A method and system for promoting economic dispatch of electric power to promote consumption of new energy

Abstract

The present disclosure provides a method and system for economic dispatch of electric power for promoting the consumption of new energy, which obtains electric power parameter data in a to-be-dispatched area; based on the obtained electric power parameter data, the objective function is to minimize the sum of the power purchase cost of the power grid in the to-be-dispatched area and the start-up and shutdown costs of controllable equipment in a preset area, and obtains an electric power dispatch strategy in the to-be-dispatched area; wherein the objective function at least includes the wind abandonment cost and the solar abandonment cost constructed in the form of a penalty function; the present disclosure takes into account the impact of the injection of new energy such as photovoltaic and wind power, takes the minimum total operating cost as the goal, and realizes the safe and economic consumption of new energy.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power system optimization and dispatching, and in particular to a power economic dispatching method and system for promoting the consumption of new energy. Background Art

[0002] The statements in this section merely provide background art related to the present disclosure and do not necessarily constitute prior art.

[0003] The proportion of renewable energy power generation is increasing year by year, but the forecast, grid connection, and consumption of renewable energy power generation have seriously restricted its development. In order to solve the problem of insufficient consumption capacity of traditional distribution network, China mainly adopts comprehensive energy system optimization and dispatching to effectively increase the proportion of renewable energy consumption and improve the stability of system operation.

[0004] However, the inventors found that most of the existing power dispatching systems do not effectively consider the impact of user demand response, and the existing power dispatching strategies do not take into account the impact of new energy injection such as photovoltaic and wind power, and cannot achieve a balance between new energy consumption and dispatching safety performance. Summary of the invention

[0005] In order to address the deficiencies of the prior art, the present disclosure provides an electric power economic dispatch method and system for promoting the consumption of new energy, taking into account the impact of the injection of new energy such as photovoltaic and wind power, with the goal of minimizing the total operating cost, thereby achieving safe and economic consumption of new energy.

[0006] In order to achieve the above objectives, the present disclosure adopts the following technical solutions:

[0007] A first aspect of the present disclosure provides an electric power economic dispatch method for promoting the consumption of new energy.

[0008] A method for economic dispatching of electric power to promote consumption of new energy sources includes the following steps:

[0009] Obtaining power parameter data in the area to be dispatched;

[0010] According to the acquired power parameter data, the power dispatch strategy in the area to be dispatched is obtained by taking the minimum sum of the power purchase cost of the power grid in the area to be dispatched and the start-stop cost of the controllable equipment in the preset area as the objective function;

[0011] Among them, the objective function at least includes the wind power abandonment cost and the solar power abandonment cost constructed in the form of penalty function.

[0012] Furthermore, the area to be dispatched uses photovoltaic power generation and wind power generation, while exchanging power with the upper-level power grid to supply the power load in the area.

[0013] Furthermore, electric boilers are used in the area to be dispatched to convert electrical energy into thermal energy for heating, and each user in the area to be dispatched participates in demand response by means of transferable loads or load interruptions.

[0014] Furthermore, the transferable load participates in demand response in the following ways: linking the transfer rate of the transferable load with the electricity price difference; when the electricity price difference is extremely small, the load does not transfer; when the electricity price difference exceeds the dead zone, the load transfer rate increases linearly; when the electricity price difference reaches saturation, the load transfer rate stabilizes at the maximum value and no longer changes.

[0015] Furthermore, the objective function also includes the startup cost of the electric boilers in the area to be dispatched, the shutdown cost of the electric boilers, and the compensation cost of the interruptible loads.

[0016] Furthermore, the objective function includes power exchange constraints with the upper power grid, electric boiler constraints, energy balance constraints and load constraints.

[0017] Furthermore, the load constraint is that the demand side response electric load is less than the current maximum allowable electric load.

[0018] A second aspect of the present disclosure provides an electric power economic dispatching system for promoting the consumption of new energy.

[0019] An electric power economic dispatching system for promoting the consumption of new energy, comprising:

[0020] The data acquisition module is configured to: acquire power parameter data in the area to be dispatched;

[0021] The power dispatching module is configured to: obtain the power dispatching strategy in the area to be dispatched based on the acquired power parameter data and taking the minimum sum of the power purchase cost of the power grid in the area to be dispatched and the start-stop cost of the controllable equipment in the preset area as the objective function;

[0022] Among them, the objective function at least includes the wind power abandonment cost and the solar power abandonment cost constructed in the form of penalty function.

[0023] The third aspect of the present disclosure provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the steps in the method for economic dispatch of electricity to promote the consumption of new energy as described in the first aspect of the present disclosure.

[0024] The fourth aspect of the present disclosure provides an electronic device, including a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the steps in the method for economic dispatch of electricity to promote the consumption of new energy as described in the first aspect of the present disclosure are implemented.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. The dispatching method, system, medium or electronic device disclosed in the present invention takes into account the impact of the injection of new energy such as photovoltaic and wind power, takes the minimum total operating cost as the goal, and realizes the safe and economical absorption of new energy.

[0027] 2. The dispatching method, system, medium or electronic device described in the present disclosure uses electric boilers to convert electrical energy into thermal energy for heating in the area to be dispatched, and each user in the area to be dispatched participates in demand response by means of transferable loads or load interruptions, so as to achieve the purpose of promoting the consumption of new energy.

[0028] 3. The dispatching method, system, medium or electronic device disclosed in the present invention increases the proportion of new energy consumption after users respond to demand while reducing the total operating cost in the area to be dispatched. Combined with various constraints, it achieves balanced control of new energy consumption and dispatching safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure.

[0030] Figure 1 A flow chart of the method for economic dispatching of electricity to promote the consumption of new energy provided in Example 1 of the present disclosure. DETAILED DESCRIPTION

[0031] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present disclosure. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present disclosure belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In the absence of conflict, the embodiments in the present disclosure and the features in the embodiments may be combined with each other.

[0035] Embodiment 1:

[0036] like Figure 1 As shown, Embodiment 1 of the present disclosure provides an economic dispatch method for promoting new energy consumption, including the following process:

[0037] Obtaining power parameter data in the area to be dispatched;

[0038] According to the acquired power parameter data, the objective function is to minimize the sum of the power purchase cost of the power grid in the area to be dispatched and the start-up and shutdown costs of the controllable equipment in the preset area, and then the power dispatch strategy in the area to be dispatched is obtained.

[0039] Specifically, the process includes the following:

[0040] S1: Characteristics analysis of power load side

[0041] S1.1: Demand-side load classification

[0042] Conventionally, many demand-side loads are not affected by electricity prices or load fluctuations, such as lighting loads, computers and other household loads. Such loads cannot be intervened and are called "uncontrollable loads". At the same time, demand-side responsive loads are divided into transferable loads and interruptible loads, which are "controllable loads".

[0043] Transferable load refers to the load that users can flexibly control when to use, transferring the load to the off-peak period during peak hours while ensuring that the power consumption remains unchanged before and after the transfer, such as household loads such as washing machines and energy storage loads such as electric vehicles. According to the response model based on consumer psychology, the transfer rate of transferable load is linked to the electricity price difference. When the electricity price difference is extremely small, the load does not transfer; when the electricity price difference exceeds the dead zone, the load transfer rate increases linearly, and when the electricity price difference reaches saturation, the load transfer rate stabilizes at the maximum value and no longer changes. The transfer load power in time period t is obtained as:

[0044]

[0045] Among them, P t E,0 , P t E,trans are the load power before and after the transfer in period t; fg , pg , fp They are the load transfer rates in the peak-valley, flat-valley, and peak-flat time periods respectively; are the average power during the peak period before transfer and the average power during the normal period; T g 、T p 、T f They are represented as valley, flat and peak time periods respectively.

[0046] Interruptible load mainly refers to the power supply unit's right to cut off part or all of the load during peak power consumption through a compensation mechanism to achieve the purpose of promoting the consumption of new energy. In a typical interruptible load power curve, ρ is the load interruption ratio; t1, t2, and t3 are the load shedding time, power supply time, and load recovery time, respectively. It can be seen from the curve that the interruptible load can actively or passively withdraw from power consumption during peak power consumption, but when the maximum interruptible time is reached, the load must be restarted and a certain startup time is required.

[0047] S1.2: Demand response mode

[0048] Demand response refers to users changing their electricity usage habits based on electricity price policies, electricity prices and other factors to promote the consumption of new energy and maintain the stability of grid operation.

[0049] According to the different nature of the response signal, the demand response model is mainly divided into incentive-based and price-based. The price-based demand response model is for users to change their electricity consumption habits according to the guidance of electricity prices, which are usually divided into three types: time-of-use electricity prices, peak electricity prices and real-time electricity prices.

[0050] Incentive-based demand response allows load aggregators to dynamically adjust loads based on the supply and demand of the power system, and users can receive certain compensation when they lose charge. Incentive-based demand response can be divided into direct load control and interruptible load according to the user's power consumption capacity; emergency demand response is used when the power load drops suddenly; the demand-side bidding model is used when bidding; and other auxiliary services are also included. When the smart community is dispatching electricity, it considers the predicted values ​​of wind power and photovoltaic power generation in the t period and the user's power consumption, signs a bidding contract with the power grid company, and refers to the classic newsboy problem model. When the new energy power generation is greater than the bid amount k, the new energy power generator shall When the amount of new energy tendered cannot meet the electricity demand, The current market price is set to m is the actual renewable energy power generation, including wind power generation and photovoltaic power generation, and renewable energy power generation does not include energy storage devices. The current benefit function of the exchange with the upper power grid can be expressed as:

[0051]

[0052] in, is the cost of electricity purchased by the community from the superior power grid during period t; is the revenue from electricity sales from the community to the superior power grid during period t.

[0053] S1.3: New energy consumption model

[0054] The new energy consumption mode is mainly considered from four levels: based on the geographical level, in addition to transmitting a large amount of new energy power generation to the eastern areas with high electricity demand through ultra-high voltage transmission, local consumption can also be achieved through demand response. This embodiment mainly adopts the method of local consumption of new energy; based on the time level, the day-ahead market and the intraday market can be controlled to promote the consumption of new energy; according to different response signals, the demand can be divided into incentive type and price type; at the load level, different consumption modes can be adopted for large industrial loads and small household loads.

[0055] S2: Construction of economic dispatch model for smart communities to promote new energy consumption

[0056] Smart communities use photovoltaic and wind power generation, and exchange power with the upper grid to supply users with electricity. At the same time, electric boilers are used in the community to convert electrical energy into thermal energy for heating. Users in the community participate in demand response by transferring or interrupting loads, so as to achieve the purpose of promoting the consumption of new energy.

[0057] S2.1: Objective Function

[0058] The economic dispatch model of the smart community aims to minimize the sum of the cost of purchasing electricity from the community and the upper power grid and the cost of starting and stopping the controllable equipment in the community. At the same time, it considers the imbalance between renewable energy generation and power load and the compensation cost of interruptible load, and adds factors such as wind abandonment and solar abandonment to the objective function in the form of penalty function. The start-stop cost of the controllable equipment is processed with linear inequality constraints, that is:

[0059]

[0060] Among them, N t is the total scheduling time; is the wind curtailment cost in period t; is the cost of abandoned light in period t; is the startup cost of the pth electric boiler in period t; N is the shutdown cost of the pth electric boiler in period t; EB is the number of electric boilers in the community; is the compensation cost of the interruptible load in period t. For each item in formula (3), it is described as:

[0061]

[0062]

[0063]

[0064]

[0065]

[0066]

[0067]

[0068] in, are the unit electricity purchase and sales prices in period t respectively; P t E,in , P t E,out are the purchased and sold power in period t respectively; are the unit wind and solar curtailment penalty costs in period t respectively; is the abandoned wind power of the i-th wind turbine in period t, is the abandoned power of the jth photovoltaic panel in period t; Reflects the start and stop status of the electric boiler. When the value is 1, the electric boiler is started, and when the value is 0, it means the electric boiler is shut down; are the cost of starting and stopping the pth electric boiler at a time; is the compensation cost of interruptible load in period t; P t DR,inte is the total load of the interruptible load in period t.

[0069] S2.2: Constraints

[0070] (1) Power exchange constraints with the upper power grid

[0071] P t E,in,min ≤P t E,in ≤P t E,in,max (11)

[0072] P t E,out,min ≤P t E,out ≤P t E,out,max (12)

[0073] Where P t E,in,min , P t E,in,max , P t E,out,min , P t E,out,max Expressed as minimum and maximum purchased and sold power.

[0074] (2) Electric boiler constraints

[0075] The energy conversion and constraints of the electric boiler can be expressed as:

[0076]

[0077]

[0078]

[0079]

[0080] in, is the heat output of the pth electric boiler in period t; is the energy conversion efficiency of the pth station. They respectively represent the minimum start and stop time of the pth electric boiler in period t.

[0081] (3) Wind turbine model

[0082] The output power of a wind turbine can be expressed as follows:

[0083]

[0084] in, is the output power of the i-th wind turbine in time period t; P i WT,b is the rated power of the i-th fan; are the actual wind speed, cut-in wind speed, cut-out wind speed and rated wind speed of the i-th wind turbine respectively.

[0085] (4) Photovoltaic cell model

[0086] Theoretically, the output power of photovoltaic cells is only affected by illumination and environmental factors, which can be expressed as:

[0087]

[0088] In the formula, They represent the output power of the jth group of photovoltaic cells in time period t respectively; is the output electrical power of group j under standard test conditions; represents the illumination of the jth group in time period t; G stc is the illuminance under standard conditions; k T is the temperature coefficient; is the temperature of the jth group in time period t; T r is the ambient temperature at that time.

[0089] (5) Energy balance constraints

[0090] The economic dispatch model should ensure the balance of electric energy, that is:

[0091]

[0092] (6) Load constraints

[0093] According to load classification, the demand-side response load should be less than the current maximum allowable load, that is:

[0094] P t DR =P t DR,inte +P t DR,trans (20)

[0095]

[0096]

[0097]

[0098]

[0099]

[0100]

[0101] Among them, P t DR is the demand side response electric load in period t; is the maximum interruptible load ratio and the maximum transferable load ratio in period t; is the predicted value of electric load in period t; is the maximum electrical load during the period t; α P is the maximum charge loss ratio.

[0102] (7) Solution strategy

[0103] Through the objective functions and various constraints mentioned above, an economic dispatch model to promote the consumption of new energy is constructed, which achieves overall economic optimization and safe consumption of new energy.

[0104] It can be found that the model proposed in this embodiment is a mixed integer linear programming problem. For such problems, it can be solved efficiently based on the Matlab platform by combining commercial solvers such as Yalmip, Gruobi or Cplex. Of course, it can also be solved by combining interior point method and rounding strategy, etc., which will not be described in detail here.

[0105] S3: Operation cost analysis.

[0106] (1) Simulation data selection

[0107] The parameters of the electric boiler equipment are shown in Table 1. The initial peak, valley and flat period division and time-of-use electricity price are shown in Table 2. It can be obtained that the load transfer rate is λ fg =0.045,λ pg =0.036, λ fp =0.011. In addition, the total scheduling time N t =24, The maximum and minimum values ​​of power exchanged with the upper grid are P t E,in,min =0, P t E,in,max =800kW, P t E,out,min =0, P t E,out,max =100kW, the maximum power failure load ratio is 0.1.

[0108] Based on the Matlab2014 platform, the solution is obtained using the Gruobi solver.

[0109] Table 1 Electric boiler equipment parameters

[0110]

[0111] Table 2 Initial peak, valley and average period and electricity price

[0112]

[0113] (2) Operation cost analysis under different operation modes

[0114] In order to comprehensively consider the impact of wind and solar power abandonment and load-side demand response on the dispatch model, this example selects two different dispatch operation modes for analysis. The total cost of each operation mode is shown in Table 3.

[0115] In Method 1, the electric boiler is on 24 hours a day, and there is no wind or solar power abandonment. Method 2 is based on Method 1 and considers that users respond according to the price difference of electricity in different time periods, such as transferring loads in the off-peak period, and the new energy consumption is 94.28%. Compared with the new energy consumption ratio of 86.73% when there is no demand response in Method 1, it can be obtained that after the users of Method 2 respond, the new energy consumption ratio increases from 86.73% to 94.28%, an increase of 7.55%. Therefore, the demand response on the user side achieves the purpose of new energy consumption.

[0116] Table 3: Operation cost of the community under different operation modes (unit: yuan)

[0117]

[0118] Comparing Method 1 and Method 2, Method 2 will be able to respond to the interruption or transfer of electricity load during peak hours, and transfer in during valley hours of electricity prices, and transfer in or out according to the system operation conditions during normal electricity price periods. It can reasonably allocate new energy, better absorb new energy and reduce the total operating cost.

[0119] S4: Ways to promote the absorption capacity of new power sources

[0120] In order to study the impact of user demand response on the economic dispatch of the system, this embodiment proposes an economic dispatch model with the total operating cost of the smart community as the target. At the same time, users respond to promote the consumption of new energy. The example shows that after users respond to demand, the proportion of new energy consumption is increased while the total operating cost of the community is reduced.

[0121] Embodiment 2:

[0122] Embodiment 2 of the present disclosure provides an electric power economic dispatching system for promoting the consumption of new energy, including:

[0123] The data acquisition module is configured to: acquire power parameter data in the area to be dispatched;

[0124] The power dispatching module is configured to: obtain the power dispatching strategy in the area to be dispatched based on the acquired power parameter data and taking the minimum sum of the power purchase cost of the power grid in the area to be dispatched and the start-stop cost of the controllable equipment in the preset area as the objective function;

[0125] Among them, the objective function at least includes the wind power abandonment cost and the solar power abandonment cost constructed in the form of penalty function.

[0126] The working method of the system is the same as the power economic dispatch method for promoting the consumption of new energy provided in Example 1, and will not be repeated here.

[0127] Embodiment 3:

[0128] Embodiment 3 of the present disclosure provides a computer-readable storage medium having a program stored thereon. When the program is executed by a processor, the steps in the method for economic dispatch of electricity to promote the consumption of new energy as described in Embodiment 3 of the present disclosure are implemented.

[0129] Embodiment 4:

[0130] Embodiment 4 of the present disclosure provides an electronic device, including a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the steps in the method for economic dispatch of electricity to promote the consumption of new energy as described in Embodiment 1 of the present disclosure are implemented.

[0131] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0132] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0133] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0134] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0135] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM).

[0136] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A method for economic dispatching of electric power to promote the consumption of new energy, characterized by: The process includes: Obtain the power parameter data in the area to be dispatched; the area to be dispatched uses photovoltaic power generation and wind power generation, while exchanging power with the upper-level power grid to supply the power load in the area; When the smart community conducts power dispatch, it considers the predicted values ​​of wind power generation and photovoltaic power generation in the t period and the power consumption of users, signs a bidding contract with the power grid company, and refers to the classic newsboy problem model. When the new energy power generation is greater than the bid amount k, the new energy power generator shall When the amount of new energy tendered cannot meet the electricity demand, The current market price is set to m is the actual renewable energy power generation, including wind power generation and photovoltaic power generation, and renewable energy power generation does not include energy storage devices. The current benefit function for exchanging with the upper power grid is expressed as: in, is the cost of electricity purchased by the community from the superior power grid during period t; is the revenue from electricity sales from the community to the superior power grid during period t; According to the acquired power parameter data, the power dispatch strategy in the area to be dispatched is obtained by taking the minimum sum of the power purchase cost of the power grid in the area to be dispatched and the start-stop cost of the controllable equipment in the preset area as the objective function; The objective function at least includes the wind abandonment cost and solar abandonment cost constructed in the form of penalty function; The start-stop cost of controllable equipment is processed with linear inequality constraints, namely: Among them, N t is the total scheduling time; is the wind curtailment cost in period t; is the cost of abandoned light in period t; is the startup cost of the pth electric boiler in period t; N is the shutdown cost of the pth electric boiler in period t; EB is the number of electric boilers in the community; is the compensation cost of the interruptible load during period t; C t E,inte =c t E,inte ρP t DR,inte Δt; in, are the unit electricity purchase and sales prices in period t respectively; P t E,in , P t E,out are the power purchased and sold during period t respectively; are the unit wind and solar curtailment penalty costs in period t respectively; is the abandoned wind power of the i-th wind turbine in period t, is the abandoned power of the jth photovoltaic panel in period t; Reflects the start and stop status of the electric boiler. When the value is 1, the electric boiler is started, and when the value is 0, it means the electric boiler is shut down; are the cost of starting and stopping the pth electric boiler at a time; is the compensation cost of interruptible load in period t; P t DR,inte is the total load of the interruptible load in period t; Energy balance constraint, the economic dispatch model should ensure the balance of electric energy, that is: Load constraint: According to load classification, the demand-side response load should be less than the current maximum allowable load, that is: P t DR =P t DR,inte +P t DR,trans ; Among them, P t DR is the demand side response electric load in period t; is the maximum interruptible load ratio and the maximum transferable load ratio in period t; is the predicted value of electric load in period t; P t LD,max is the maximum electrical load during the period t; α P is the maximum charge loss ratio; Through the objective functions and various constraints mentioned above, an economic dispatch model to promote the consumption of new energy is constructed, which achieves overall economic optimization and safe consumption of new energy.

2. The method for economic dispatching of electric power to promote the consumption of new energy as claimed in claim 1, characterized in that: Electric boilers are used in the area to be dispatched to convert electrical energy into thermal energy for heating, and each user in the area to be dispatched participates in demand response by transferring loads or interrupting loads.

3. The method for economic dispatching of electric power to promote the consumption of new energy as claimed in claim 2, characterized in that: Participating in demand response in a transferable load manner includes: establishing a link between the transfer rate of the transferable load and the electricity price difference. When the electricity price difference is extremely small, the load does not transfer. When the electricity price difference exceeds the dead zone, the load transfer rate increases linearly. When the electricity price difference reaches saturation, the load transfer rate stabilizes at the maximum value and no longer changes.

4. The method for economic dispatching of electric power to promote the consumption of new energy as claimed in claim 1, characterized in that: The objective function also includes the startup cost of the electric boilers in the area to be dispatched, the shutdown cost of the electric boilers, and the compensation cost of the interruptible load.

5. The method for economic dispatching of electric power to promote the consumption of new energy as claimed in claim 1, characterized in that: The objective function includes power exchange constraints with the upper power grid, electric boiler constraints, energy balance constraints and load constraints.

6. The method for economic dispatching of electric power to promote the consumption of new energy as claimed in claim 5, characterized in that: The load constraint is: the demand side response electric load is less than the current maximum allowable electric load.

7. An electric power economic dispatching system for promoting the consumption of new energy, characterized by: include: The data acquisition module is configured to: acquire power parameter data in the area to be dispatched; The area to be dispatched uses photovoltaic and wind power generation, while exchanging power with the upper-level power grid to supply the power load in the area; When the smart community conducts power dispatch, it considers the predicted values ​​of wind power generation and photovoltaic power generation in the t period and the power consumption of users, signs a bidding contract with the power grid company, and refers to the classic newsboy problem model. When the new energy power generation is greater than the bid amount k, the new energy power generator shall When the amount of new energy tendered cannot meet the electricity demand, The current market price is set to m is the actual renewable energy power generation, including wind power generation and photovoltaic power generation, and renewable energy power generation does not include energy storage devices. The current benefit function for exchanging with the upper power grid is expressed as: in, is the cost of electricity purchased by the community from the superior power grid during period t; is the revenue from electricity sales from the community to the superior power grid during period t; The power dispatching module is configured to: obtain the power dispatching strategy in the area to be dispatched based on the acquired power parameter data and taking the minimum sum of the power purchase cost of the power grid in the area to be dispatched and the start-stop cost of the controllable equipment in the preset area as the objective function; The objective function at least includes the wind abandonment cost and solar abandonment cost constructed in the form of penalty function; The start-stop cost of controllable equipment is processed with linear inequality constraints, namely: Among them, N t is the total scheduling time; is the wind curtailment cost in period t; is the cost of abandoned light in period t; is the startup cost of the pth electric boiler in period t; N is the shutdown cost of the pth electric boiler in period t; EB is the number of electric boilers in the community; is the compensation cost of the interruptible load during period t; in, are the unit electricity purchase and sales prices in period t respectively; P t E,in , P t E,out are the power purchased and sold during period t respectively; are the unit wind and solar curtailment penalty costs in period t respectively; is the abandoned wind power of the i-th wind turbine in period t, is the abandoned power of the jth photovoltaic panel in period t; Reflects the start and stop status of the electric boiler. When the value is 1, the electric boiler is started, and when the value is 0, it means the electric boiler is shut down; are the cost of starting and stopping the pth electric boiler at a time; is the compensation cost of interruptible load in period t; P t DR,inte is the total load of the interruptible load in period t; Energy balance constraint, the economic dispatch model should ensure the balance of electric energy, that is: Load constraint: According to load classification, the demand-side response load should be less than the current maximum allowable load, that is: P t DR =P t DR,inte +P t DR,trans ; Among them, P t DR is the demand side response electric load in period t; is the maximum interruptible load ratio and the maximum transferable load ratio in period t; is the predicted value of electric load in period t; P t LD,max is the maximum electrical load during the period t; α P is the maximum charge loss ratio; Through the objective functions and various constraints mentioned above, an economic dispatch model to promote the consumption of new energy is constructed, which achieves overall economic optimization and safe consumption of new energy.

8. A computer-readable storage medium having a program stored thereon, characterized in that: When the program is executed by a processor, the steps in the method for economic dispatching of electricity to promote the consumption of new energy are implemented as described in any one of claims 1 to 6.

9. An electronic device comprising a memory, a processor, and a program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the power economic dispatch method for promoting the consumption of new energy are implemented as described in any one of claims 1-6.

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