Configuration method and device for energy storage equipment of thermal power generating unit

Abstract

The embodiment of the invention relates to the technical field of electric energy storage, in particular to an energy storage equipment configuration method and device of a thermal power generating unit. The method comprises the steps of obtaining initial energy storage power based on historical operation power and a frequency modulation instruction of a thermal power generating unit; obtaining a first predicted service life, a first adjustment mileage and a first adjustment performance index of the energy storage equipment based on the initial energy storage power; obtaining a first comprehensive income and target energy storage power based on the predicted service life, the adjustment mileage and the adjustment performance index; obtaining a second predicted service life, a second adjustment mileage and a second adjustment performance under different preset operation strategies based on the target energy storage power in the actual operation process; and obtaining a second comprehensive income and a target operation strategy based on the predicted service life, the adjustment mileage and the adjustment performance index, so as to configure the energy storage equipment through the target energy storage power and the target operation strategy. According to the technical scheme, the configuration precision can be improved, and economic efficiency and dynamic frequency modulation requirements are considered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power storage, in particular to a configuration method and device of energy storage equipment of thermal power generating units. BACKGROUND

[0002] In the power system, the thermal power generating unit has problems such as large thermal inertia, slow response speed, limited frequency modulation capacity, etc., and needs to compensate for the insufficient frequency modulation of the thermal power generating unit through energy storage equipment to meet the demand of modern power grid for fast frequency modulation. However, the current configuration scheme of thermal power generating units and energy storage equipment still has defects such as low configuration precision, poor economic benefit, and difficulty in adapting to the dynamic frequency modulation demand of the power grid.

[0003] Therefore, there is an urgent need for a new technical solution to solve the above technical problems. SUMMARY

[0004] The present application provides a configuration method and device of energy storage equipment of thermal power generating units, which can improve the configuration precision and take into account the economic efficiency and dynamic frequency modulation demand.

[0005] In a first aspect, the present application provides a configuration method of energy storage equipment of thermal power generating units, comprising: Based on the historical operation power and the historical frequency modulation instruction of the thermal power generating unit in the past preset time period, a plurality of initial energy storage powers to be verified of the energy storage equipment are obtained; Based on the historical operation power, the historical frequency modulation instruction and each initial energy storage power, a first predicted service life, a first regulation mileage and a first regulation performance index corresponding to the energy storage equipment respectively supplementing the insufficient regulation power of the thermal power generating unit through each initial energy storage frequency are obtained, and the insufficient regulation power is the regulation power lacking in the historical operation power relative to the historical regulation frequency instruction in the past time period; Based on the first predicted service life, the first regulation mileage and the first regulation performance index, a first comprehensive benefit of the thermal power generating unit and the energy storage equipment is obtained; The initial energy storage power corresponding to the highest first comprehensive benefit is taken as a target energy storage power; In the actual operation process, based on the target energy storage power, a second predicted service life, a second regulation mileage and a second regulation performance corresponding to the energy storage equipment under different preset operation strategies are obtained; Based on the second predicted service life, the second regulation mileage and the second regulation performance index, a second comprehensive benefit of the thermal power generating unit and the energy storage equipment is obtained; The preset operation strategy corresponding to the highest second comprehensive benefit is taken as a target operation strategy, and the energy storage equipment is configured through the target energy storage power and the target operation strategy.

[0006] In a second aspect, the present application provides a configuration device for an energy storage device of a thermal power unit, comprising: An initial energy storage power determination module, configured to obtain a plurality of initial energy storage powers to be verified of the energy storage device based on historical operation powers and historical frequency modulation instructions of the thermal power unit in a past preset time period; A first index acquisition module, connected to the initial energy storage power determination module, configured to obtain corresponding first predicted service life, first regulation mileage and first regulation performance index of the energy storage device when the energy storage device supplements a deficient regulation power of the thermal power unit by each of the initial energy storage powers based on the historical operation powers, the historical frequency modulation instructions and each of the initial energy storage powers, wherein the deficient regulation power is a regulation power that is deficient in the historical operation powers relative to the historical regulation frequency instructions in the past time period; A first benefit acquisition module, connected to the first index acquisition module, configured to obtain a first comprehensive benefit of the thermal power unit and the energy storage device based on the first predicted service life, the first regulation mileage and the first regulation performance index; A target energy storage power acquisition module, connected to the first benefit acquisition module, configured to take the initial energy storage power corresponding to the highest first comprehensive benefit as a target energy storage power; A second index acquisition module, connected to the target energy storage power acquisition module, configured to obtain corresponding second predicted service life, second regulation mileage and second regulation performance of the energy storage device under different preset operation strategies based on the target energy storage power in an actual operation process; A second benefit acquisition module, connected to the second index acquisition module, configured to obtain a second comprehensive benefit of the thermal power unit and the energy storage device based on the second predicted service life, the second regulation mileage and the second regulation performance index; An energy storage device configuration module, connected to the second benefit acquisition module, configured to take a preset operation strategy corresponding to the highest second comprehensive benefit as a target operation strategy, so as to configure the energy storage device by the target energy storage power and the target operation strategy.

[0007] In a third aspect, the present application provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the method in the first aspect.

[0008] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program, and the computer program, when executed in a computer, causes the computer to execute the method in the first aspect.

[0009] The embodiment of the present application provides a method and device for configuring energy storage equipment of a thermal power unit, which can analyze historical operation data of the thermal power unit, so that the obtained energy storage power is more suitable for the deficient regulation power under the actual operation condition of the thermal power unit, and the configuration accuracy of the energy storage power is higher. The energy storage power is dynamically verified in the actual operation process, and the optimal operation strategy is obtained, which can adapt to the demand of dynamic frequency regulation of the power grid. In addition, the selection of the target energy storage power and the target operation strategy considers the investment cost and frequency regulation benefit of the thermal power unit and the energy storage equipment, so that the economic benefit can be maximized. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0011] Figure 1 is a flow chart of a method for configuring energy storage equipment of a thermal power unit provided by an embodiment of the present application; Figure 2 is a hardware architecture diagram of an electronic device provided by an embodiment of the present application; Figure 3 is a structural block diagram of a device for configuring energy storage equipment of a thermal power unit provided by an embodiment of the present application. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0014] Please refer to Figure 1 The embodiment of the present application provides an energy storage method based on supercritical carbon dioxide, which comprises: Step 101: based on the historical operation power and the historical frequency regulation instruction of the thermal power unit in the past preset time period, a plurality of initial energy storage powers of the energy storage equipment to be verified are obtained; Step 102: based on the historical operation power, the historical frequency regulation instruction and each initial energy storage power, a first predicted service life, a first regulation mileage and a first regulation performance index corresponding to the energy storage equipment when the energy storage equipment supplements the deficient regulation power of the thermal power unit through each initial energy storage frequency are obtained. The lack of regulation power is the lack of regulation power of the historical operation power in the past time period relative to the historical regulation frequency instruction. Step 103: Obtain the first comprehensive benefit of the thermal power generating unit and the energy storage device based on the first predicted service life, the first regulation mileage and the first regulation performance index; Step 104: Take the initial energy storage power corresponding to the highest first comprehensive benefit as the target energy storage power; Step 105: In the actual operation process, obtain the second predicted service life, the second regulation mileage and the second regulation performance of the energy storage device under different preset operation strategies based on the target energy storage power; Step 106: Obtain the second comprehensive benefit of the thermal power generating unit and the energy storage device based on the second predicted service life, the second regulation mileage and the second regulation performance index; Step 107: Take the preset operation strategy corresponding to the highest second comprehensive benefit as the target operation strategy, so as to configure the energy storage device through the target energy storage power and the target operation strategy.

[0015] In the embodiment of the present application, the historical operation power and the historical frequency modulation instruction of the thermal power generating unit in the past preset time period are obtained. The historical frequency modulation instruction is an AGC (Automatic Generation Control) instruction in the power system, and the historical frequency modulation instruction is an instruction for pulling the frequency back to the normal range by controlling and adjusting the output of the generator set when the load of the power grid changes. The output of the thermal power generating unit (such as a coal-fired generating unit) in response to the historical frequency modulation instruction is the historical operation power. It can be understood that, due to the limitations of the thermal power generating unit, such as slow adjustment speed, limited climbing rate, insufficient deep peak regulation capacity, etc., when the power adjustment instruction is issued according to the historical frequency modulation instruction, the thermal power generating unit may not be able to fully respond in time and amplitude, resulting in the existence of the lack of adjustment power. The energy storage device is used to supplement the lack of adjustment power, so that the output of the thermal power generating unit can match the output of the frequency modulation instruction as much as possible. According to the lack of adjustment power in the historical operation data, a plurality of initial energy storage powers to be verified are selected, and the energy storage device is simulated to operate according to each initial energy storage power. During the simulation operation, the historical operation data is substituted, and some index data of the energy storage device when supplementing the lack of adjustment power corresponding to the historical operation data are calculated according to the performance parameters of the energy storage device, such as the first predicted service life, the first adjustment mileage and the first adjustment performance index. The first comprehensive benefit of the energy storage device and the thermal power generating unit in this combined operation mode is calculated according to the first predicted service life, the first adjustment mileage and the first adjustment performance index, and the initial energy storage power with the highest first comprehensive benefit is selected as the target energy storage power. At this time, the target energy storage power also needs to be dynamically verified to obtain the optimal operation strategy of the energy storage device. Through a period of actual operation, the energy storage device supplements the real-time lack of power between the real-time operation power and the real-time frequency modulation instruction of the thermal power generating unit with the target energy storage power (according to different preset operation strategies respectively), the second predicted service life, the second adjustment mileage and the second adjustment performance index of the energy storage device are calculated, and the second comprehensive benefit of the thermal power generating unit and the energy storage device is obtained. The preset operation strategy with the highest second comprehensive benefit is selected as the target operation strategy, and the energy storage device is configured through the target energy storage power and the target operation strategy.

[0016] In an embodiment of the present application, based on the historical operation power and the historical frequency modulation instruction of the thermal power generating unit in the past preset time period, a plurality of initial energy storage powers to be verified of the energy storage device are obtained, comprising: acquiring the historical operation power and the historical frequency modulation instruction of the thermal power generating unit in the past preset time period; obtaining the lack of adjustment power of the thermal power generating unit based on the difference between the historical frequency modulation instruction and the historical operation power; selecting a value capable of covering the lack of adjustment power by a preset percentage as a reference adjustment power; The benchmark adjustment power is gradient-increased according to a preset value to obtain multiple initial energy storage powers to be verified.

[0017] In the embodiment of the present application, when selecting the historical operation data of the thermal power generating unit (including the historical operation power and the historical frequency modulation instruction), a large amount of historical operation data needs to be selected for optimization and solving in consideration of the high randomness of the AGC instruction. In a preferred embodiment of the present application, the calculation complexity and the calculation accuracy are comprehensively considered, and the data of 84 days in total of the first Monday to Sunday of each month within one year are selected for optimization and solving, and the granularity of the historical operation data is accurate to the second. Based on the deficient adjustment power in the historical operation data, a value capable of covering most of the deficient adjustment power in the 84-day data is selected as the benchmark adjustment power of the energy storage device (the initial benchmark adjustment power to be configured is selected according to 90% coverage), and the initial configured benchmark adjustment power is taken as a benchmark, and the rated power of the unit is increased by 0.2% each time to configure the energy storage power, to obtain multiple initial energy storage powers to be verified. For example, the historical operation data contains 100 deficient adjustment powers, and 90 of them do not exceed 10 MW, so 10 MW is selected as the benchmark adjustment power.

[0018] In an embodiment of the present application, based on the historical operation power, the historical frequency modulation instruction and each initial energy storage power, the first predicted service life, the first adjustment mileage and the first adjustment performance index of the energy storage device for supplementing the deficient adjustment power of the thermal power generating unit through each initial energy storage frequency are obtained, including: Each initial energy storage power is substituted into the simulation model of the energy storage device operation, and in the simulation model, the first energy storage output and the first energy storage capacity of the energy storage device output by the simulation model are obtained, and the energy storage device supplements the deficient adjustment power through the initial energy storage frequency. Based on the first energy storage output and the first energy storage capacity, the first predicted service life, the first adjustment mileage and the first adjustment performance index of the energy storage device are obtained.

[0019] In the embodiment of the present application, the power characteristics and capacity characteristics of the energy storage device are obtained, the power characteristics including the charging and discharging rate, charging efficiency and discharging efficiency, and the capacity characteristics being the charging and discharging capacity that the energy storage device can accommodate. A numerical calculation model is constructed according to the power characteristics and capacity characteristics of the energy storage device, the initial energy storage power is taken as the initial parameter of the numerical calculation model, the historical operation data of 84 days is input into the numerical calculation model, and the first energy storage output and the first energy storage capacity output by the numerical calculation model are obtained. The charging and discharging depth of each charging and discharging of the energy storage device is calculated according to the first energy storage output and the first energy storage capacity, the equivalent life loss of each charging and discharging (taking 100% depth charging and discharging as the standard life model) is obtained, the daily average equivalent life loss is obtained by counting the total life loss of 84 days, and the first predicted service life is calculated. The first adjustment mileage is calculated according to the effective power of the energy storage device participating in frequency modulation in the first energy storage output. Specifically, the single mileage = the output adjustment value actually contributed to frequency modulation for each response to the AGC frequency modulation control instruction, and the first adjustment mileage is the cumulative calculation of the single adjustment mileage, so as to obtain the total adjustment mileage (such as MW / day) in unit time. The first adjustment performance index is calculated by superimposing the first energy storage output and the thermal power unit output to obtain the combined output of the thermal storage, and comparing the AGC instruction sequence, the discrete formula (such as K = Σ |1- (combined output deviation / instruction deviation)| / n) specified by the local rules is used to calculate, wherein n is the number of data points in the statistical period.

[0020] In an embodiment of the present application, based on the first predicted service life, the first adjustment mileage and the first adjustment performance index, the first comprehensive income of the thermal power unit and the energy storage device is obtained, including: Based on the first predicted service life, the first adjustment mileage and the first adjustment performance index, the first annual frequency modulation income of the thermal power unit and the energy storage device is obtained, the first annual frequency modulation income = preset mileage unit price * first adjustment mileage * first adjustment performance index. Based on the first predicted service life, the first annual frequency modulation income, the preset initial capacity cost and the preset annual average operation and maintenance cost, the first comprehensive income of the thermal power unit and the energy storage device is obtained.

[0021] In the embodiment of the present application, the first predicted service life, the first annual frequency modulation benefit, the preset initial capacity cost and the preset annual average operation and maintenance cost can calculate some key indicators of the thermal power generating unit and energy storage device combined output system, such as energy storage operation life cycle, investment internal rate of return and full life cycle benefit. The energy storage operation life cycle is the first predicted service life, and in actual application, factors such as aging of energy storage devices (such as batteries) will also be considered, and a value smaller than the first predicted service life is selected as the energy storage operation life cycle. The full life cycle benefit = the first annual frequency modulation benefit * the energy storage operation life cycle - (the preset initial capacity cost + the preset annual average operation and maintenance cost). The investment internal rate of return is calculated according to the discount rate at which the sum of the present value of the cash flow in the full life cycle of the project is equal to 0. By using these key indicators and assigning a preset weight value to each key indicator, the first comprehensive benefit can be obtained. It can be understood that the first comprehensive benefit can also be obtained by staff analyzing and comparing the above-mentioned key indicators and according to working experience.

[0022] In an embodiment of the present application, in the actual operation process, the second predicted service life, the second adjustment mileage and the second adjustment performance of the energy storage device corresponding to different preset operation strategies based on the target energy storage power are obtained, including: In the actual operation process, the real-time lack of power of the thermal power generating unit is supplemented by the energy storage device according to different preset operation strategies at the target energy storage power, and the real-time lack of power is obtained based on the difference between the real-time frequency modulation instruction of the thermal power generating unit and the real-time operation power; Based on the real-time lack of power and the target energy storage power, the real-time power gap of the energy storage device under different preset operation strategies is obtained; Based on the target energy storage power and the real-time power gap, the second energy storage output and the second energy storage capacity of the energy storage device are obtained; Based on the second energy storage output and the second energy storage capacity, the second predicted service life, the second adjustment mileage and the second adjustment performance of the energy storage device are obtained.

[0023] In the embodiment of the present application, a dynamic response model is built on a simulink platform, a fire storage combined frequency modulation simulation model is built, and a stable output of the power of the energy storage module is realized through a negative feedback loop and a PI controller. Real-time frequency modulation instructions and real-time operation power of a thermal power generating unit in a week during actual operation are input, the real-time shortage power of the thermal power generating unit is supplemented by the energy storage equipment according to different preset operation strategies at a target energy storage power, and a simulation result is obtained by running the model according to a differential control mode, including a second energy storage output and a second energy storage capacity. Based on the second energy storage output and the second energy storage capacity, a second predicted service life, a second regulation mileage and a second regulation performance index of the energy storage equipment are obtained in the same way as the calculation of the first predicted service life, the first regulation mileage and the first regulation performance index, which will not be described herein again.

[0024] In an embodiment of the present application, based on the second predicted service life, the second regulation mileage and the second regulation performance index, a second comprehensive benefit of the thermal power generating unit and the energy storage equipment is obtained, including: Based on the second predicted service life, the second regulation mileage and the second regulation performance index, a second annual frequency modulation benefit of the thermal power generating unit and the energy storage equipment is obtained, and the second annual frequency modulation benefit = preset mileage unit price * second regulation mileage * second regulation performance index. Based on the second predicted service life, the second annual frequency modulation benefit, a preset initial capacity cost and a preset annual average operation and maintenance cost, the second comprehensive benefit of the thermal power generating unit and the energy storage equipment is obtained.

[0025] In the embodiment of the present application, the second comprehensive benefit is obtained in the same way as the first comprehensive benefit, which will not be described herein again.

[0026] In an embodiment of the present application, it further includes: If the error between the first predicted service life and the second predicted service life is less than 10%, the error between the first regulation mileage and the second regulation mileage is less than 10%, and the error between the first regulation performance index and the second regulation performance index is less than 10%, it is determined that the configuration scheme formed by the target energy storage power and the target operation strategy is a reasonable scheme.

[0027] In the embodiment of the present application, whether the target operation strategy and the target energy storage power are reasonable is verified, that is, the error between the predicted service life, the regulation mileage and the regulation performance index of the two is verified, and the error between the predicted service life, the regulation mileage and the regulation performance index needs to be less than 10% to pass the verification, which indicates that the configuration scheme is reasonable, otherwise an alarm prompt is output to the staff to prompt the staff to adjust the calculation process of the target energy storage power and the target operation strategy again.

[0028] As Figure 2 , Figure 3As shown, the embodiment of the present specification provides a kind of energy storage equipment configuration device of thermal power generating unit.The device embodiment can be realized by software, also can be realized by hardware or software and hardware combined mode.From the hardware level, as shown in Figure 2 As shown in a kind of hardware architecture diagram of the electronic equipment where the energy storage equipment configuration device of thermal power generating unit provided by the embodiment of the present specification is located, in addition to Figure 2 As shown in processor, memory, network interface and non-volatile memory, the electronic equipment where the device in the embodiment is usually also can include other hardware, such as responsible for processing the forwarding chip of message and so on.By example, as shown in Figure 3 As a logical sense device, it is formed by CPU of its electronic equipment in the memory of non-volatile memory corresponding computer program is read and run.

[0029] As shown in Figure 3 The embodiment provides an energy storage equipment configuration device of thermal power generating unit, which includes: initial energy storage power determination module 301, first index acquisition module 302, first benefit acquisition module 303, target energy storage power acquisition module 304, second index acquisition module 305, second benefit acquisition module 306 and energy storage equipment configuration module 307. The initial energy storage power determination module obtains a plurality of initial energy storage powers of the energy storage equipment to be verified based on historical operating power and historical frequency modulation instructions of the thermal power generating unit in a past preset time period. The first index acquisition module is connected with the initial energy storage power determination module, and obtains corresponding first predicted service life, first regulation mileage and first regulation performance index of the energy storage equipment when the energy storage equipment supplements the lack of regulation power of the thermal power generating unit by each initial energy storage frequency based on the historical operating power, the historical frequency modulation instruction and each initial energy storage power; The lack of regulation power is the regulation power lacking in the historical operating power relative to the historical regulation frequency instruction in the past time period. The first benefit acquisition module is connected with the first index acquisition module, and obtains the first comprehensive benefit of the thermal power generating unit and the energy storage equipment based on the first predicted service life, the first regulation mileage and the first regulation performance index. The target energy storage power acquisition module is connected with the first benefit acquisition module, and takes the initial energy storage power corresponding to the highest first comprehensive benefit as the target energy storage power. The second index acquisition module is connected with the target energy storage power acquisition module, and obtains corresponding second predicted service life, second regulation mileage and second regulation performance of the energy storage equipment under different preset operation strategies in actual operation process based on the target energy storage power. The second benefit acquisition module is connected with the second index acquisition module, and obtains the second comprehensive benefit of the thermal power generating unit and the energy storage device based on the second predicted service life, the second adjusted mileage and the second adjusted performance index. The energy storage device configuration module is connected with the second benefit acquisition module, and takes the preset operation strategy corresponding to the highest second comprehensive benefit as a target operation strategy to configure the energy storage device through the target energy storage power and the target operation strategy.

[0030] The information interaction and execution process between the modules in the above device are based on the same concept as the method embodiments of the present specification, and the specific content can be referred to the description in the method embodiments of the present specification, which will not be described here.

[0031] The method embodiments of the present specification also provide an electronic device including a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the energy storage device configuration method of the thermal power generating unit in any of the method embodiments of the present specification.

[0032] The method embodiments of the present specification also provide a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer program, when executed by a processor, causes the processor to execute the energy storage device configuration method of the thermal power generating unit in any of the method embodiments of the present specification.

[0033] Specifically, a system or device equipped with a storage medium can be provided, and the storage medium stores a software program code for implementing the functions of any of the above embodiments, and the computer (or CPU or MPU) of the system or device reads and executes the program code stored in the storage medium.

[0034] In this case, the program code read from the storage medium itself can implement the functions of any of the above embodiments, and therefore the program code and the storage medium storing the program code constitute a part of the present specification.

[0035] The storage medium for providing the program code includes a floppy disk, a hard disk, a magneto-optical disk, an optical disk (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), a magnetic tape, a non-volatile memory card, and a ROM. Alternatively, the program code can be downloaded from a server computer through a communication network.

[0036] In addition, it should be clear that not only the program code read by the computer can be executed, but also part or all of the actual operations can be completed by the operating system and the like operating on the computer based on the instructions of the program code, so as to implement the functions of any of the above embodiments.

[0037] Further, it is understood that the programs while being read by the storage media are written into the memory provided in the extension board inserted into the computer or the memory provided in the extension module connected to the computer, and then the CPU or the like mounted on the extension board or the extension module is caused to perform part or all of the actual operations based on the instructions of the program codes, thereby realizing the functions of any of the above-described embodiments.

[0038] It is noted that the terms such as first and second are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply there is any such actual relationship or order between these entities or operations. Also, the terms "include", "contain" or any other variants thereof are intended to cover the non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0039] It is understood by those of ordinary skill in the art that all or part of the steps of the above-mentioned method embodiments can be completed by program instruction related hardware, and the aforementioned program can be stored in a computer readable storage medium, and the program performs the steps including the above-mentioned method embodiments when executed; and the aforementioned storage medium includes ROM, RAM, magnetic disc or optical disc and various storage medium capable of storing program codes.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present specification, and not to limit them; although the present specification has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present specification.

Claims

1. A method for configuring energy storage equipment in a thermal power unit, characterized in that, include: Based on the historical operating power and historical frequency regulation commands of thermal power units within a preset time period, multiple initial energy storage capacities to be verified for the energy storage device are obtained. Based on the historical operating power, the historical frequency regulation command, and each initial energy storage power, the first predicted service life, the first regulation mileage, and the first regulation performance index are obtained when the energy storage device supplements the thermal power unit's lack of regulation power through each initial energy storage frequency. The lack of regulation power is the regulation power that the historical operating power lacks relative to the historical regulation frequency command during the past time period. Based on the first predicted service life, the first adjustment mileage, and the first adjustment performance index, the first comprehensive benefit of the thermal power unit and the energy storage equipment is obtained. The initial energy storage power corresponding to the highest comprehensive benefit is taken as the target energy storage power; In actual operation, based on the target energy storage power, the second predicted service life, second regulation mileage and second regulation performance of the energy storage device under different preset operation strategies are obtained respectively. Based on the second predicted service life, the second regulation mileage, and the second regulation performance index, the second comprehensive benefit of the thermal power unit and the energy storage equipment is obtained. The preset operating strategy corresponding to the highest second comprehensive benefit is used as the target operating strategy to configure the energy storage device through the target energy storage power and the target operating strategy.

2. The method according to claim 1, characterized in that, The method involves obtaining multiple initial energy storage capacities to be verified for the energy storage device based on the historical operating power and historical frequency regulation commands of the thermal power unit over a preset time period, including: Collect the historical operating power and historical frequency regulation commands of the thermal power unit within a preset time period; Based on the difference between the historical frequency regulation command and the historical operating power, the insufficient regulation power of the thermal power unit is obtained; Select a value that can cover the lack of regulation power by a preset percentage as the reference regulation power; The reference adjustment power is gradually increased according to a preset value to obtain the multiple initial energy storage powers to be verified.

3. The method according to claim 1, characterized in that, The method of obtaining the first predicted service life, first regulation mileage, and first regulation performance index corresponding to the energy storage device supplementing the insufficient regulation power of the thermal power unit through each initial energy storage frequency, based on the historical operating power, the historical frequency regulation command, and each initial energy storage power, includes: Each initial energy storage power is substituted into the simulation model of the energy storage device operation. In the simulation model, the first energy storage output and the first energy storage capacity of the energy storage device are obtained. The energy storage device supplements the lack of regulation power through the initial energy storage frequency. Based on the first energy storage output and the first energy storage capacity, the first predicted service life, the first regulation mileage, and the first regulation performance index of the energy storage device are obtained.

4. The method according to claim 1, characterized in that, The first comprehensive benefit of the thermal power unit and energy storage equipment, based on the first predicted service life, the first adjustment mileage, and the first adjustment performance index, includes: Based on the first predicted service life, the first regulation mileage, and the first regulation performance index, the first annual frequency regulation revenue of the thermal power unit and the energy storage equipment is obtained. The first annual frequency regulation revenue = preset mileage unit price * first regulation mileage * first regulation performance index. Based on the first predicted service life, the first annual frequency regulation revenue, the preset initial capacity cost, and the preset annual average operation and maintenance cost, the first comprehensive revenue of the thermal power unit and the energy storage equipment is obtained.

5. The method according to claim 3, characterized in that, In actual operation, based on the target energy storage power, the second predicted service life, second regulation mileage, and second regulation performance of the energy storage device under different preset operating strategies are obtained, including: In actual operation, the energy storage device supplements the real-time power deficit of the thermal power unit with the target energy storage power according to different preset operating strategies. The real-time power deficit is obtained based on the difference between the real-time frequency regulation command and the real-time operating power of the thermal power unit. Based on the real-time power deficit and the target energy storage power, the real-time power gap of the energy storage device under different preset operating strategies is obtained; Based on the target energy storage power and the real-time power gap, the second energy storage output and the second energy storage capacity of the energy storage device are obtained; Based on the second energy storage output and the second energy storage capacity, the second predicted service life, the second regulation mileage, and the second regulation performance index of the energy storage device are obtained.

6. The method according to claim 1, characterized in that, The second comprehensive benefit of the thermal power unit and energy storage equipment, based on the second predicted service life, the second regulation mileage, and the second regulation performance index, includes: Based on the second predicted service life, the second regulation mileage, and the second regulation performance index, the second annual frequency regulation revenue of the thermal power unit and energy storage equipment is obtained. The second annual frequency regulation revenue = preset mileage unit price * second regulation mileage * second regulation performance index. Based on the second predicted lifespan, the second annual frequency regulation revenue, the preset initial capacity cost, and the preset annual average operation and maintenance cost, the second comprehensive revenue of the thermal power unit and the energy storage equipment is obtained.

7. The method according to claim 5, characterized in that, Also includes: If the error between the first predicted service life and the second predicted service life is less than 10%, the error between the first adjustment mileage and the second adjustment mileage is less than 10%, and the error between the first adjustment performance index and the second adjustment performance index is less than 10%, then the configuration scheme consisting of the target energy storage power and the target operation strategy is determined to be a reasonable scheme.

8. A configuration device for energy storage equipment in a thermal power unit, characterized in that, include: The initial energy storage power determination module obtains multiple initial energy storage powers to be verified for the energy storage device based on the historical operating power and historical frequency regulation commands of the thermal power unit within a preset time period. The first indicator acquisition module is connected to the initial energy storage power determination module. Based on the historical operating power, the historical frequency regulation command and each initial energy storage power, it obtains the first predicted service life, the first regulation mileage and the first regulation performance index corresponding to the energy storage device supplementing the thermal power unit's lack of regulation power through each initial energy storage frequency. The lack of regulation power is the regulation power that the historical operating power lacks relative to the historical regulation frequency command in the past time period. The first revenue acquisition module is connected to the first indicator acquisition module. Based on the first predicted service life, the first adjustment mileage and the first adjustment performance indicator, it obtains the first comprehensive revenue of the thermal power unit and the energy storage equipment. The target energy storage power acquisition module is connected to the first revenue acquisition module, and takes the initial energy storage power corresponding to the highest comprehensive revenue as the target energy storage power. The second indicator acquisition module is connected to the target energy storage power acquisition module. In actual operation, based on the target energy storage power, it obtains the second predicted service life, second adjustment mileage and second adjustment performance of the energy storage device under different preset operation strategies. The second revenue acquisition module, connected to the second indicator acquisition module, obtains the second comprehensive revenue of the thermal power unit and the energy storage equipment based on the second predicted service life, the second adjustment mileage and the second adjustment performance indicator. The energy storage device configuration module is connected to the second revenue acquisition module. It takes the preset operation strategy corresponding to the highest second comprehensive revenue as the target operation strategy, so as to configure the energy storage device through the target energy storage power and the target operation strategy.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor, when executing the computer program, implements the method as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to perform the method of any one of claims 1-7.

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