Method and device for determining output power of generator set based on carbon emissions

Abstract

The present application relates to a method for determining the output power of a generator set based on carbon emissions. The method comprises: obtaining the power generation parameters corresponding to the generator set for each time period to be determined, and constructing the power generation constraints corresponding to the power generation based on the power generation parameters; constructing the first corresponding relationship between the power generation resource consumption and the power generation, the second corresponding relationship between the carbon emission resource consumption and the power generation, the third corresponding relationship between the carbon emission quota usage progress balance value and the power generation, and the fourth corresponding relationship between the cross-section current limit and the power generation according to the power generation parameters; based on the above corresponding relationships, when the power generation satisfies the power generation constraint, the power generation of the generator set is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress balance value, and the minimum cross-section current limit as the solution target. The use of this method can more reasonably determine the power generation of the generator set.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a method, device, computer equipment, storage medium and computer program product for determining the output power of a generator set based on carbon emissions. Background Art

[0002] With the development of the field of electric power technology, a method for determining the output power of a generator set has emerged. This method determines the output power of each generator set by the power generation cost.

[0003] In the above technical scheme, only the power generation cost is considered, which may cause the units with less carbon emissions to generate less electricity, while the units with more carbon emissions generate more electricity. There is a possibility that the carbon emission quota will be exhausted ahead of schedule, causing the power generation company to face the risk of exceeding the carbon emission standard, thereby causing the determined output power of the generator set to be unreasonable. Summary of the invention

[0004] Based on this, it is necessary to provide a method, device, computer equipment, computer-readable storage medium and computer program product for determining the output power of a generator set based on carbon emissions, which can more reasonably determine the output power of the generator set in response to the above technical problems.

[0005] In a first aspect, the present application provides a method for determining the output power of a generator set based on carbon emissions.

[0006] The method comprises:

[0007] Acquire power generation parameters corresponding to the power generation groups of the power generation to be determined in each time period, and construct power generation constraints corresponding to the power generation based on the power generation parameters;

[0008] According to the power generation parameters, a first correspondence relationship between the power generation resource consumption of the power generation set and the power generation is established, a second correspondence relationship between the carbon emission resource consumption of the power generation set and the power generation is established, a third correspondence relationship between the carbon emission quota use progress equilibrium value of the power generation enterprise and the power generation is established, and a fourth correspondence relationship between the cross-sectional power flow exceeding limit of the power generation set and the power generation is established;

[0009] Based on the first correspondence, the second correspondence, the third correspondence and the fourth correspondence, when the power generation meets the power generation constraint, the power generation of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission usage progress equilibrium value and the minimum section flow over-limit as the solution goals.

[0010] In one embodiment, the power generation parameters include: the unit carbon emissions corresponding to each unit power when the generator set is operating in each time period, and the unit resource consumption corresponding to each unit carbon emissions; the construction of the second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation power includes: obtaining the carbon emissions corresponding to the generator set when it is operating in each time period according to the unit carbon emissions; obtaining the product of the carbon emissions and the unit resource consumption; and obtaining the second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation power based on the product.

[0011] In one embodiment, the power generation parameters include: the used carbon emission quota of the power generation enterprise, the total carbon emission quota of the power generation enterprise, and the penalty value for the deviation of the utilization rate of the total carbon emission quota of the power generation enterprise; the construction of the third corresponding relationship between the carbon emission quota utilization progress balance value of the power generation enterprise and the power generation power includes: based on the corresponding carbon emissions of the generator set when operating in each time period, obtaining the total carbon emissions corresponding to the generator set; adding the total carbon emissions to the used carbon emission quota of the power generation enterprise to obtain the current used carbon emission quota of the power generation enterprise; based on the ratio between the current used carbon emission quota and the total carbon emission quota, and the penalty value for the deviation of the utilization rate of the total carbon emission quota, obtaining the third corresponding relationship between the carbon emission quota utilization progress balance value of the power generation enterprise and the power generation power.

[0012] In one of the embodiments, the power generation parameters include: the startup resource consumption of the generator set in each time period; the construction of the first corresponding relationship between the power generation resource consumption of the generator set and the power generation power includes: obtaining the corresponding operating resource consumption when the generator set is operating in each time period; according to the startup resource consumption and the operating resource consumption, obtaining the first corresponding relationship between the power generation resource consumption of the generator set and the power generation power.

[0013] In one of the embodiments, obtaining the corresponding operating resource consumption when the generator set is operating in each time period includes: obtaining the corresponding relationship between the generated power and the operating resource consumption; based on the corresponding relationship, obtaining the corresponding operating resource consumption when the generator set is operating in each time period.

[0014] In one embodiment, the power generation parameters include: a sectional flow constraint relaxation penalty factor of the generator set; constructing a fourth corresponding relationship between the sectional flow exceeding the limit and the power generation power of the generator set includes: obtaining a forward flow relaxation variable and a reverse flow relaxation variable corresponding to the generator set; based on the sectional flow constraint relaxation penalty factor, the forward flow relaxation variable and the reverse flow relaxation variable, obtaining a fourth corresponding relationship between the sectional flow exceeding the limit and the power generation power of the generator set.

[0015] In a second aspect, the present application also provides a device for determining the output power of a generator set based on carbon emissions. The device comprises:

[0016] A power generation constraint building module, used to obtain power generation parameters corresponding to the power generation sets of the power generation to be determined in each time period, and to build power generation constraints corresponding to the power generation based on the power generation parameters;

[0017] A corresponding relationship building module is used to build a first corresponding relationship between the power generation resource consumption of the power generation set and the power generation according to the power generation parameters, build a second corresponding relationship between the carbon emission resource consumption of the power generation set and the power generation, build a third corresponding relationship between the carbon emission quota use progress equilibrium value of the power generation enterprise and the power generation, and build a fourth corresponding relationship between the cross-section power flow limit of the power generation set and the power generation;

[0018] A power generation determination module is used to determine the power generation power of the generator set in each time period based on the first corresponding relationship, the second corresponding relationship, the third corresponding relationship and the fourth corresponding relationship, with the power generation satisfying the power generation constraint, taking the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress equilibrium value and the minimum section tidal flow exceeding limit as the solution objectives.

[0019] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0020] Acquire power generation parameters corresponding to the power generation groups of the power generation to be determined in each time period, and construct power generation constraints corresponding to the power generation based on the power generation parameters;

[0021] According to the power generation parameters, a first correspondence relationship between the power generation resource consumption of the power generation set and the power generation is established, a second correspondence relationship between the carbon emission resource consumption of the power generation set and the power generation is established, a third correspondence relationship between the carbon emission quota use progress equilibrium value of the power generation enterprise and the power generation is established, and a fourth correspondence relationship between the cross-sectional power flow exceeding limit of the power generation set and the power generation is established;

[0022] Based on the first correspondence, the second correspondence, the third correspondence and the fourth correspondence, when the power generation meets the power generation constraint, the power generation of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission usage progress equilibrium value and the minimum section flow over-limit as the solution goals.

[0023] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0024] Acquire power generation parameters corresponding to the power generation groups of the power generation to be determined in each time period, and construct power generation constraints corresponding to the power generation based on the power generation parameters;

[0025] According to the power generation parameters, a first correspondence relationship between the power generation resource consumption of the power generation set and the power generation is established, a second correspondence relationship between the carbon emission resource consumption of the power generation set and the power generation is established, a third correspondence relationship between the carbon emission quota use progress equilibrium value of the power generation enterprise and the power generation is established, and a fourth correspondence relationship between the cross-sectional power flow exceeding limit of the power generation set and the power generation is established;

[0026] Based on the first correspondence, the second correspondence, the third correspondence and the fourth correspondence, when the power generation meets the power generation constraint, the power generation of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission usage progress equilibrium value and the minimum section flow over-limit as the solution goals.

[0027] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0028] Acquire power generation parameters corresponding to the power generation groups of the power generation to be determined in each time period, and construct power generation constraints corresponding to the power generation based on the power generation parameters;

[0029] According to the power generation parameters, a first correspondence relationship between the power generation resource consumption of the power generation set and the power generation is established, a second correspondence relationship between the carbon emission resource consumption of the power generation set and the power generation is established, a third correspondence relationship between the carbon emission quota use progress equilibrium value of the power generation enterprise and the power generation is established, and a fourth correspondence relationship between the cross-sectional power flow exceeding limit of the power generation set and the power generation is established;

[0030] Based on the first correspondence, the second correspondence, the third correspondence and the fourth correspondence, when the power generation meets the power generation constraint, the power generation of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission usage progress equilibrium value and the minimum section flow over-limit as the solution goals.

[0031] The above-mentioned method, device, computer equipment, storage medium and computer program product for determining the output power of a generator set based on carbon emissions obtain the power generation parameters corresponding to the generator set whose power generation in each time period is to be determined, and construct the power generation constraints corresponding to the power generation based on the power generation parameters; construct a first corresponding relationship between the power generation resource consumption of the generator set and the power generation according to the power generation parameters, construct a second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation, construct a third corresponding relationship between the carbon emission quota usage progress equilibrium value of the power generation enterprise and the power generation, and construct a fourth corresponding relationship between the cross-sectional current limit and the power generation of the generator set; based on the first corresponding relationship, the second corresponding relationship, the third corresponding relationship and the fourth corresponding relationship, when the power generation meets the power generation constraints, the power generation of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress equilibrium value and the minimum cross-sectional current limit as the solution goals. This application obtains the power generation parameters corresponding to the generator set, and constructs the power generation constraints based on the power generation parameters, and then constructs the corresponding relationship between the power generation and the power generation resource consumption, carbon emission resource consumption, carbon emission quota usage progress balance value and cross-section current limit. Based on the corresponding relationship and the power generation constraints, the power generation of the generator set in each time period is determined with the goal of minimizing the power generation resource consumption, minimizing the carbon emission resource consumption, minimizing the carbon emission quota usage progress balance value and minimizing the cross-section current limit. This method can more reasonably determine the power generation of the generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a flow chart of a method for determining the output power of a generator set based on carbon emissions in one embodiment;

[0033] Figure 2 A schematic diagram of a process of constructing a second corresponding relationship in an embodiment;

[0034] Figure 3 A schematic diagram of a process for constructing a third corresponding relationship in an embodiment;

[0035] Figure 4 A schematic diagram of a process of constructing a first corresponding relationship in an embodiment;

[0036] Figure 5 is a structural block diagram of a device for determining output power of a generator set based on carbon emissions in one embodiment;

[0037] Figure 6 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that the terms "first\second" involved in the embodiments of the present invention are only used to distinguish similar objects, and do not represent a specific order for the objects. It is understandable that "first\second" can be interchanged with a specific order or sequence where permitted. It should be understood that the objects distinguished by "first\second" 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.

[0040] In one embodiment, Figure 1 As shown, a method for determining the output power of a generator set based on carbon emissions is provided. This embodiment uses the method applied to a terminal as an example. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0041] Step S101, obtaining power generation parameters corresponding to the power generation groups whose power generation powers are to be determined in each time period, and constructing power generation constraints corresponding to the power generation powers based on the power generation parameters.

[0042] Among them, the generator set is the power generation device of the power plant, and the generator set can be a coal generator set, a natural gas generator set, a hydroelectric generator set, a wind power generator set, a photovoltaic generator set, etc., and the power generation is the size of the power generation of the generator set. As for each time period, each day is divided into multiple identical time periods. Then, the power generation parameters are parameters related to the power generation of the generator set. For example, the power generation parameters can be the number of the above-mentioned time periods, the number of generator sets, the operating costs of the generator sets in each time period, the startup costs and carbon emission intensity, the carbon emission price per unit, the carbon emissions used by the power generation enterprise, the annual carbon emission quota of the power generation enterprise, the positive and reverse power flow slack variables of the generator set, the system load of the generator set, the positive spare capacity requirements of the generator set, the number of starts and stops of the generator set per day, etc. Finally, the power generation constraint is the corresponding equation or inequality between the power generation and the power generation parameter, and the power generation constraint is used to constrain the power generation.

[0043] Specifically, a preset power generation parameter is obtained, and based on the power generation parameter, a power generation constraint corresponding to the power generation power is constructed. For example, the power generation constraint may be a load balance constraint of a generator set. For each time period t, the load balance constraint may be described as: Among them, P i,t represents the power generation of unit i in time period t, T j,t represents the planned power of tie line j in time period t (input is positive, output is negative), NT is the total number of tie lines, D t is the system load. At the same time, the power generation constraint can also be a positive reserve capacity constraint, a negative reserve capacity constraint, a power generation upper and lower limit constraint, a generator set start and stop times constraint, and a section flow constraint.

[0044] Step S102, based on the power generation parameters, construct a first correspondence between the power generation resource consumption of the power generation unit and the power generation, construct a second correspondence between the carbon emission resource consumption of the power generation unit and the power generation, construct a third correspondence between the carbon emission quota usage progress equilibrium value of the power generation enterprise and the power generation, and construct a fourth correspondence between the section flow exceeding the limit and the power generation of the power generation unit.

[0045] Among them, the consumption of power generation resources is the power generation cost, and the carbon emission cost, as for the carbon emission quota use progress equilibrium value, is the reasonable value of the carbon emission quota use progress. The smaller the carbon emission quota use progress equilibrium value, the more the annual carbon emission quota can be just used up. Then, the cross-section flow limit refers to the rated value of the bus voltage, branch current or power of the transmission network in the power system. Finally, the first corresponding relationship is the corresponding relationship between the consumption of power generation resources and the power generation, the second corresponding relationship is the corresponding relationship between the consumption of carbon emission resources and the power generation, the third corresponding relationship is the corresponding relationship between the carbon emission quota use progress equilibrium value and the power generation of the power generation enterprise, and the fourth corresponding relationship is the corresponding relationship between the cross-section flow limit and the power generation.

[0046] Specifically, based on the corresponding operating costs and startup costs when the generator set is operating in each time period, the first corresponding relationship between the power generation resource consumption of the generator set and the power generation power is constructed; based on the carbon emission unit price and the carbon emissions of the generator set, the second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation power is constructed; based on the carbon emission quota and the used carbon emission quota of the power generation enterprise, the third corresponding relationship between the carbon emission quota usage progress equilibrium value of the power generation enterprise and the power generation power is constructed; based on the forward flow relaxation variable and the reverse flow relaxation variable, the fourth corresponding relationship between the section flow over-limit and the power generation power of the generator set is constructed.

[0047] Step S103, based on the first corresponding relationship, the second corresponding relationship, the third corresponding relationship and the fourth corresponding relationship, when the power generation meets the power generation constraint, the power generation power of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress equilibrium value and the minimum section tidal current exceeding the limit as the solution goals.

[0048] The solution goal is to solve the constraints of the power generation of the generator set in each time period.

[0049] Specifically, when the power generation meets the power generation constraint, the solution objectives are to minimize the power generation resource consumption, minimize the carbon emission resource consumption, minimize the carbon emission quota usage progress equilibrium value, and minimize the section tidal flow exceeding the limit. The first corresponding relationship, the second corresponding relationship, the third corresponding relationship, and the fourth corresponding relationship are solved through the preset solver to obtain the power generation of the generator set in each time period.

[0050] In the above-mentioned method for determining the output power of a generator set based on carbon emissions, the power generation parameters corresponding to the generator set whose power generation in each time period is to be determined are obtained, and based on the power generation parameters, the power generation constraints corresponding to the power generation are constructed; according to the power generation parameters, a first correspondence between the power generation resource consumption of the generator set and the power generation is constructed, a second correspondence between the carbon emission resource consumption of the generator set and the power generation is constructed, a third correspondence between the carbon emission quota usage progress equilibrium value of the power generation enterprise and the power generation is constructed, and a fourth correspondence between the cross-sectional current limit and the power generation of the generator set is constructed; based on the first correspondence, the second correspondence, the third correspondence and the fourth correspondence, when the power generation meets the power generation constraints, the power generation power of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress equilibrium value, and the minimum cross-sectional current limit as the solution goals. This application obtains the power generation parameters corresponding to the generator set, and constructs the power generation constraints based on the power generation parameters, and then constructs the corresponding relationship between the power generation and the power generation resource consumption, carbon emission resource consumption, carbon emission quota usage progress balance value and cross-section current limit. Based on the corresponding relationship and the power generation constraints, the power generation of the generator set in each time period is determined with the goal of minimizing the power generation resource consumption, minimizing the carbon emission resource consumption, minimizing the carbon emission quota usage progress balance value and minimizing the cross-section current limit. This method can more reasonably determine the power generation of the generator set.

[0051] In one embodiment, Figure 2 As shown, the power generation parameters include: the unit carbon emission corresponding to each unit power when the generator set is running in each time period, and the unit resource consumption corresponding to each unit carbon emission; constructing the second corresponding relationship between the carbon emission resource consumption and the power generation of the generator set includes the following steps:

[0052] Step S201, according to the unit carbon emission, obtain the corresponding carbon emission of the generator set when it is running in each time period.

[0053] Among them, the unit power is per million kilowatt-hours, and the unit carbon emissions are the carbon emissions corresponding to the generator set per million kilowatt-hours. The unit resource consumption is the unit price of carbon emissions. Finally, the carbon emissions are the carbon emissions corresponding to the generator set when it is operating in each time period.

[0054] Specifically, the unit carbon emissions are multiplied by the corresponding power generation when the generator set is running in each time period to obtain the corresponding carbon emissions when the generator set is running in each time period.

[0055] Step S202, obtaining the product of carbon emissions and unit resource consumption.

[0056] Specifically, the carbon emissions are multiplied by the unit resource consumption to obtain the product of the carbon emissions and the unit resource consumption, which is the corresponding power generation cost when the generator set is operating in each time period.

[0057] Step S203: Based on the product, a second corresponding relationship between the carbon emission resource consumption and the power generation of the power generation set is obtained.

[0058] Specifically, the second corresponding relationship is as follows:

[0059] Among them, e i,t is the unit carbon emission of generator set i in period t, in units of T.CO2 / MWH; ΔT h is the number of hours corresponding to each time period. For example, if each time period is 15 minutes, then ΔT h is 1 / 4; P c is the predetermined unit resource consumption of carbon emission, the unit is: Yuan / T.CO2, F2 is the carbon emission resource consumption of the generator set.

[0060] In this embodiment, by obtaining the corresponding carbon emissions when the generator set is running in each time period, and then obtaining the product of the carbon emissions and the unit resource consumption, a second corresponding relationship between the carbon emission resource consumption and the power generation of the generator set can be reasonably constructed.

[0061] In one embodiment, Figure 3 As shown, the power generation parameters include: the used carbon emission quota of the power generation enterprise, the total carbon emission quota of the power generation enterprise, and the penalty value of the total carbon emission quota utilization rate deviation of the power generation enterprise; constructing the third corresponding relationship between the carbon emission quota utilization progress equilibrium value and the power generation power of the power generation enterprise, including the following steps:

[0062] Step S301, based on the carbon emissions corresponding to the generator set when it is running in each time period, the total carbon emissions corresponding to the generator set are obtained.

[0063] Among them, the total carbon emissions are the cumulative carbon emissions of power generation units in all periods.

[0064] Specifically, the carbon emissions corresponding to the generator set when it is running in each time period are accumulated to obtain the total carbon emissions corresponding to the generator set.

[0065] Step S302, adding the total carbon emissions to the used carbon emissions quota of the power generation enterprise to obtain the current used carbon emissions quota of the power generation enterprise.

[0066] Among them, the used carbon emission quota is the carbon emission quota used by the power generation enterprise before the current generating unit is operated, and the total carbon emission quota is the annual carbon emission quota of the power generation enterprise.

[0067] Specifically, the total carbon emissions are added to the used carbon emission quota of the power generation enterprise to calculate the current used carbon emission quota of the power generation enterprise.

[0068] Step S303, based on the ratio between the currently used carbon emission quota and the total carbon emission quota, and the penalty value of the total carbon emission quota utilization rate deviation, obtain the third corresponding relationship between the carbon emission quota utilization progress equilibrium value and the power generation capacity of the power generation enterprise.

[0069] Among them, the usage rate deviation penalty value is the excess cost caused by the deviation in the use of carbon emission quotas. For example, if the carbon emissions of Shijia exceed the carbon emission quota or are less than the carbon emission quota in that year, it will cause increased costs.

[0070] Specifically, the third corresponding relationship is as follows:

[0071]

[0072] in, China is the power generation company that has used carbon emission quotas so far; Where is the total carbon emission quota of power generation enterprises; G is the number of power generation enterprises that participate in the allocation of carbon quotas; λ is the penalty cost for the deviation of annual carbon quota utilization rate; is the total carbon emission corresponding to the generator set; F3 is the equilibrium value of the carbon emission usage progress.

[0073] In this embodiment, the total carbon emissions corresponding to the power generation group are obtained, and then the total carbon emissions are added to the used carbon emission quota of the power generation enterprise to obtain the current used carbon emission quota of the power generation enterprise. Finally, based on the ratio between the currently used carbon emission quota and the total carbon emission quota, as well as the penalty value for the deviation in the utilization rate of the total carbon emission quota, the third corresponding relationship between the carbon emission quota utilization progress equilibrium value and the power generation power of the power generation enterprise can be obtained more reasonably.

[0074] In one embodiment, Figure 4 As shown, the power generation parameters include: the startup resource consumption of the generator set in each time period; constructing a first corresponding relationship between the power generation resource consumption and the power generation power of the generator set includes the following steps:

[0075] Step S401, obtaining the corresponding operating resource consumption of the generator set when it is operating in each time period.

[0076] Among them, the operating resource consumption is the corresponding operating cost when the generator set is running in each time period, and the startup resource consumption is the corresponding startup cost when the generator set is running in each time period.

[0077] Specifically, the unit power operation cost corresponding to each unit of generated power when the generator set is running in each time period is obtained, and based on the generated power and the unit power operation cost, the operation resource consumption corresponding to the generator set when it is running in each time period is obtained.

[0078] Step S402: obtaining a first corresponding relationship between the power generation resource consumption and the power generation power of the power generation set according to the startup resource consumption and the operation resource consumption.

[0079] Specifically, based on the sum of the startup resource consumption and the operation resource consumption, a first corresponding relationship between the power generation resource consumption and the power generation power of the power generation set is obtained.

[0080] The first correspondence is as follows:

[0081]

[0082] Where T represents the total number of time periods considered, with one time period of 15 minutes on D day and 96 time periods in a day; N represents the total number of generator sets; P i,t represents the power generated by generator set i in period t; C i,t (P i,t ), are the operating resource consumption and startup resource consumption of generator set i in period t, respectively. i,t (P i,t ) is a multi-segment linear function related to the power generation ranges declared by the unit and the corresponding energy prices; F1 represents the power generation resource consumption of the generator unit.

[0083] In this embodiment, by obtaining the corresponding operating resource consumption when the generator set is running in each time period, and based on the sum of the startup resource consumption and the operating resource consumption, the first corresponding relationship between the power generation resource consumption and the power generation power of the generator set can be reasonably obtained.

[0084] In one embodiment, obtaining the corresponding operating resource consumption of the generator set when it is running in each time period includes the following steps:

[0085] Obtain the corresponding relationship between the generated power and the operating resource consumption; based on the corresponding relationship, obtain the corresponding operating resource consumption when the generator set is running in each time period.

[0086] Specifically, the unit power operating cost corresponding to each unit of generated power when the generator set is operating in each time period is obtained, and based on the generated power and the unit power operating cost, the corresponding relationship between the generated power and the operating resource consumption is obtained. Finally, based on the corresponding relationship and the generated power of the generator set, the corresponding operating resource consumption when the generator set is operating in each time period is obtained.

[0087] In this embodiment, by acquiring the corresponding relationship between the generated power and the operating resource consumption, and then based on the corresponding relationship, the corresponding operating resource consumption when the generator set is running in each time period can be accurately obtained.

[0088] In one embodiment, the power generation parameters include: a section power flow constraint relaxation penalty factor of the generator set; and constructing a fourth corresponding relationship between the section power flow exceeding limit and the power generation power of the generator set, including the following steps:

[0089] The forward power flow relaxation variable and the reverse power flow relaxation variable corresponding to the generator set are obtained; based on the section power flow constraint relaxation penalty factor, the forward power flow relaxation variable and the reverse power flow relaxation variable, the fourth corresponding relationship between the section power flow exceeding limit and the generated power of the generator set is obtained.

[0090] The positive power flow slack variable is the slack variable of the positive power flow of the bus or branch line of the transmission network, and the negative power flow slack variable is the slack variable of the negative power flow of the bus or branch line of the transmission network.

[0091] Specifically, the inequality correspondence between the generated power of the generator set and the forward flow relaxation variables and the reverse flow relaxation variables is obtained, and based on the section flow constraint relaxation penalty factor, the forward flow relaxation variables and the reverse flow relaxation variables, the correspondence between the section flow exceeding the limit of the generator set and the forward flow relaxation variables and the reverse flow relaxation variables is obtained. Based on this correspondence and the above-mentioned inequality correspondence, the fourth correspondence between the section flow exceeding the limit of the generator set and the generated power is obtained.

[0092] In this embodiment, by obtaining the inequality correspondence between the generator set's generated power and the forward flow relaxation variables and the reverse flow relaxation variables, and obtaining the correspondence between the generator set's sectional flow exceeding the limit and the forward flow relaxation variables and the reverse flow relaxation variables, based on these two correspondences, the fourth correspondence between the generator set's sectional flow exceeding the limit and the generated power can be reasonably obtained.

[0093] In an application embodiment, an electric-carbon coupling system considering carbon emission progress balance is also provided, and the system mainly includes the following subsystems:

[0094] 1. Carbon emission quota acquisition system. This system is used to acquire and store the free carbon emission quotas obtained by enterprises.

[0095] 2. System parameter system. This system mainly obtains and stores system load and system positive and negative standby parameters in each period.

[0096] 3. Grid topology acquisition system. This system is used to acquire and store the topology of the power network, mainly including grid topology node information, topology branch information, branch-node association, and equipment-node association. This information forms the basis for the flow calculation link in modeling.

[0097] 4. Market subject quotation information acquisition system. The system is used to obtain and store quotation information of market subjects participating in the electricity market, including the number of quotation segments, the starting and ending power of each segment, and the corresponding quotation.

[0098] 5. Market subject physical parameter acquisition system. The system mainly acquires and stores the rated power parameters, minimum technical power generation parameters, ramp parameters, start and stop parameters, etc. of the unit.

[0099] 6. Power grid security information acquisition system. This system mainly acquires and stores basic section information, transmission limits, bus load forecast values ​​for each period, etc. It is also the basic information for the power flow calculation link.

[0100] 7. Electricity spot clearing algorithm model construction system. This system mainly constructs the core and main body of the algorithm model, specifies the input interface and output interface format of the algorithm model, and provides it to the outside in the form of an algorithm package.

[0101] 8. Clearing system. This system obtains the information in systems 1-6, organizes the data according to the algorithm model input interface format in system 7, then calls the algorithm package to perform clearing calculations, and stores the calculation results in the database.

[0102] 9. Result display system. Based on the calculation results of system 8, this system performs secondary combination analysis on the data and displays the system positive and negative standby information in each period, the start and stop information of the unit in each period, the planned power generation arrangement of the unit in each period, and the daily carbon emission quota usage of each enterprise.

[0103] In each subsystem, the algorithm model related to system 7 includes two modules: objective function and constraint conditions, as shown below:

[0104] The objective function is: F = F1 + F2 + F3 + F4. Among them, F1: the total power generation cost of the unit is minimized; F2: the total carbon emission cost of the unit is minimized; F3: the progress of the use of corporate carbon emission quota is balanced; F4: the cross-section flow limit is minimized.

[0105] ①、

[0106] Where T represents the total number of time periods considered, with one time period of 15 minutes on D day, and 96 time periods considered; N represents the total number of units; P i,t represents the power generation of unit i in period t; C i,t (Pi,t ), are the operating cost and startup cost of unit i in period t, respectively. i,t (P i,t ) is a multi-segment linear function related to the power generation ranges reported by the unit and the corresponding energy prices; unit startup costs It is a function related to the unit downtime, which represents the startup cost of the unit in different states (cold / warm / hot).

[0107] ②、

[0108] Among them, e i,t is the carbon emission intensity of the corresponding unit i in time period t, in units of tCO2 / MWH; ΔT h is the number of hours corresponding to each time period. For example, if each time period is 15 minutes, then ΔT h is 1 / 4; P c It is the carbon emission price approved by the government, in yuan / tCO2.

[0109] ③、

[0110] in, The middle is the total amount of carbon quotas used by power generation enterprises before the plan is compiled; Where is the total annual carbon emissions of power generation enterprises; G is the number of power generation enterprises that participate in the allocation of carbon quotas; λ is the penalty cost for the deviation of annual carbon quota utilization rate.

[0111] ④、

[0112] Among them, K is the penalty factor for relaxation of section flow constraints; are the positive and negative flow relaxation variables of section s respectively; NS is the total number of sections.

[0113] The model constraints are mainly as follows:

[0114] ① System load balance constraint. For each time period t, the load balance constraint can be described as:

[0115]

[0116] Among them, P i,t represents the power generation of unit i in time period t, T j,t represents the planned power of tie line j in time period t (input is positive, output is negative), NT is the total number of tie lines, D t For system load.

[0117] ② System positive and spare capacity constraints;

[0118]

[0119] Among them, α i,t represents the start and stop status of unit i in period t, α i,t =0 means the unit is shut down, α i,t =1 means the unit is on; is the maximum power generation of unit i in time period t; is the system positive spare capacity requirement for period t.

[0120] ③ System Negative Reserve Capacity Constraints

[0121]

[0122] in, is the minimum power generation of unit i in time period t; is the system positive spare capacity requirement for period t.

[0123] ④. Upper and lower limits of unit power generation

[0124]

[0125] ⑤、Climbing up and down constraints of the unit

[0126] P i,t -P i,t-1 ≤ΔP i U α i,t-1 ;P i,t-1 -P i,t ≤ΔP i D α i,t ;

[0127] ⑥. Constraints on the number of unit starts and stops

[0128]

[0129] Among them, U i,t is the startup status of unit i in period t; D i,t is the shutdown status of unit i in period t; m is the maximum number of starts and stops of the unit per day.

[0130] ⑦. Section tidal flow constraints

[0131]

[0132] Among them, P s min , P s max are the power flow transmission limits of section s; G s-iG is the generator output power transfer distribution factor of the node where unit i is located to section s; s-j G is the generator output power transfer distribution factor of the node of tie line j to section s; s-k is the generator output power transfer distribution factor for node k to section s. are the positive and reverse flow relaxation variables of section s respectively.

[0133] After the model's objective function, constraints and corresponding state variables are established, a commercial solver can be called to optimize the model and output the solution results.

[0134] The above-mentioned electric-carbon coupling system that considers the balance of carbon emission progress uses operations optimization technology to effectively ensure the safety of the power system and the safety of unit operation, while reducing the system's power generation cost and carbon emission cost. It also takes into account the carbon emission quota progress among power generation companies, and keeps the usage progress relatively consistent horizontally to avoid some companies using up their carbon emission quotas too early and some companies having excess carbon emission quotas. It then adopts a carbon emission balance strategy to avoid the inflexible characteristics of fixed allocation to days, and uses a dynamic rolling method to effectively balance the carbon emission quota usage progress. Combined with the actual system load situation and the actual limitations of the unit operating conditions, the carbon emission quota usage progress is effectively controlled, and ultimately the annual decomposition of carbon emissions to days combined with actual operating conditions is achieved.

[0135] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0136] Based on the same inventive concept, the embodiment of the present application also provides a device for determining the output power of a generator set based on carbon emissions for implementing the method for determining the output power of a generator set based on carbon emissions mentioned above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations of one or more embodiments of the device for determining the output power of a generator set based on carbon emissions provided below can be referred to the limitations of the method for determining the output power of a generator set based on carbon emissions above, and will not be repeated here.

[0137] In one embodiment, Figure 5 As shown, a device for determining the output power of a generator set based on carbon emissions is provided, comprising: a power generation constraint building module 501, a corresponding relationship building module 502 and a power generation determining module 503, wherein:

[0138] The power generation constraint building module 501 is used to obtain power generation parameters corresponding to the power generation sets of the power generation to be determined in each time period, and to build power generation constraints corresponding to the power generation based on the power generation parameters;

[0139] The corresponding relationship building module 502 is used to build a first corresponding relationship between the power generation resource consumption of the power generation unit and the power generation, build a second corresponding relationship between the carbon emission resource consumption of the power generation unit and the power generation, build a third corresponding relationship between the carbon emission quota use progress equilibrium value of the power generation enterprise and the power generation, and build a fourth corresponding relationship between the cross-section power flow limit and the power generation of the power generation unit;

[0140] The power generation determination module 503 is used to determine the power generation power of the generator set in each time period based on the first corresponding relationship, the second corresponding relationship, the third corresponding relationship and the fourth corresponding relationship, with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress equilibrium value, and the minimum section tidal current exceeding the limit as the solution objectives, when the power generation power meets the power generation power constraint.

[0141] In one embodiment, the correspondence construction module 502 is further used to obtain the corresponding carbon emissions of the generator set when it is running in each time period according to the unit carbon emissions; obtain the product of the carbon emissions and the unit resource consumption; based on the product, obtain the second correspondence between the carbon emission resource consumption of the generator set and the power generation power.

[0142] In one embodiment, the correspondence construction module 502 is further used to obtain the total carbon emissions corresponding to the generator set based on the corresponding carbon emissions when the generator set is operating in each time period; add the total carbon emissions to the used carbon emission quota of the power generation enterprise to obtain the current used carbon emission quota of the power generation enterprise; based on the ratio between the currently used carbon emission quota and the total carbon emission quota, and the penalty value for the deviation of the total carbon emission quota utilization rate, obtain the third correspondence between the carbon emission quota utilization progress equilibrium value of the power generation enterprise and the power generation power.

[0143] In one embodiment, the corresponding relationship building module 502 is further used to obtain the corresponding operating resource consumption when the generator set is running in each time period; based on the startup resource consumption and the operating resource consumption, the first corresponding relationship between the power generation resource consumption and the power generation power of the generator set is obtained.

[0144] In one embodiment, the corresponding relationship building module 502 is further used to obtain the corresponding relationship between the generated power and the operating resource consumption; based on the corresponding relationship, the corresponding operating resource consumption when the generator set is running in each time period is obtained.

[0145] In one embodiment, the corresponding relationship construction module 502 is further used to obtain the forward flow relaxation variables and reverse flow relaxation variables corresponding to the generator set; based on the section flow constraint relaxation penalty factor, the forward flow relaxation variables and the reverse flow relaxation variables, the fourth corresponding relationship between the section flow exceeding the limit and the generated power of the generator set is obtained.

[0146] Each module in the above-mentioned device for determining the output power of a generator set based on carbon emissions can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0147] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for determining the output power of a generator set based on carbon emissions is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0148] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0149] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0150] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0151] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0152] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0153] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0154] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0155] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for determining the output power of a generator set based on carbon emissions, characterized in that: The method comprises: Obtain power generation parameters corresponding to the power generation units for each time period to be determined; the power generation parameters include: the unit carbon emissions corresponding to each unit power of the power generation units when they are running in each time period, the unit resource consumption corresponding to each unit carbon emissions, the used carbon emission quota of the power generation enterprise, the total carbon emission quota of the power generation enterprise, and the penalty value for the deviation of the utilization rate of the total carbon emission quota of the power generation enterprise; Based on the power generation parameters, construct a power generation constraint corresponding to the power generation, and obtain the carbon emissions corresponding to the operation of the generator set in each time period according to the unit carbon emissions; According to the power generation parameters, a first corresponding relationship between the power generation resource consumption of the generator set and the power generation is constructed, and a second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation is constructed; based on the corresponding carbon emissions of the generator set when it is running in each time period, the corresponding total carbon emissions of the generator set are obtained; the total carbon emissions are added to the used carbon emission quota of the power generation enterprise to obtain the current used carbon emission quota of the power generation enterprise; based on the ratio between the currently used carbon emission quota and the total carbon emission quota, and the penalty value of the total carbon emission quota utilization rate deviation, the third corresponding relationship between the carbon emission quota utilization progress equilibrium value of the power generation enterprise and the power generation is obtained, and a fourth corresponding relationship between the section flow over-limit of the generator set and the power generation is constructed; Based on the first correspondence, the second correspondence, the third correspondence and the fourth correspondence, when the power generation meets the power generation constraint, the power generation of the generator set in each time period is determined with the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission usage progress equilibrium value and the minimum section flow over-limit as the solution goals.

2. The method according to claim 1, characterized in that The constructing a second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation power comprises: Obtaining the product of the carbon emission and the unit resource consumption; Based on the product, a second corresponding relationship between the carbon emission resource consumption of the generator set and the generated power is obtained.

3. The method according to claim 1, characterized in that The power generation parameters include: the startup resource consumption of the generator set in each time period; The constructing a first corresponding relationship between the power generation resource consumption of the power generation set and the power generation power comprises: Obtaining the corresponding operating resource consumption of the generator set when it is running in each time period; According to the startup resource consumption and the operation resource consumption, a first corresponding relationship between the power generation resource consumption of the generator set and the power generation power is obtained.

4. The method according to claim 3, characterized in that The obtaining of the corresponding operating resource consumption of the generator set when it is running in each time period includes: Obtaining a corresponding relationship between the generated power and the operating resource consumption; Based on the corresponding relationship, the corresponding operating resource consumption of the generator set when it operates in each time period is obtained.

5. The method according to claim 1, characterized in that: The power generation parameters include: a section power flow constraint relaxation penalty factor of the generator set; The constructing of a fourth corresponding relationship between the cross-sectional power flow exceeding the limit value of the generator set and the power generation power comprises: Obtaining a forward power flow relaxation variable and a reverse power flow relaxation variable corresponding to the generator set; Based on the section power flow constraint relaxation penalty factor, the forward power flow relaxation variable and the reverse power flow relaxation variable, a fourth corresponding relationship between the section power flow exceeding limit amount and the generated power of the generator set is obtained.

6. A device for determining the output power of a generator set based on carbon emissions, characterized in that: The device comprises: A power generation constraint construction module is used to obtain power generation parameters corresponding to the power generation set of each time period to be determined; the power generation parameters include: the unit carbon emissions corresponding to each unit power of the power generation set when it is running in each time period, the unit resource consumption corresponding to each unit carbon emissions, the used carbon emission quota of the power generation enterprise, the total carbon emission quota of the power generation enterprise, and the penalty value for the deviation of the utilization rate of the total carbon emission quota of the power generation enterprise; based on the power generation parameters, the power generation constraint corresponding to the power generation is constructed, and according to the unit carbon emissions, the carbon emissions corresponding to the power generation set when it is running in each time period are obtained; A correspondence construction module is used to construct a first correspondence between the power generation resource consumption of the generator set and the power generation according to the power generation parameters, and to construct a second correspondence between the carbon emission resource consumption of the generator set and the power generation; based on the carbon emissions corresponding to the generator set when it is running in each time period, the corresponding total carbon emissions of the generator set are obtained; the total carbon emissions are added to the used carbon emission quota of the power generation enterprise to obtain the current used carbon emission quota of the power generation enterprise; based on the ratio between the currently used carbon emission quota and the total carbon emission quota, and the penalty value of the total carbon emission quota utilization rate deviation, the third correspondence between the carbon emission quota utilization progress equilibrium value of the power generation enterprise and the power generation is obtained, and the fourth correspondence between the section flow over-limit of the generator set and the power generation is constructed; A power generation determination module is used to determine the power generation power of the generator set in each time period based on the first corresponding relationship, the second corresponding relationship, the third corresponding relationship and the fourth corresponding relationship, with the power generation satisfying the power generation constraint, taking the minimum power generation resource consumption, the minimum carbon emission resource consumption, the minimum carbon emission quota usage progress equilibrium value and the minimum section tidal flow exceeding limit as the solution objectives.

7. The device according to claim 6, characterized in that The device also includes: The corresponding relationship building module is also used to obtain the product of the carbon emission and the unit resource consumption; based on the product, a second corresponding relationship between the carbon emission resource consumption of the generator set and the power generation power is obtained.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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