Power transmission control method, system, equipment and medium for integrated energy base

Abstract

The present disclosure relates to the technical field of integrated energy base planning, design, and operation scheduling, and discloses a power transmission control method, system, device, and medium for an integrated energy base. The method comprises: obtaining target parameters, including transmission control parameters, wind and solar power generation power of wind and solar power sources in each sub-period within a future target period, thermal power characteristic parameters and thermal power operation parameters, and energy storage characteristic parameters of an energy storage source; substituting the wind and solar power generation power into an objective function, solving the objective function with the transmission control parameters, thermal power characteristic parameters, thermal power operation parameters, and energy storage characteristic parameters as first constraints to obtain the generated power of the thermal power source, the charge and discharge power of the energy storage source, and the curtailed power of the wind and solar power sources. The objective function includes a curtailment penalty function for the wind and solar power sources and a generation penalty function for the thermal power sources; and controlling the wind and solar power sources, the thermal power sources, and the energy storage source according to the solution results. This can increase the proportion of electricity from the wind and solar power sources.

Description

Technical Field

[0001] The present disclosure relates to the technical field of planning, design and operation scheduling of integrated energy bases, and in particular to a power transmission control method, system, equipment and medium for an integrated energy base. Background Art

[0002] To promote a green and low-carbon energy transition, some integrated energy bases, which include wind and solar power, thermal power, and energy storage, typically require that wind and solar power sources deliver as much power as possible within a predetermined timeframe. Furthermore, when wind and solar power generation cannot meet demand, thermal power will be used to supply power to the grid. However, in some integrated energy bases, thermal power still accounts for a disproportionately large portion of the power supplied to the grid, while wind and solar power still account for a relatively small portion, failing to meet green power supply requirements. Summary of the Invention

[0003] In view of this, the embodiments of the present disclosure provide a power transmission control method, a power transmission control system, an electronic device and a computer-readable storage medium for an integrated energy base, which can increase the proportion of electric energy transmitted to the power grid by wind and solar power sources.

[0004] In one aspect, the present disclosure provides a power transmission control method for an integrated energy base, wherein the integrated energy base includes a wind and solar power generation source, a thermal power generation source, and an energy storage power source; the method comprises:

[0005] Obtaining target parameters required for power transmission control, the target parameters including power transmission control parameters of the integrated energy base, wind and solar power generation power of the wind and solar power generation source in each sub-period within a future target period, thermal power characteristic parameters and thermal power operation parameters of the thermal power generation source, and energy storage characteristic parameters of the energy storage power source;

[0006] Substituting the wind and solar power generation power into a preset objective function, taking one or more of the power transmission control parameter, the thermal power characteristic parameter, the thermal power operation parameter, and the energy storage characteristic parameter as a first constraint, and taking the maximum amount of electricity transmitted to the power grid within the target period as a goal, the objective function is solved to obtain the power generation power of the thermal power generation source, the charging and discharging power of the energy storage power source, and the power curtailment power of the wind and solar power generation source within each sub-period of the target period, wherein the objective function includes a power curtailment penalty function of the wind and solar power generation source and a power generation penalty function of the thermal power generation source;

[0007] According to the solution results, the wind and solar power generation source, the thermal power generation source and the energy storage power source are controlled.

[0008] Another aspect of the present disclosure provides a power transmission control system for an integrated energy base, wherein the integrated energy base includes a wind and solar power generation source, a thermal power generation source, and an energy storage power source; the system includes:

[0009] a parameter acquisition module, configured to acquire target parameters required for power transmission control, the target parameters including power transmission control parameters of the integrated energy base, wind and solar power generation power of the wind and solar power generation sources in each sub-period within a future target period, thermal power characteristic parameters and thermal power operation parameters of the thermal power generation source, and energy storage characteristic parameters of the energy storage power source;

[0010] an objective function solving module, configured to substitute the wind and solar power generation power into a preset objective function, take one or more of the transmission control parameters, the thermal power characteristic parameters, the thermal power operation parameters, and the energy storage characteristic parameters as first constraints, and take maximizing the amount of electricity delivered to the power grid within the target period as a goal, solve the objective function, and obtain the generated power of the thermal power source, the charging and discharging power of the energy storage source, and the abandoned power of the wind and solar power source within each sub-period of the target period, wherein the objective function includes an abandoned power penalty function of the wind and solar power source and a power generation penalty function of the thermal power source;

[0011] A control module is used to control the wind and solar power generation source, the thermal power generation source and the energy storage power source according to the solution result.

[0012] On the other hand, the present disclosure further provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method described above is implemented.

[0013] On the other hand, the present disclosure further provides an electronic device, which includes a processor and a memory, wherein the memory is used to store a computer program, and when the computer program is executed by the processor, the method described above is implemented.

[0014] In the technical solutions of some embodiments of the present disclosure, since the objective function includes a penalty function for curtailment of wind and solar power sources and a penalty function for generation of thermal power sources, the maximum amount of electricity delivered to the power grid during the target period is taken as the goal, the acquired wind and solar power generation power is substituted into the objective function, and after solving the objective function, the generated power of the thermal power source, the charging and discharging power of the energy storage power source, and the curtailment power of the wind and solar power sources obtained during each sub-period of the target period can correspond to a scenario where the amount of curtailment of the wind and solar power sources is small and the amount of thermal power generation of the thermal power sources is small. In this way, after controlling the wind and solar power sources, the thermal power generation of the thermal power sources, and the energy storage power sources according to the solution of the objective function, the thermal power generation of the thermal power sources and the amount of curtailment of the wind and solar power sources can be effectively reduced, thereby increasing the proportion of electricity delivered to the power grid by the wind and solar power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The features and advantages of the present disclosure will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present disclosure in any way. In the accompanying drawings:

[0016] Figure 1 A schematic flow chart of a power transmission control method provided by some embodiments of the present disclosure is shown;

[0017] Figure 2 The power balance diagrams of some integrated energy bases in a typical week of small-scale new energy generation are shown;

[0018] Figure 3 The power balance diagram of some integrated energy bases in a typical week of new energy development is shown;

[0019] Figure 4 The power balance diagrams of some integrated energy bases in a typical week of new energy development are shown;

[0020] Figure 5 A schematic diagram of a module of a power transmission control system provided by an embodiment of the present disclosure is shown;

[0021] Figure 6 A schematic diagram of an electronic device provided by an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0023] The wind and solar power sources described in this disclosure include wind power and photovoltaic power. Because wind and solar power primarily rely on wind and solar energy for power generation, they cause minimal environmental pollution and are therefore considered green power sources. However, due to the random nature of wind and solar energy, the amount of electricity generated by wind and solar power sources varies from day to day.

[0024] To promote a green and low-carbon energy transition, maximizing the utilization of electricity generated by wind and solar power generation while ensuring power supply stability, affordability, and sustainability has become a new research topic. Currently, some integrated energy bases, which include wind, solar, thermal, and energy storage sources, divide future target periods into multiple subperiods and use simulations to predetermine the grid output power of wind, solar, and thermal power generation, as well as the charge and discharge power of energy storage within each subperiod. For example, a weekly period is divided into 52 subperiods. Using an 8760-hour time-series production simulation, with the goal of maximizing total grid-connected power, the grid output power of wind, solar, and thermal power generation, as well as the charge and discharge power of energy storage, is predetermined for each week. However, these simulation methods often employ inappropriate constraints, resulting in a disproportionate share of electricity supplied to the grid from thermal power generation and a relatively small share from wind and solar power generation, failing to meet green power supply requirements.

[0025] In view of this, the present disclosure provides a power transmission control method for an integrated energy base, which can reduce the proportion of electric energy transmitted to the power grid by thermal power generation sources and increase the proportion of electric energy transmitted to the power grid by wind and solar power generation sources, thereby meeting the requirements of green power supply. The power transmission control method can be applied to electronic devices. Electronic devices include but are not limited to control circuit boards, computers, servers, etc. Figure 1 , which is a flow chart of a power transmission control method provided in some embodiments of the present disclosure. Figure 1 In the embodiment, the power transmission control method comprises the following steps:

[0026] Step S11, obtaining target parameters required for power transmission control, the target parameters including the power transmission control parameters of the integrated energy base, the wind and solar power generation power of each sub-period in the future target period of the wind and solar power generation source, the thermal power characteristic parameters and thermal power operation parameters of the thermal power generation source, and the energy storage characteristic parameters of the energy storage power source.

[0027] Specifically, the duration of the target period can be selected according to actual needs, for example, it can be the next year, the next month, or the next three years. The target period can be divided into multiple sub-periods. For example, using days as the division unit, the next year can be divided into 365 sub-periods. In this embodiment, the target period is the next year, and using weeks as the division unit, the next year can be divided into 52 sub-periods (the last week is 8 days).

[0028] In some embodiments, based on the historical power generation data of the wind and solar power generation source, the wind and solar power generation power of the wind and solar power generation source in each sub-period within the future target period can be predicted by time series prediction and other methods.

[0029] Transmission control parameters characterize the minimum and maximum power that an integrated energy base must output to the grid. Specifically, these parameters are determined based on the capacity of the integrated energy base's transmission channels and the maintenance time (i.e., the permitted operating time).

[0030] Thermal power generation characteristic parameters are used to characterize the performance characteristics of thermal power generation sources within an integrated energy base, including but not limited to the number of installed units and the capacity of each unit. The number of installed units refers to the total number of thermal power generation sources within the integrated energy base; the capacity of each unit refers to the rated output power of a single thermal power generation source operating independently, measured in megawatts or 10,000 kilowatts. Specifically, parameters such as the number of installed units can be derived from the actual deployment scale of the integrated energy base, while parameters such as the capacity of each unit can be derived from the product performance parameters of the thermal power generation sources.

[0031] Thermal power operating parameters characterize the operating characteristics of thermal power sources within integrated energy bases, including but not limited to the minimum technical output, annual maintenance schedule, and unit ramp constraints. The minimum technical output refers to the minimum power generation required to ensure normal operation of the thermal power source. If the actual power generation of a thermal power source does not meet this minimum power generation, normal operation of the thermal power source may be affected. The annual maintenance schedule refers to the time period within a target period for maintenance of the thermal power source. Specifically, thermal power operating parameters can be obtained from the thermal power source's maintenance plan and product performance parameters.

[0032] Energy storage characteristic parameters can characterize the performance characteristics of energy storage power supplies in integrated energy bases, including but not limited to the energy storage power supply's rated charging power, rated discharge power, maximum charging power, minimum charging power, charging efficiency, discharge efficiency, maximum energy storage capacity, and overall energy storage efficiency. Specifically, energy storage characteristic parameters can be obtained from the energy storage power supply's product performance parameters.

[0033] Step S12: Substitute the wind and solar power generation power into a preset objective function, take one or more of the transmission control parameters, thermal power characteristic parameters, thermal power operation parameters, and energy storage characteristic parameters as the first constraint, take the maximum amount of electricity transmitted to the power grid within the target period as the goal, solve the objective function, and obtain the power generation power of the thermal power source, the charging and discharging power of the energy storage source, and the power curtailment power of the wind and solar power source in each sub-period of the target period. The objective function includes the power curtailment penalty function of the wind and solar power source and the power generation penalty function of the thermal power source.

[0034] Specifically, in some embodiments, the objective function may be as shown in Expression (1).

[0035]

[0036] Among them, F represents the amount of electricity transmitted from the integrated energy base to the power grid during the target period, T represents the number of sub-periods within the target period, and E t represents the total amount of electricity delivered to the power grid by the integrated energy base in the tth sub-period, represents the power curtailment penalty function of wind and solar power generation sources, α represents the power curtailment penalty coefficient of the power curtailment penalty function, represents the amount of power abandoned by wind and solar power generation in the tth sub-period, represents the power generation penalty function of the thermal power source, β represents the thermal power generation penalty coefficient of the power generation penalty function, It represents the thermal power generation of the thermal power source in the tth sub-period.

[0037] Furthermore, the total power E t It can be shown as expression (2).

[0038] E t =P t ·Δt (2)

[0039] Among them, P t It represents the total power output from the integrated energy base to the grid in the t-th sub-period, and Δt represents the duration of the t-th sub-period.

[0040] The above-mentioned wasted electricity It can be shown as expression (3).

[0041]

[0042] Among them, p cur,t Indicates the abandoned power of wind and solar power generation in the tth sub-period. In this application, p cur,t The value of is the absolute value of the abandoned power.

[0043] The above thermal power generation It can be shown as expression (4).

[0044]

[0045] Among them, p f,t It represents the power generated by the thermal power source in the tth sub-period.

[0046] Furthermore, the total power P t It can be expressed as expression (5):

[0047] P t =p w,t +p s,t +p f,t +p es,t -p cur,t (5)

[0048] Among them, p w,t represents the power generated by the wind power source in the tth sub-period, p s,t represents the power generated by the photovoltaic power source in the tth sub-period; p f,t represents the power generated by the thermal power source in the tth sub-period; p es,t Indicates the charging and discharging power of the energy storage power supply in the tth sub-period.

[0049] In expression (5), p w,t and p s,t It can be collectively referred to as the wind and solar power generation power in step S11. w,t and p s,t Substituting into the above expressions (1) to (5), and taking one or more of the transmission control parameters, thermal power characteristic parameters, thermal power operation parameters and energy storage characteristic parameters as the first constraint, and taking the maximum amount of electricity delivered to the grid within the target period as the goal, it is possible to solve the generated power of the thermal power source, the charging and discharging power of the energy storage source and the abandoned power of the wind and solar power source in each sub-period of the target period.

[0050] It should be noted that when solving the objective function, one or more of the transmission control parameters, thermal power generation parameters, thermal power generation operating parameters, and energy storage parameters are used as the first constraint. This is to ensure that the duration of power transmission from the integrated energy base to the grid complies with the operational life of the transmission channel, and that the wind, solar, thermal, and energy storage sources are within their normal operating ranges. This prevents the solution from exceeding the actual operating capabilities of the transmission channel, wind, solar, thermal, and energy storage sources, ensuring the accuracy of the solution.

[0051] In addition, the objective function expression shows that, since the objective function includes a penalty function for wind and solar power generation curtailment and a penalty function for thermal power generation, when the amount of curtailment from wind and solar power sources increases and the amount of thermal power generation from thermal power sources increases, the amount of power F delivered by the integrated energy base to the grid during the target period will decrease. Similarly, when the amount of curtailment from wind and solar power sources decreases and the amount of thermal power generation from thermal power sources decreases, the amount of power F delivered by the integrated energy base to the grid during the target period will increase. Based on this principle, with the goal of maximizing the amount of power delivered to the grid during the target period, substituting the acquired wind and solar power generation power into the objective function, and solving the objective function to obtain the thermal power generation power, charge and discharge power of the energy storage power source, and curtailment power of the wind and solar power sources, we can predict scenarios where the amount of curtailment from wind and solar power sources is small and the amount of thermal power generation from thermal power sources is small. In this way, after controlling the wind and solar power sources, thermal power sources and energy storage power sources according to the solution results, the thermal power generation of thermal power sources and the amount of power curtailment of wind and solar power sources can be effectively reduced, thereby increasing the proportion of electricity transmitted to the power grid by wind and solar power sources.

[0052] In this embodiment, the Gurobi solver is used to solve the objective function.

[0053] Step S13: Control the wind and solar power generation source, the thermal power generation source, and the energy storage power source according to the solution result.

[0054] In summary, in the technical solutions of some embodiments of the present disclosure, since the objective function includes a penalty function for curtailment of wind and solar power sources and a penalty function for generation of thermal power sources, the maximum amount of electricity delivered to the power grid during the target period is taken as the goal, the acquired wind and solar power generation power is substituted into the objective function, and after solving the objective function, the generated power of the thermal power source, the charging and discharging power of the energy storage power source, and the curtailment power of the wind and solar power sources obtained during each sub-period of the target period can correspond to a scenario where the amount of curtailment of the wind and solar power sources is small and the amount of thermal power generation of the thermal power sources is small. In this way, after controlling the wind and solar power sources, the thermal power generation of the thermal power sources, and the energy storage power sources according to the solution of the objective function, the thermal power generation of the thermal power sources and the amount of curtailment of the wind and solar power sources can be effectively reduced, thereby increasing the proportion of electricity delivered to the power grid by the wind and solar power sources.

[0055] The solution of the present disclosure is further described below.

[0056] In some embodiments, considering the power shortage scenario, the total power P t It can be expressed as expression (6):

[0057] P t =p w,t +p s,t +pf,t +p es,t -p cur,t +p gap,t (6)

[0058] Among them, p gap,t It represents the power shortage of the integrated energy base in the tth sub-period.

[0059] The objective function may also include a power shortage penalty function of the integrated energy base. Specifically, the objective function including the power shortage penalty function may be as shown in Expression (7).

[0060]

[0061] in, represents the power shortage penalty function of the integrated energy base, γ represents the power shortage penalty coefficient of the power shortage penalty function, It represents the power shortage of the integrated energy base in the tth sub-period.

[0062] Incorporating a power shortage penalty function into the objective function means that during the solution process, the total output of the integrated energy base in each period is adjusted to allow for power shortages compared to the transmission curve. This expands the solution scope and yields more optimal results. For example, assume that in a transmission step, for sub-periods t to t+4, the maximum power generation capacity of the integrated energy base is [100, 100, 90, 100, 100] MW. Since the integrated energy base must deliver an equal amount of power to the grid in each sub-period within a transmission step, the optimal transmission curve for this transmission step, assuming power shortages are not tolerated, should be [9, 9, 9, 9]. Consequently, during periods t, t+1, t+3, and t+4, wind and solar power may be curtailed due to the inability to reduce thermal power output. This increases the renewable energy curtailment rate and reduces the base's overall grid-connected power. However, if power shortages are allowed in the integrated energy base, the optimal transmission curve for the transmission ladder should be [10, 10, 9, 10, 10]. Although a short-term power shortage occurs in the integrated energy base, the potential power curtailment rate of renewable energy can be greatly reduced. Moreover, by using the power shortage penalty coefficient and using power curtailment as an elastic constraint for the solution, the number of power shortage periods and the amount of power shortage can be controlled within an acceptable range, which is conducive to reducing wind and solar power curtailment and increasing the utilization hours of the transmission channel. Therefore, the solution result is better.

[0063] In some embodiments, the target parameter further includes a power shortage control parameter that indicates whether the integrated energy base allows power shortages. When the power shortage control parameter indicates that the integrated energy base does not allow power shortages, the target function may be as shown in the above expression (1); when the power shortage control parameter indicates that the integrated energy base allows power shortages, the target function may be as shown in the above expression (7).

[0064] By setting the power shortage control parameters, it is possible to control whether the objective function includes the power shortage penalty function according to actual needs, which has better applicability.

[0065] In some embodiments, the power shortage penalty function uses the power shortage power of the integrated energy base as an independent variable, which can be specifically shown as expression (8).

[0066]

[0067] Among them, when the power shortage control parameter represents that the comprehensive energy base does not allow power shortage, the power shortage power (i.e., p gap,t ) is set to 0.

[0068] In some embodiments, the first constraint may specifically include constraints as shown in Expressions (5), (6) and Expressions (9) to (16):

[0069] P min ≤P t ≤P max (9)

[0070]

[0071] |p f,t -p f,t-1 |≤△p (11)

[0072]

[0073] Among them, P min Indicates the minimum power that the integrated energy base needs to output to the grid; P max Indicates the maximum power that the integrated energy base is allowed to output to the grid; Indicates the minimum technical output of thermal power generation source, It represents the rated output of the thermal power generation source; △p represents the maximum power variation allowed by the thermal power generation source between two adjacent time periods; Indicates the minimum charging power allowed by the energy storage power supply; Indicates the maximum charging power allowed by the energy storage power supply; Indicates the minimum discharge power allowed by the energy storage power supply; Indicates the maximum discharge power allowed by the energy storage power supply; Indicates the maximum energy storage capacity of the energy storage power supply; represents the energy storage capacity of the energy storage power supply in the tth sub-period; η ch Represents the charging efficiency of the energy storage power supply, η dis Indicates the discharge efficiency of the energy storage power supply; Indicates that the energy storage power supply is in the charging state in the tth sub-period; Indicates that the energy storage power supply is in the discharging state in the tth sub-period, where and The value of is 0 or 1. and The values ​​of are different.

[0074] In some embodiments, the target parameter also includes the minimum annual utilization hours of the transmission channel M. The above-mentioned solving of the target function may also include:

[0075] The objective function is solved with the minimum annual utilization hours M of the transmission channel as the second constraint.

[0076] Specifically, during the solution process, the actual utilization hours of the transmission channel can be greater than or equal to the minimum annual utilization hours M. This prevents the solution result from exceeding the normal operating hours of the transmission channel, ensuring the accuracy of the solution result.

[0077] In some embodiments, the target parameter further includes the maximum number of power changes allowed when the integrated energy base transmits power to the power grid within a preset time period. The above-mentioned solving of the target function may also include:

[0078] The objective function is solved with the maximum number of power changes as the third constraint.

[0079] Specifically, the preset duration can be the target duration or the duration of each sub-period within the target duration. The actual number of power changes during power transmission from the integrated energy base to the grid within the preset duration can be less than or equal to the maximum number of power changes. This prevents excessive power changes during power transmission from the integrated energy base and ensures stable power transmission.

[0080] In some embodiments, the target parameter further includes a minimum duration during which the transmission power of the integrated energy base remains constant. The above-mentioned solving of the target function may further include:

[0081] The objective function is solved with the duration of minimum power as the fourth constraint.

[0082] Specifically, when the integrated energy base supplies power to the grid at one power level, its continuous duration can be greater than or equal to the minimum power duration. For example, assuming the minimum power duration is 3 hours, then when the integrated energy base supplies power to the grid at power A, its continuous duration must not be less than 3 hours. After 3 hours, if the power supplied to the grid by the integrated energy base changes from power A to power B, then the continuous duration of power supplied to the grid at power B must not be less than 3 hours. This can avoid the problem of excessive power changes during the integrated energy base's power supply process and ensure power supply stability.

[0083] The following describes the solution of the present disclosure by taking a comprehensive energy base M including a wind power generation source, a photovoltaic power generation source, a thermal power generation source, and an energy storage power source as an example.

[0084] In the integrated energy base M, the installed capacity of wind power generation is 8 million kilowatts, the installed capacity of photovoltaic power generation is 4 million kilowatts, the installed capacity of thermal power generation is 100*40,000 kilowatts, the installed capacity of energy storage is 2 million kilowatts*2 hours, the comprehensive efficiency of energy storage is 90%, the maximum transmission capacity of the transmission channel is 8 million kilowatts, the minimum utilization rate of the channel is 10%, the maximum number of power changes is 5, the minimum power duration is 3 hours, the minimum annual utilization hours of the transmission channel is 4,500 hours, and the power shortage control parameters characterize the integrated energy base. The allowable power shortage and power abandonment penalty coefficient α is 1.5, the thermal power generation penalty coefficient β is 1.2, and the power shortage penalty coefficient γ is 5.

[0085] Using an 8760-hour time-series production simulation, we obtain the power generation of thermal power sources, the charging and discharging power of energy storage sources, and the curtailment power of wind and solar power sources in each sub-period of the target period. After controlling the wind and solar power sources, thermal power sources, and energy storage sources according to the solution results, we can find through statistics that the total annual on-grid power generation of integrated energy base M is 36.56 billion kilowatts, the annual utilization hours of the transmission channel are 4569 hours, the curtailment rate of wind and solar power sources is 1.89%, the annual proportion of electricity transmitted to the grid by thermal power sources is 31.48%, the annual utilization hours of thermal power sources are 2877 hours, and the system power shortage rate is 0%. It can be seen that the transmission control method provided by the present disclosure can effectively increase the proportion of electricity transmitted to the grid by wind and solar power sources, reduce the proportion of electricity transmitted to the grid by thermal power sources, and ensure the proportion of green electricity transmitted to the grid by integrated energy base M.

[0086] In order to more fully illustrate the beneficial effects of the disclosed method, Figures 2 to 4 .in, Figure 2 This is the power balance diagram of the integrated energy base M in a typical week of new energy small-scale development. Figure 3 This is the power balance diagram of a typical week of comprehensive energy base M in new energy. Figure 4 This is the power balance diagram of the integrated energy base M in a typical week of new energy development. Figures 2 to 4 It can be seen that no matter it is a typical week of small-scale new energy generation, a typical week of medium-scale new energy generation or a typical week of large-scale new energy generation, the proportion of electricity transmitted to the power grid by thermal power generation sources is relatively low, and the proportion of electricity transmitted to the power grid by wind and solar power generation sources is relatively high.

[0087] See also Figure 5 , which is a module diagram of a power transmission control system provided by an embodiment of the present disclosure. Figure 5 In the power transmission control system, the power transmission control system includes:

[0088] The parameter acquisition module is used to obtain the target parameters required for power transmission control. The target parameters include the power transmission control parameters of the integrated energy base, the wind and solar power generation power of each sub-period in the future target period, the thermal power characteristic parameters and thermal power operation parameters of the thermal power generation source, and the energy storage characteristic parameters of the energy storage source;

[0089] An objective function solving module is used to substitute the wind and solar power generation power into a preset objective function, use one or more of the transmission control parameters, thermal power characteristic parameters, thermal power operation parameters, and energy storage characteristic parameters as the first constraint, and use the maximum amount of electricity transmitted to the power grid within the target period as the goal to solve the objective function to obtain the generated power of the thermal power source, the charging and discharging power of the energy storage source, and the curtailed power of the wind and solar power source in each sub-period of the target period. The objective function includes a curtailment penalty function for the wind and solar power source and a power generation penalty function for the thermal power source;

[0090] The control module is used to control the wind and solar power generation sources, thermal power generation sources and energy storage power sources according to the solution results.

[0091] See also Figure 6 , is a schematic diagram of an electronic device provided by an embodiment of the present disclosure. The electronic device includes a processor and a memory, the memory being used to store a computer program. When the computer program is executed by the processor, the above method is implemented.

[0092] The processor may be a central processing unit (CPU). The processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0093] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. The processor executes the non-transitory software programs, instructions, and modules stored in the memory to perform various processor functions and data processing, thereby implementing the methods in the aforementioned method embodiments.

[0094] The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created by the processor, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory may optionally include a memory remotely located relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0095] An embodiment of the present disclosure further provides a computer-readable storage medium, which is used to store a computer program. When the computer program is executed by a processor, the above method is implemented.

[0096] Although the embodiments of the present disclosure have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present disclosure, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A power transmission control method for an integrated energy base, characterized in that: The comprehensive energy base includes a wind and solar power generation source, a thermal power generation source, and an energy storage power source; the method includes: Obtaining target parameters required for power transmission control, the target parameters including power transmission control parameters of the integrated energy base, wind and solar power generation power of the wind and solar power generation sources in each sub-period within a future target period, thermal power characteristic parameters and thermal power operation parameters of the thermal power generation source, energy storage characteristic parameters of the energy storage power source, and a power shortage control parameter indicating whether the integrated energy base allows power shortages; Substituting the wind and solar power generation power into a preset objective function, taking one or more of the power transmission control parameter, the thermal power characteristic parameter, the thermal power operation parameter, and the energy storage characteristic parameter as a first constraint, and taking the maximum amount of electricity transmitted to the power grid within the target period as a goal, the objective function is solved to obtain the power generation power of the thermal power generation source, the charging and discharging power of the energy storage power source, and the power curtailment power of the wind and solar power generation source within each sub-period of the target period, wherein the objective function includes a power curtailment penalty function of the wind and solar power generation source and a power generation penalty function of the thermal power generation source; According to the solution results, the wind and solar power generation source, the thermal power generation source and the energy storage power source are controlled; Wherein, the wind and solar power generation source includes a wind power generation source and a photovoltaic power generation source, and the wind and solar power generation power includes the power generation power of the wind power generation source and the power generation power of the photovoltaic power generation source; When the power shortage control parameter indicates that the integrated energy base does not allow power shortage, the objective function is as follows: ； The first constraint includes the following constraints: ； Wherein, F represents the amount of electricity delivered by the integrated energy base to the power grid during the target period, T represents the number of sub-periods within the target period, represents the total amount of electricity delivered by the integrated energy base to the power grid during the t-th sub-period, represents the power curtailment penalty function of the wind and solar power generation source, represents the power curtailment penalty coefficient of the power curtailment penalty function, represents the amount of power abandoned by the wind and solar power generation source in the tth sub-period, represents the power generation penalty function of the thermal power source, represents the thermal power generation penalty coefficient of the power generation penalty function, It represents the thermal power generation of the thermal power generation source in the tth sub-period.

2. The method according to claim 1, wherein When the power shortage control parameter indicates that the integrated energy base allows power shortage, the objective function is as follows: ； in, represents the power shortage penalty function of the integrated energy base, represents the power shortage penalty coefficient of the power shortage penalty function, Indicates the power shortage of the integrated energy base in the tth sub-period.

3. The method according to claim 1, wherein The first constraint specifically includes the following constraints: in, represents the power generated by the wind power source in the tth sub-period, represents the power generated by the photovoltaic power source in the tth sub-period; represents the power generation of the thermal power source in the tth sub-period; represents the charge and discharge power of the energy storage power supply in the tth sub-period; represents the abandoned power of the wind and solar power generation source in the tth sub-period; represents the power shortage of the integrated energy base in the tth sub-period, represents the minimum technical output of the thermal power source, Indicates the rated output of the thermal power generating source; Indicates the maximum power variation allowed by the thermal power generation source between two adjacent time periods; Indicates the minimum charging power allowed by the energy storage power supply; Indicates the maximum charging power allowed by the energy storage power supply; Indicates the minimum discharge power allowed by the energy storage power supply; Indicates the maximum discharge power allowed by the energy storage power supply; Indicates the maximum energy storage capacity of the energy storage power supply; represents the stored energy of the energy storage power supply in the tth sub-period; represents the charging efficiency of the energy storage power supply, Indicates the discharge efficiency of the energy storage power supply; Indicates that the energy storage power supply is in a charging state in the tth sub-period; Indicates that the energy storage power supply is in a discharging state in the tth sub-period, wherein, and The value of is 0 or 1. and The values ​​of are different.

4. The method according to claim 1, wherein The target parameters also include the minimum annual utilization hours M of the transmission channel; The solving the objective function includes: The objective function is solved using the minimum annual utilization hours M of the transmission channel as a second constraint.

5. The method according to claim 1, wherein The target parameters also include the maximum number of power changes allowed when the integrated energy base supplies power to the power grid within a preset time period; The solving the objective function includes: The objective function is solved using the maximum power change times as a third constraint.

6. The method according to claim 1, wherein The target parameters also include a minimum duration during which the transmission power of the integrated energy base remains unchanged; The solving the objective function includes: The objective function is solved using the minimum power duration as the fourth constraint.

7. A power transmission control system for an integrated energy base, characterized in that: The comprehensive energy base includes wind and solar power generation, thermal power generation and energy storage power; the system includes: a parameter acquisition module, configured to acquire target parameters required for power transmission control, the target parameters including power transmission control parameters of the integrated energy base, wind and solar power generation power of the wind and solar power generation sources in each sub-period within a future target period, thermal power characteristic parameters and thermal power operation parameters of the thermal power generation source, energy storage characteristic parameters of the energy storage power source, and a power shortage control parameter indicating whether the integrated energy base allows power shortages; an objective function solving module, configured to substitute the wind and solar power generation power into a preset objective function, take one or more of the transmission control parameters, the thermal power characteristic parameters, the thermal power operation parameters, and the energy storage characteristic parameters as first constraints, and take maximizing the amount of electricity delivered to the power grid within the target period as a goal, solve the objective function, and obtain the generated power of the thermal power source, the charging and discharging power of the energy storage source, and the abandoned power of the wind and solar power source within each sub-period of the target period, wherein the objective function includes an abandoned power penalty function of the wind and solar power source and a power generation penalty function of the thermal power source; Wherein, the wind and solar power generation sources include wind power generation sources and photovoltaic power generation sources; When the power shortage control parameter indicates that the integrated energy base does not allow power shortage, the objective function is as follows: ； Furthermore, the wind-solar power generation power includes the power generation power of the wind power generation source and the power generation power of the photovoltaic power generation source; and the first constraint specifically includes the following constraints: ； Wherein, F represents the amount of electricity delivered by the integrated energy base to the power grid during the target period, T represents the number of sub-periods within the target period, represents the total amount of electricity delivered by the integrated energy base to the power grid during the t-th sub-period, represents the power curtailment penalty function of the wind and solar power generation source, represents the power curtailment penalty coefficient of the power curtailment penalty function, represents the amount of power abandoned by the wind and solar power generation source in the tth sub-period, represents the power generation penalty function of the thermal power source, represents the thermal power generation penalty coefficient of the power generation penalty function, represents the thermal power generation of the thermal power generation source in the t-th sub-period; A control module is used to control the wind and solar power generation source, the thermal power generation source and the energy storage power source according to the solution result.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

9. An electronic device, characterized in that: The electronic device includes a processor and a memory, wherein the memory is used to store a computer program, and when the computer program is executed by the processor, the method according to any one of claims 1 to 6 is implemented.

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