisition module 502 is used to obtain the grid operation data of the power system in a preset area, wherein the grid operation data at least includes: load data, power supply data and interconnection line data, the load data includes: first load data and second load data, the first load data is the load data of the electric energy replacement load of the power system, and the second load data is the load data other than the first load data, and the grid operation data is used to evaluate the new energy absorption capacity of the power system.

[0120] The first processing module 504 obtains a first amount of power abandonment of the power system based on a preset time period, load data, power supply data and interconnection line data, and obtains a second amount of power abandonment of the power system based on a preset time period, second load data, power supply data and interconnection line data, wherein the first amount of power abandonment is the total amount of new energy abandonment of the power system, and the second amount of power abandonment is the amount of new energy abandonment of the power system after removing the electric energy replacement load.

[0121] The second processing module 506 obtains a quantitative evaluation result of the new energy absorption capacity of the electric energy substitution load of the power system in the preset area based on the first amount of abandoned electricity and the second amount of abandoned electricity, wherein the quantitative evaluation result is used to characterize the gain value of the electric energy substitution load on the new energy in the preset area within the preset time period.

[0122] Furthermore, the first processing module is also used to: construct a first constraint condition for the power system based on load data, power supply data and interconnection line data, and construct a second constraint condition for the power system based on second load data, power supply data and interconnection line data; obtain a first amount of power abandonment in the power system based on a preset time period, load data, power supply data, interconnection line data and the first constraint condition, and obtain a second amount of power abandonment in the power system based on a preset time period, second load data, power supply data, interconnection line data and the second constraint condition.

[0123] Furthermore, the power supply data at least includes: the output, maximum output and minimum output of the units of the power system, the climbing rate of the units of the power system, and the wind power output and photovoltaic output of the power system, and the interconnection line data at least includes: the upper limit value and the lower limit value of the transmission capacity of the interconnection line; the first processing module is also used to: construct a first power balance constraint of the power system based on the output of the conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, the output of the pumped-storage units of the power system, the power of the interconnection line, and the load data; and construct a second power balance constraint of the power system based on the output of the conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, the output of the pumped-storage units of the power system, the power of the interconnection line, and the second load data; construct a spinning reserve capacity constraint of the power system based on the load data, the maximum output of the conventional units, the processing of the conventional units, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient, and construct a spinning reserve capacity constraint of the power system based on the second load data, the maximum output of the conventional units, the processing of the conventional units, the positive spinning reserve of the power system The rotating reserve capacity constraint of the power system is constructed based on the rotating reserve capacity, the negative rotating reserve capacity of the power system, and the load rotating reserve coefficient; the new energy output constraint of the power system is constructed based on the maximum output of wind power in the power system and the maximum output of photovoltaic power in the power system; the conventional unit operation constraint of the power system is constructed based on the maximum output, minimum output, maximum up-slope rate and maximum down-slope rate of conventional units; the pumped-storage unit operation constraint of the power system is constructed based on the maximum generating power, minimum generating power, maximum pumping power, minimum pumping power, maximum water storage capacity, minimum water storage capacity, pumping efficiency and generating efficiency of the pumped-storage unit; the interconnection line power constraint of the power system is constructed based on the upper limit and lower limit of the transmission capacity of the interconnection line; the first power balance constraint, the rotating reserve capacity constraint, the new energy output constraint, the conventional unit operation constraint, the pumped-storage unit operation constraint and the interconnection line power constraint are summarized to obtain the first constraint condition, and the second power balance constraint, the rotating reserve capacity constraint, the new energy output constraint, the conventional unit operation constraint, the pumped-storage unit operation constraint and the interconnection line power constraint are summarized to obtain the second constraint condition.

[0124] Furthermore, the power supply data at least includes: wind power output, photovoltaic output, minimum output of conventional units and output of pumped-storage units of the power system, and the interconnection line data at least includes: net input power of the interconnection line; the first processing module is also used to: based on the load data at the current moment, the net input power of the interconnection line, the minimum output of conventional units, the output of pumped-storage units and a preset function, obtain the maximum consumption space of the first new energy of the power system at the current moment, and based on the second load data at the current moment, the net input power of the interconnection line, the minimum output of conventional units, the output of pumped-storage units and a preset function, obtain the maximum consumption space of the second new energy of the power system at the current moment, wherein the current moment is any moment within a preset time period, the preset function is used to characterize the startup state of the unit at the current moment, the maximum consumption space of the first new energy is the total new energy consumption space of the power system, and the second new energy consumption space is the space after removing the electric energy replacement The new energy consumption space of the power system after replacing the load; based on the wind power output, photovoltaic output and the first constraint condition at the current moment, the first new energy output maximization result of the power system at the current moment is obtained, and based on the wind power output, photovoltaic output and the second constraint condition at the current moment, the second new energy output maximization result of the power system at the current moment is obtained; based on the first new energy maximum consumption space and the first new energy output maximization result, the first new energy consumption result of the power system at the current moment is obtained, and based on the second new energy maximum consumption space and the second new energy output maximization result, the second new energy consumption result of the power system at the current moment is obtained; based on the preset time period, wind power output, photovoltaic output and the first new energy consumption result, the first abandoned power of the power system is obtained, and based on the preset time period, wind power output, photovoltaic output and the second new energy consumption result, the second abandoned power of the power system is obtained.

[0125] Furthermore, the first processing module is also used for: in response to the maximum absorption space of the first new energy being greater than or equal to the maximum output of the first new energy, determining the absorption result of the first new energy as the maximum output result of the first new energy, and in response to the maximum absorption space of the second new energy being greater than or equal to the maximum output of the second new energy, determining the absorption result of the second new energy as the maximum output result of the second new energy; in response to the maximum absorption space of the first new energy being less than the maximum output of the first new energy, determining the absorption result of the first new energy as the maximum absorption space of the first new energy, and in response to the maximum absorption space of the second new energy being less than the maximum output of the second new energy, determining the absorption result of the second new energy as the maximum absorption space of the second new energy.

[0126] Furthermore, the first processing module is also used to: obtain a first abandoned power power of the power system at the current moment based on the wind power output, the photovoltaic output and the first new energy consumption result, and obtain a second abandoned power power of the power system at the current moment based on the wind power output, the photovoltaic output and the second new energy consumption result; integrate the first abandoned power power according to a preset time period to obtain a first abandoned power amount of the power system, and integrate the second abandoned power power according to the preset time period to obtain a second abandoned power amount of the power system.

[0127] Furthermore, the second processing module is also used to: obtain the difference between the second amount of abandoned electricity and the first amount of abandoned electricity to obtain a first difference; in response to the first difference being greater than or equal to a preset value, determine that the quantitative evaluation result is that the electric energy substitution load has a boosting effect on the new energy in the preset area, and the gain value is the first difference; in response to the first difference being less than the preset value, determine that the quantitative evaluation result is that the electric energy substitution load has a reducing effect on the new energy in the preset area, and the reduction value is the first difference.

[0128] An embodiment of the present application further provides an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of the present invention when running.

[0129] An embodiment of the present application further provides a computer-readable storage medium, which includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the methods in various embodiments of the present invention.

[0130] An embodiment of the present application further provides a computer program product, including a computer program, which implements the methods in various embodiments of the present invention when executed by a processor.

[0131] An embodiment of the present application further provides a computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0132] The embodiments of the present application further provide a computer program, which implements the methods in the above-mentioned embodiments of the present invention when executed by a processor.

[0133] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0135] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0136] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0137] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0138] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A quantitative evaluation method for the new energy consumption capacity of electric energy replacement load, characterized in that: include: Obtaining grid operation data of a power system in a preset area, wherein the grid operation data at least includes: load data, power supply data and tie line data, the load data includes: first load data and second load data, the first load data is load data of the electric energy replacement load of the power system, the second load data is load data other than the first load data, and the grid operation data is used to evaluate the new energy consumption capacity of the power system; A first amount of abandoned power of the power system is obtained based on a preset time period, the load data, the power supply data and the tie line data, and a second amount of abandoned power of the power system is obtained based on the preset time period, the second load data, the power supply data and the tie line data, wherein the first amount of abandoned power is the total amount of abandoned power of the power system, and the second amount of abandoned power is the amount of abandoned power of the power system after removing the electric energy replacement load; Based on the first amount of abandoned electricity and the second amount of abandoned electricity, a quantitative assessment result of the new energy absorption capacity of the electric energy substitution load of the power system in the preset area is obtained, wherein the quantitative assessment result is used to characterize the gain value of the boosting effect or the reduction value of the reducing effect of the electric energy substitution load on the new energy in the preset area within the preset time period.

2. The method according to claim 1, characterized in that The method of obtaining a first amount of power abandonment of the power system based on a preset time period, the load data, the power supply data, and the tie line data, and obtaining a second amount of power abandonment of the power system based on the preset time period, the second load data, the power supply data, and the tie line data, comprises: constructing a first constraint condition of the power system based on the load data, the power supply data and the tie line data, and constructing a second constraint condition of the power system based on the second load data, the power supply data and the tie line data; A first amount of abandoned electricity of the power system is obtained based on the preset time period, the load data, the power supply data, the tie line data and the first constraint condition, and a second amount of abandoned electricity of the power system is obtained based on the preset time period, the second load data, the power supply data, the tie line data and the second constraint condition.

3. The method according to claim 2, characterized in that The power supply data at least includes: the output, maximum output and minimum output of the units of the power system, the ramp rate of the units of the power system, and the wind power output and photovoltaic output of the power system; the tie line data at least includes: the upper limit value and the lower limit value of the transmission capacity of the tie line; the first constraint condition of the power system is constructed based on the load data, the power supply data and the tie line data, and the second constraint condition of the power system is constructed based on the second load data, the power supply data and the tie line data, including: Based on the output of conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, the output of the pumped-storage units of the power system, the power of the tie line, and the load data, a first power balance constraint of the power system is constructed; and based on the output of conventional units of the power system, the wind power output of the power system, the photovoltaic output of the power system, the output of the pumped-storage units of the power system, the power of the tie line, and the second load data, a second power balance constraint of the power system is constructed; Based on the load data, the maximum output of the conventional unit, the processing of the conventional unit, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient, construct the spinning reserve capacity constraint of the power system; and based on the second load data, the maximum output of the conventional unit, the processing of the conventional unit, the positive spinning reserve of the power system, the negative spinning reserve of the power system, and the load spinning reserve coefficient, construct the spinning reserve capacity constraint of the power system; Based on the maximum wind power output of the power system and the maximum photovoltaic output of the power system, constructing a new energy output constraint of the power system; Based on the maximum output, minimum output, maximum up-slope rate and maximum down-slope rate of the conventional units, constructing the conventional unit operation constraints of the power system; Based on the maximum power generation power, minimum power generation power, maximum pumping power, minimum pumping power, maximum water storage capacity, minimum water storage capacity, pumping efficiency and power generation efficiency of the pumped-storage unit, constructing the operation constraints of the pumped-storage unit of the power system; Constructing a tie line power constraint of the power system based on an upper limit value and a lower limit value of a power transmission capacity of the tie line; The first power balance constraint, the rotating reserve capacity constraint, the new energy output constraint, the conventional unit operation constraint, the pumped storage unit operation constraint and the interconnection line power constraint are summarized to obtain the first constraint condition, and the second power balance constraint, the rotating reserve capacity constraint, the new energy output constraint, the conventional unit operation constraint, the pumped storage unit operation constraint and the interconnection line power constraint are summarized to obtain the second constraint condition.

4. The method according to claim 2, characterized in that: The power supply data at least includes: the wind power output, photovoltaic output, minimum output of conventional units and output of pumped storage units of the power system; the tie line data at least includes: net incoming power of the tie line; obtaining a first amount of abandoned power of the power system based on the preset time period, the load data, the power supply data, the tie line data and the first constraint condition, and obtaining a second amount of abandoned power of the power system based on the preset time period, the second load data, the power supply data, the tie line data and the second constraint condition, including: Based on the load data at the current moment, the net input power of the interconnection line, the minimum output of the conventional unit, the output of the pumped-storage unit and the preset function, the maximum consumption space of the first new energy of the power system at the current moment is obtained, and based on the second load data at the current moment, the net input power of the interconnection line, the minimum output of the conventional unit, the output of the pumped-storage unit and the preset function, the maximum consumption space of the second new energy of the power system at the current moment is obtained, wherein the current moment is any moment within the preset time period, the preset function is used to characterize the startup state of the unit at the current moment, the maximum consumption space of the first new energy is the total consumption space of the new energy of the power system, and the second consumption space of the new energy is the new energy consumption space of the power system after removing the electric energy replacement load; Based on the wind power output, the photovoltaic output and the first constraint condition at the current moment, a first renewable energy output maximization result of the power system at the current moment is obtained, and based on the wind power output, the photovoltaic output and the second constraint condition at the current moment, a second renewable energy output maximization result of the power system at the current moment is obtained; Based on the maximum consumption space of the first new energy and the maximum output result of the first new energy, a first new energy consumption result of the power system at the current moment is obtained, and based on the maximum consumption space of the second new energy and the maximum output result of the second new energy, a second new energy consumption result of the power system at the current moment is obtained; Based on the preset time period, the wind power output, the photovoltaic output and the first new energy consumption result, the first amount of abandoned power of the power system is obtained, and based on the preset time period, the wind power output, the photovoltaic output and the second new energy consumption result, the second amount of abandoned power of the power system is obtained.

5. The method according to claim 4, characterized in that Based on the maximum consumption space of the first new energy and the maximum output result of the first new energy, a first new energy consumption result of the power system at the current moment is obtained, and based on the maximum consumption space of the second new energy and the maximum output result of the second new energy, a second new energy consumption result of the power system at the current moment is obtained, including: In response to the maximum consumption space of the first new energy being greater than or equal to the maximum output of the first new energy, determining the first new energy consumption result as the maximum output result of the first new energy, and in response to the maximum consumption space of the second new energy being greater than or equal to the maximum output of the second new energy, determining the second new energy consumption result as the maximum output result of the second new energy; In response to the maximum absorption space of the first new energy being less than the maximum output of the first new energy, the absorption result of the first new energy is determined to be the maximum absorption space of the first new energy; and in response to the maximum absorption space of the second new energy being less than the maximum output of the second new energy, the absorption result of the second new energy is determined to be the maximum absorption space of the second new energy.

6. The method according to claim 4, characterized in that Based on the preset time period, the wind power output, the photovoltaic output and the first new energy consumption result, a first amount of abandoned power of the power system is obtained; and based on the preset time period, the wind power output, the photovoltaic output and the second new energy consumption result, a second amount of abandoned power of the power system is obtained, including: Based on the wind power output, the photovoltaic output and the first new energy consumption result, obtain the first power abandonment power of the power system at the current moment, and based on the wind power output, the photovoltaic output and the second new energy consumption result, obtain the second power abandonment power of the power system at the current moment; The first abandoned power is integrated according to the preset time period to obtain a first abandoned power amount of the power system, and the second abandoned power is integrated according to the preset time period to obtain a second abandoned power amount of the power system.

7. The method according to claim 1, characterized in that Based on the first amount of abandoned electricity and the second amount of abandoned electricity, a quantitative evaluation result of the new energy consumption capacity of the electric energy replacement load of the power system in the preset area is obtained, including: Obtaining a difference between the second amount of abandoned electricity and the first amount of abandoned electricity to obtain a first difference; In response to the first difference being greater than or equal to a preset value, determining that the quantitative evaluation result is that the electric energy replacement load has a boosting effect on the new energy in the preset area, and the gain value is the first difference; In response to the first difference being less than the preset value, it is determined that the quantitative evaluation result is that the electric energy substitution load has a reduction effect on the new energy in the preset area, and the reduction value is the first difference.

8. A quantitative evaluation device for the new energy consumption capacity of electric energy replacement load, characterized in that: include: An acquisition module, used to acquire grid operation data of a power system in a preset area, wherein the grid operation data at least includes: load data, power supply data and tie line data, the load data includes: first load data and second load data, the first load data is the load data of the electric energy replacement load of the power system, the second load data is the load data other than the first load data, and the grid operation data is used to evaluate the new energy consumption capacity of the power system; a first processing module, obtaining a first amount of abandoned electricity of the power system based on a preset time period, the load data, the power supply data and the tie line data, and obtaining a second amount of abandoned electricity of the power system based on the preset time period, the second load data, the power supply data and the tie line data, wherein the first amount of abandoned electricity is the total amount of abandoned electricity of the new energy of the power system, and the second amount of abandoned electricity is the amount of abandoned electricity of the new energy of the power system after removing the electric energy replacement load; The second processing module obtains a quantitative evaluation result of the new energy absorption capacity of the electric energy substitution load of the power system in the preset area based on the first abandoned electricity amount and the second abandoned electricity amount, wherein the quantitative evaluation result is used to characterize the gain value of the electric energy substitution load on the new energy in the preset area within the preset time period.

9. An electronic device, characterized in that: include: A memory storing an executable program; A processor, configured to run the program, wherein the program executes the method according to any one of claims 1 to 7 when running.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored executable program, wherein when the executable program is executed, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 7.

11. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 7.

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