Energy storage adjustment and control method and system, and storage medium and electronic device

Abstract

An energy storage adjustment and control method and system, and a storage medium and an electronic device. The energy storage adjustment and control method comprises: determining collected first operation state data and second operation state data of an energy storage control device (S101); on the basis of the first operation state data and the second operation state data, determining the maximum allowable charge power and the maximum allowable discharge power of the energy storage control device (S102); on the basis of the maximum allowable charge power, the maximum allowable discharge power and real-time active power of the energy storage control device, performing classification to obtain three operating conditions of the energy storage control device (S103); determining adjustable amounts respectively corresponding to the active power of the energy storage control device under the three operating conditions (S104); receiving an energy storage capacity adjustment instruction (S105); on the basis of the energy storage capacity adjustment instruction, generating an execution amount (S106); on the basis of the execution amount and the adjustable amounts, determining a measure amount of the energy storage control device (S107); and on the basis of the measure amount, sending an active power adjustment instruction to the energy storage control device (S108).

Description

Energy storage regulation control method, system, storage medium and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202410812945.7, filed on June 21, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of power system automation, for example, to an energy storage regulation control method, system, storage medium and electronic device. BACKGROUND

[0003] With the large-scale access of new energy to the power system, the importance of energy storage systems is increasingly prominent. Energy storage plays a crucial role in new-type power systems. As a high-quality flexible regulation resource in the power grid, energy storage has the dual attributes of power supply and load, can solve the problem of rapid fluctuation of new energy output, and provide necessary system inertia support to the power system, improving the controllability and flexibility of the energy storage system. Due to the characteristics of precise control, fast response, flexible configuration and four-quadrant flexible regulation power, energy storage has the ability to participate in the operation and control of the power system and security and stability control.

[0004] However, the current control of energy storage controllable resources has the following problems:

[0005] 1. At present, by directly disconnecting the energy storage grid-connected line switch or the low-voltage side collection line switch of the main transformer, the regulation of the energy storage controllable resources constructed with the energy storage station or new energy station is realized. This method is easy to cause large overcut, and does not take advantage of the fast response and precise control of energy storage controllable resources.

[0006] 2. The current energy storage control method can only realize the regulation of energy storage controllable resources by cutting off the energy storage line, and a large amount of energy storage controllable capacity is not effectively utilized. SUMMARY

[0007] According to a first aspect of the present application, a method for regulating and controlling energy storage is provided. The method comprises determining first operating state data and second operating state data of an energy storage control device; determining maximum allowed charging power and maximum allowed discharging power of the energy storage control device according to the first operating state data and the second operating state data; dividing the energy storage control device into three operating conditions according to the maximum allowed charging power, the maximum allowed discharging power and real-time active power of the energy storage control device; determining adjustable amounts of the energy storage control device corresponding to the three operating conditions respectively; receiving an instruction for adjusting energy storage capacity; generating an execution amount according to the instruction for adjusting energy storage capacity; determining a measure amount of the energy storage control device according to the execution amount and the adjustable amounts; and sending an active power adjustment instruction to the energy storage control device according to the measure amount to adjust the active power of the energy storage control device.

[0008] According to some embodiments of the first aspect of the present application, the first operating state data comprises energy storage state of charge, real-time active power, upper limit of charging power, upper limit of discharging power and rated capacity; and the second operating state data comprises minimum duration of charging and discharging, upper limit of energy storage state of charge and lower limit of energy storage state of charge.

[0009] According to some embodiments of the first aspect of the present application, the maximum allowed charging power and the maximum allowed discharging power of the energy storage control device are determined according to the first operating state data and the second operating state data. The calculation formula of the maximum allowed charging power is P_charge=PN*(SOC_U-SOC) / Tset, and the calculation formula of the maximum allowed discharging power is P_discharge=PN*(SOC-SOC_L) / Tset, wherein P_charge is the absolute value of the maximum allowed charging power, P_discharge is the maximum allowed discharging power, Tset is the minimum duration of charging and discharging, PN is the rated capacity, SOC is the real-time state of charge of the energy storage, SOC_U is the upper limit of the energy storage state of charge, and SOC_L is the lower limit of the energy storage state of charge. The final maximum allowed charging power is obtained by comparing the calculated maximum allowed charging power with the upper limit of the charging power, wherein the absolute value of the maximum allowed charging power P_charge is not greater than the upper limit of the charging power Plim_charge. The final maximum allowed discharging power is obtained by comparing the calculated maximum allowed discharging power with the upper limit of the discharging power, wherein the maximum allowed discharging power P_discharge is not greater than the upper limit of the discharging power Plim_discharge.

[0010] According to some embodiments of the first aspect of the application, the energy storage control device is divided into three operating conditions according to the maximum allowed charging power, the maximum allowed discharging power and the real-time active power of the energy storage control device; the energy storage control device is a controllable energy storage unit resource, in the case of -P_charge≤P≤P_discharge, the energy storage control device is the first operating condition, the energy storage control device is a controllable energy storage unit resource, and the adjustment range of the active power is P to -P_charge; in the case of P>P_discharge, the energy storage control device is the second operating condition, the energy storage control device is a controllable energy storage unit resource, and the adjustment range of the active power is P_discharge to -P_charge; in the case of P<-P_charge, the energy storage control device is the third operating condition, the energy storage control device is an uncontrollable energy storage unit resource; wherein -P_charge is the maximum allowed charging power, P_discharge is the maximum allowed discharging power, and P is the real-time active power of the energy storage control device.

[0011] According to some embodiments of the first aspect of the application, in the case of the energy storage control device as a controllable energy storage unit resource, the active power of the energy storage control device is determined to correspond to the adjustable amount in the three operating conditions respectively; the calculation formula of the unit adjustable amount of the first operating condition and the second operating condition is Pkt_jz=P+P_charge, wherein Pkt_jz is the unit adjustable amount; the adjustable amount of the active power in the first operating condition ranges from 0 to Pkt_jz; in the second operating condition, the calculation formula of the minimum unit adjustable amount of the energy storage control device as a controllable energy storage unit resource is Pkt_jz_min=P-P_discharge, wherein Pkt_jz_min is the minimum unit adjustable amount of the energy storage control device as a controllable energy storage unit resource, and the adjustable amount of the active power in the second operating condition ranges from Pkt_jz_min to Pkt_jz.

[0012] According to some embodiments of the first aspect of the application, after determining the adjustable amount of the active power of the energy storage control device corresponding to the three operating conditions respectively, the method further comprises determining the power loss amount in the third operating condition; wherein the execution amount comprises the power loss amount; in the third operating condition, the energy storage control device is an energy storage uncontrollable unit resource, the unit adjustable amount Pkt_jz is 0, the active power is adjusted to 0 or to the maximum allowed charging power-P_charge, the energy storage control device generates a corresponding power loss amount, and the calculation formula of the power loss amount is: Ploss_jz1=-P, Ploss_jz2=-P_charge-P, wherein Ploss_jz1 is the unit power loss amount generated when the active power is adjusted to 0, and Ploss_jz2 is the unit power loss amount generated when the active power is adjusted to the maximum allowed charging power-P_charge.

[0013] According to some embodiments of the first aspect of the application, the energy storage control device is divided into three operating conditions according to the maximum allowed charging power, the maximum allowed discharging power and the real-time active power of the energy storage control device; the energy storage control device is an energy storage controllable load resource, in the case of-P_charge≤P≤P_discharge, the energy storage control device is the first operating condition, the energy storage control device is an energy storage controllable load resource, and the adjustment range of the active power is P to P_discharge; in the case of P<-P_charge, the energy storage control device is the second operating condition, the energy storage control device is an energy storage controllable load resource, and the adjustment range of the active power is P_discharge to-P_charge; in the case of P>P_discharge, the energy storage control device is the third operating condition, the energy storage control device is an energy storage uncontrollable load resource; wherein-P_charge is the maximum allowed charging power, P_discharge is the maximum allowed discharging power, and P is the real-time active power of the energy storage control device.

[0014] According to some embodiments of the first aspect of the present application, in the case of the energy storage control device as an energy storage controllable load resource, the active power of the energy storage control device is determined to correspond to the adjustable amount in three operating conditions respectively; the calculation formula of the load adjustable amount in the first operating condition and the second operating condition is: Pkt_fh=P_discharge-P, wherein Pkt_fh is the load adjustable amount; in the first operating condition, the adjustable amount of the active power ranges from 0 to Pkt_fh; in the second operating condition, the calculation formula of the minimum value of the load adjustable amount of the energy storage control device as an energy storage controllable load resource is: Pkt_fh_min=-P_charge-P, wherein Pkt_fh_min is the minimum value of the load adjustable amount of the energy storage control device as an energy storage controllable load resource, and in the second operating condition, the adjustable amount of the active power ranges from Pkt_fh_min to Pkt_fh.

[0015] According to some embodiments of the first aspect of the present application, after determining the adjustable amount of the active power of the energy storage control device in three operating conditions respectively, the method further comprises determining the power loss amount in the third operating condition, wherein the execution amount comprises the power loss amount; in the third operating condition, the energy storage control device is an energy storage uncontrollable load resource, the load adjustable amount Pkt_fh is 0, the active power is adjusted to 0 or the maximum allowed discharge power P_discharge, the energy storage control device generates a corresponding power loss amount, and the calculation formula of the power loss amount is: Ploss_fh1=P and Ploss_fh2=P-P_discharge, wherein Ploss_fh1 is the load power loss amount generated when the active power is adjusted to 0, and Ploss_fh2 is the load power loss amount generated when the active power is adjusted to the maximum allowed discharge power P_discharge.

[0016] According to some embodiments of the first aspect of the present application, adjusting the energy storage capacity instruction comprises adjusting the energy storage unit capacity instruction, and in the case of the energy storage control device as an energy storage controllable unit resource, the adjusted energy storage unit capacity instruction is received; according to the adjusted energy storage unit capacity instruction, the adjusted energy storage unit capacity and the unit power loss amount are combined to generate the execution amount.

[0017] According to some embodiments of the first aspect of the present application, adjusting the energy storage capacity instruction comprises adjusting the energy storage load capacity instruction, and in the case of the energy storage control device as an energy storage controllable load resource, the adjusted energy storage load capacity instruction is received; according to the adjusted energy storage load capacity instruction, the adjusted energy storage load capacity and the load power loss amount are combined to generate the execution amount.

[0018] According to some embodiments of the first aspect of the present application, in the case of the energy storage control device as an energy storage controllable unit resource, the active power of the third operating condition is adjusted to 0 or the maximum allowed charging power; and according to the adjustable amount Pkt_jz of the unit in the first operating condition and the second operating condition and the preset measure amount allocation mode, the energy storage control device is allocated an execution amount.

[0019] According to some embodiments of the first aspect of the present application, in the case of the energy storage control device as an energy storage controllable load resource, the active power of the third operating condition is adjusted to 0 or the maximum allowed discharging power; and according to the adjustable amount Pkt_fh of the load in the first operating condition and the second operating condition and the preset measure amount allocation mode, the energy storage control device is allocated an execution amount.

[0020] According to the second aspect of the present application, an energy storage adjustment control system is provided, which comprises an energy storage stability control device and an energy storage control device. The energy storage stability control device determines the first operating state data and the second operating state data of the energy storage control device collected, determines the maximum allowed charging power and the maximum allowed discharging power of the energy storage control device according to the first operating state data and the second operating state data, divides the energy storage control device into three operating conditions according to the maximum allowed charging power, the maximum allowed discharging power and the real-time active power of the energy storage control device, determines the adjustable amount of the active power of the energy storage control device in the three operating conditions respectively, receives an adjustment energy storage capacity instruction, generates an execution amount according to the adjustment energy storage capacity instruction, determines a measure amount of the energy storage control device according to the execution amount and the adjustable amount, and sends an active power adjustment instruction to the energy storage control device according to the measure amount. The energy storage control device receives and executes the active power adjustment instruction to adjust the active power.

[0021] According to the third aspect of the present application, a non-volatile computer readable storage medium is provided, which stores a computer program. The computer program enables the energy storage adjustment control system to implement the energy storage adjustment control method as described above.

[0022] According to the fourth aspect of the present application, an electronic device is provided, which comprises one or more processors, a storage device for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement the energy storage adjustment control method as described above.

[0023] The technical scheme provided in the application can independently collect the operation state data of each energy storage control device through the communication between the energy storage stability control device and each energy storage control device, can determine the energy storage controllable resource information of the whole station according to the operation state data, and can determine the active power adjustment interval of the energy storage control device by dividing the operation conditions of the energy storage control device and determining the adjustable quantity corresponding to the operation conditions. In the adjustment interval, the active power of the energy storage control device is continuously adjustable. By giving priority to the power loss amount when the distribution execution amount is allocated, the power loss amount opposite to the adjustment of the energy storage capacity instruction can be made up.

[0024] The technical scheme provided in the application can accurately regulate the active power of the energy storage control device. In the case that the power system fails and needs to cut off the unit or load, the energy storage controllable resource in the energy storage regulation system can be adjusted first, the bidirectional, continuous and accurate control of the energy storage resource during the power grid fault can be realized in the mode of "adjusting instead of cutting off", the utilization rate of the energy storage capacity can be effectively improved, the unit and load loss during the fault can be reduced, and the controllable resource during the power grid fault can be expanded. BRIEF DESCRIPTION OF DRAWINGS

[0025] FIG. 1 shows a flowchart of an energy storage regulation control method according to an example embodiment of the application;

[0026] FIG. 2 shows a schematic diagram of an energy storage regulation control system according to an example embodiment of the application.

[0027] Reference signs: energy storage regulation control system 1; energy storage stability control device 11; energy storage control device 12. DETAILED DESCRIPTION

[0028] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the several views of the drawings, and description of the same elements will not be repeated.

[0029] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the techniques disclosed can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In these instances, well-known structures, methods, devices, implementations, materials, and operations are not shown or described in detail.

[0030] Furthermore, the terms "comprise" and "include" and variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a list of steps or elements is not necessarily limited to those listed steps or elements but can include other not-listed steps or elements, or can further include additional or alternative steps or elements for carrying out the purpose or purposes of those process, method, system, product, or device.

[0031] The terms "first", "second", and the like in the description and in the claims of the present application and above drawings are used to distinguish different objects, rather than to describe a particular order.

[0032] The technical solutions of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. The described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0033] According to a first aspect of the present application, a method for energy storage regulation control is provided. FIG. 1 shows a flowchart of the method for energy storage regulation control according to an embodiment of the present application.

[0034] Referring to FIG. 1, the method for energy storage control comprises steps S101-S108. Exemplarily, the method for energy storage control can be performed by an energy storage stable control device.

[0035] In step S101, the energy storage stable control device determines the first operating state data and the second operating state data of the energy storage control device collected.

[0036] Exemplarily, the energy storage control device can be a power conversion system (PCS) or a power management system (PMS).

[0037] Optionally, the first operating state data can be the state data of the energy storage control device collected by the energy storage control device itself. For example, the first operating state data can be data such as state of charge, real-time active power, upper limit of charging power, upper limit of discharging power, and rated capacity. The second operating state data can be the state data of the energy storage control device set according to user demand. For example, the second operating state data can be data such as minimum continuous charging and discharging time, upper limit of state of charge, and lower limit of state of charge.

[0038] Exemplarily, the communication connection mode of the energy storage stability control device and each energy storage PCS can be a Generic Object Oriented Substation Event (GOOSE) communication mechanism.

[0039] By determining the first operating state data and the second operating state data, the energy storage stability control device can determine the energy storage controllable resource information of the whole station.

[0040] In step S102, according to the first operating state data and the second operating state data of the energy storage control device, the energy storage stability control device determines the maximum allowed charging power and the maximum allowed discharging power of the energy storage control device.

[0041] For example, the maximum allowed charging power refers to the maximum instantaneous charging power that the energy storage control device can withstand, and the maximum allowed discharging power refers to the maximum instantaneous discharging power that the energy storage control device can withstand.

[0042] Alternatively, the energy storage stability control device calculates the maximum allowed charging power according to the following formula: P_charge=PN*(SOC_U-SOC) / Tset;

[0043] The energy storage stability control device calculates the maximum allowed discharging power according to the following formula: P_discharge=PN*(SOC-SOC_L) / Tset;

[0044] Wherein, P_charge is the absolute value of the maximum allowed charging power, P_discharge is the maximum allowed discharging power, Tset is the shortest continuous charging and discharging time, PN is the rated capacity, SOC is the real-time state of charge of the energy storage, SOC_U is the upper limit of the state of charge of the energy storage, and SOC_L is the lower limit of the state of charge of the energy storage.

[0045] The energy storage stability control device compares the calculated maximum allowed charging power with the charging power upper limit to obtain the final maximum allowed charging power, wherein the absolute value P_charge of the maximum allowed charging power is not greater than the charging power upper limit Plim_charge.

[0046] The energy storage stability control device compares the calculated maximum allowed discharging power with the discharging power upper limit to obtain the final maximum allowed discharging power, wherein the maximum allowed discharging power P_discharge is not greater than the discharging power upper limit Plim_discharge.

[0047] Exemplarily, the energy storage stability control device determines the first operating state data and the second operating state data of the energy storage PCS.

[0048] For example, the shortest duration of charging and discharging time Tset of each energy storage PCS is 0.5h, the upper limit of charging power Plim_charge is 2.5MW, the upper limit of discharging power Plim_discharge is 2.5MW, the rated capacity PN is 3.0MW·h, the lower limit of state of charge SOC_L is 0.1, and the upper limit of state of charge SOC_U is 0.9. The real-time state of charge SOC of each energy storage, the absolute value of the maximum allowed charging power P_charge of the corresponding energy storage PCS, and the maximum allowed discharging power P_discharge of the corresponding energy storage PCS are as follows:

[0049] Energy storage PCS1: SOC=0.2, P_charge=2.5MW, P_discharge=0.6MW.

[0050] Energy storage PCS2: SOC=0.3, P_charge=2.5MW, P_discharge=1.2MW.

[0051] Energy storage PCS3: SOC=0.3, P_charge=2.5MW, P_discharge=1.2MW.

[0052] Energy storage PCS4: SOC=0.4, P_charge=2.5MW, P_discharge=1.8MW.

[0053] Energy storage PCS5: SOC=0.5, P_charge=2.4MW, P_discharge=2.4MW.

[0054] Energy storage PCS6: SOC=0.5, P_charge=2.4MW, P_discharge=2.4MW.

[0055] Energy storage PCS7: SOC=0.6, P_charge=1.8MW, P_discharge=2.5MW.

[0056] Energy storage PCS8: SOC=0.7, P_charge=1.2MW, P_discharge=2.5MW.

[0057] Energy storage PCS9: SOC=0.7, P_charge=1.2MW, P_discharge=2.5MW.

[0058] Energy storage PCS10: SOC=0.8, P_charge=0.6MW, P_discharge=2.5MW.

[0059] According to the first operating state data and the second operating state data of the energy storage control device, the energy storage stability control device determines the maximum allowed charging power and the maximum allowed discharging power of the energy storage control device.

[0060] In step S103, according to the maximum allowed charging power, the maximum allowed discharging power and the real-time active power of the energy storage control device, the energy storage stability control device divides the energy storage control device into three operating conditions.

[0061] Further, according to the example embodiment, the three operating conditions of the energy storage are determined according to the real-time active power P of the energy storage PCS, the maximum allowed charging power P_charge and the maximum allowed discharging power P_discharge. In the case of P being positive, the energy storage PCS discharges; in the case of P being negative, the energy storage PCS charges.

[0062] Optionally, in the case of the energy storage PCS as an energy storage controllable unit resource, the energy storage stability control device adjusts the energy storage controllable resource by reducing the active power of the energy storage PCS, i.e. reducing the discharging power of the energy storage PCS or increasing the charging power of the energy storage PCS.

[0063] In the case of -P_charge≤P≤P_discharge, the energy storage PCS is in the first operating condition, the energy storage PCS is an energy storage controllable unit resource, and the adjustment range of the active power is P to -P_charge.

[0064] In the case of P>P_discharge, the energy storage PCS is in the second operating condition, the energy storage PCS is an energy storage controllable unit resource, and the adjustment range of the active power is P_discharge to -P_charge.

[0065] In the case of P<-P_charge, the energy storage PCS is in the third operating condition, and the energy storage PCS is an energy storage uncontrollable unit resource.

[0066] Optionally, in the case of the energy storage PCS as an energy storage controllable load resource, the energy storage stability control device adjusts the energy storage controllable resource by increasing the active power of the energy storage PCS, i.e. reducing the charging power of the energy storage PCS or increasing the discharging power of the energy storage PCS.

[0067] In the case of -P_charge≤P≤P_discharge, the energy storage PCS is in the first operating condition, the energy storage PCS is an energy storage controllable load resource, and the adjustment range of the active power is P to P_discharge.

[0068] In a case where P < -P_charge, the energy storage PCS is in the second operating condition, the energy storage PCS is an energy storage controllable load resource, and the regulation range of the active power is P_discharge to -P_charge.

[0069] In a case where P > P_discharge, the energy storage PCS is in the third operating condition, and the energy storage PCS is an energy storage uncontrollable load resource.

[0070] In step S104, the energy storage stability control device determines the adjustable amount of the active power of the energy storage control device in the three operating conditions respectively.

[0071] According to an example embodiment, the adjustable amount can include a unit adjustable amount and a load adjustable amount. The unit adjustable amount is the adjustable amount in a case where the energy storage PCS is an energy storage controllable unit resource, and the load adjustable amount is the adjustable amount in a case where the energy storage PCS is an energy storage controllable load resource.

[0072] According to an example embodiment, in a case where the energy storage PCS is an energy storage controllable unit resource, the energy storage stability control device calculates the unit adjustable amount in the first operating condition and the second operating condition according to the following formula: Pkt_jz = P + P_charge.

[0073] In the formula, Pkt_jz is the unit adjustable amount.

[0074] In the first operating condition, the adjustable range of the active power is 0 to Pkt_jz.

[0075] In the second operating condition, the calculation formula of the minimum value of the unit adjustable amount of the energy storage PCS as the energy storage controllable unit resource is: Pkt_jz_min = P - P_discharge.

[0076] In the formula, Pkt_jz_min is the minimum value of the unit adjustable amount, and the adjustable range of the active power in the second operating condition is Pkt_jz_min to Pkt_jz.

[0077] Optionally, in the third operating condition, the energy storage PCS is an energy storage uncontrollable unit resource, Pkt_jz is 0, the active power is adjusted to 0 or -P_charge, and in a case where the active power is adjusted to 0 or -P_charge, the energy storage PCS generates a corresponding power loss amount.

[0078] The energy storage stability control device calculates the power loss amount according to the following formula: Ploss_jz1 = -P, Ploss_jz2 = -P_charge - P.

[0079] Wherein, Ploss_jz1 is the power loss of the unit when the active power is adjusted to 0, and Ploss_jz2 is the power loss of the unit when the active power is adjusted to -P_charge.

[0080] For example, the real-time active power of each energy storage PCS is P, and the operation condition of the energy storage PCS determined by the energy storage stability control device, the calculated adjustable amount of the unit, the minimum adjustable amount of the unit and the power loss of the unit are:

[0081] Energy storage PCS1: P = 2.0 MW, energy storage PCS1 is the second operation condition, Pkt_jz = 4.5 MW, Pkt_jz_min = 1.4 MW.

[0082] Energy storage PCS2: P = 1.5 MW, energy storage PCS2 is the second operation condition, Pkt_jz = 4.0 MW, Pkt_jz_min = 0.3 MW.

[0083] Energy storage PCS3: P = 1.0 MW, energy storage PCS3 is the first operation condition, Pkt_jz = 3.5 MW.

[0084] Energy storage PCS4: P = 0.5 MW, energy storage PCS4 is the first operation condition, Pkt_jz = 3.0 MW.

[0085] Energy storage PCS5: P = 0.0 MW, energy storage PCS5 is the first operation condition, Pkt_jz = 2.4 MW.

[0086] Energy storage PCS6: P = -0.5 MW, energy storage PCS6 is the first operation condition, Pkt_jz = 1.9 MW.

[0087] Energy storage PCS7: P = -1.0 MW, energy storage PCS7 is the first operation condition, Pkt_jz = 0.8 MW.

[0088] Energy storage PCS8: P = -1.0 MW, energy storage PCS8 is the first operation condition, Pkt_jz = 0.2 MW.

[0089] Energy storage PCS9: P = -1.5 MW, energy storage PCS9 is the third operation condition, Ploss_jz1 = 1.5 MW; Ploss_jz2 = 0.3 MW.

[0090] Energy storage PCS10: P = -2.0 MW, energy storage PCS10 is the third operation condition, Ploss_jz1 = 2.0 MW; Ploss_jz2 = 1.4 MW.

[0091] According to the example embodiment, in the case that the energy storage PCS is an energy storage controllable load resource, the energy storage stability control device calculates the load adjustable amount in the first operating mode and the second operating mode according to the following formula: Pkt_fh = P_discharge - P;

[0092] wherein Pkt_fh is the load adjustable amount.

[0093] In the first operating mode, the adjustable range of the active power is 0 to Pkt_fh.

[0094] In the second operating mode, the formula for calculating the minimum value of the load adjustable amount of the energy storage PCS as an energy storage controllable load resource is: Pkt_fh_min = -P_charge - P;

[0095] wherein Pkt_fh_min is the minimum value of the load adjustable amount, and the adjustable range of the active power in the second operating mode is Pkt_fh_min to Pkt_fh.

[0096] Optionally, in the third operating mode, the energy storage PCS is an energy storage uncontrollable load resource, Pkt_fh is 0, and the active power is adjusted to 0 or P_discharge. In the case that the active power is adjusted to 0 or P_discharge, the energy storage PCS generates a corresponding power loss amount.

[0097] The energy storage stability control device calculates the power loss amount according to the following formula: Ploss_fh1 = P, Ploss_fh2 = P - P_discharge.

[0098] wherein Ploss_fh1 is the load power loss amount generated when the active power is adjusted to 0, and Ploss_fh2 is the load power loss amount generated when the active power is adjusted to P_discharge.

[0099] For example, the real-time active power of each energy storage PCS is P, and the operating mode of the corresponding energy storage PCS determined by the energy storage stability control device, the calculated load adjustable amount, the minimum value of the load adjustable amount, and the load power loss amount are as follows:

[0100] Energy storage PCS1: P = 2.0 MW, energy storage PCS1 is in the third operating mode, Ploss_fh1 = 2.0 MW, and Ploss_fh2 = 1.4 MW.

[0101] Energy storage PCS2: P = 1.5 MW, energy storage PCS2 is in the third operating mode, Ploss_fh1 = 1.5 MW, and Ploss_fh2 = 0.3 MW.

[0102] Energy storage PCS 3: P = 1.0 MW, the energy storage PCS 3 is in the first operating condition, Pkt_fh = 0.2 MW.

[0103] Energy storage PCS 4: P = 0.5 MW, the energy storage PCS 4 is in the first operating condition, Pkt_fh = 1.3 MW.

[0104] Energy storage PCS 5: P = 0.0 MW, the energy storage PCS 5 is in the first operating condition, Pkt_fh = 2.4 MW.

[0105] Energy storage PCS 6: P = -0.5 MW, the energy storage PCS 6 is in the first operating condition, Pkt_fh = 2.9 MW.

[0106] Energy storage PCS 7: P = -1.0 MW, the energy storage PCS 7 is in the first operating condition, Pkt_fh = 3.5 MW.

[0107] Energy storage PCS 8: P = -1.0 MW, the energy storage PCS 8 is in the first operating condition, Pkt_fh = 3.5 MW.

[0108] Energy storage PCS 9: P = -1.5 MW, the energy storage PCS 9 is in the second operating condition, Pkt_fh = 4.0 MW, Pkt_fh_min = 0.3 MW.

[0109] Energy storage PCS 10: P = -2.0 MW, the energy storage PCS 10 is in the second operating condition, Pkt_fh = 4.5 MW, Pkt_fh_min = 1.4 MW.

[0110] Through the above example embodiments, by dividing the operating conditions of the energy storage control device and determining the adjustable quantity corresponding to the operating conditions, the adjustment range of the active power of the energy storage control device can be determined. Within the adjustment range, the active power of the energy storage control device is continuously adjustable. Without using the method of disconnecting the energy storage grid connection switch or the low-voltage side collection line switch of the main transformer to remove the unit or load resource. By giving priority to the power loss amount when distributing the execution amount, the power loss amount opposite to the adjustment of the energy storage capacity instruction can be compensated, thereby realizing precise regulation and control of the energy storage control resource.

[0111] In step S105, the energy storage stability control device receives the adjustment energy storage capacity instruction.

[0112] The adjustment energy storage capacity instruction comes from an external device in communication connection with the energy storage stability control device. For example, the external device can be a superior stability control master station or a stability control substation.

[0113] Optionally, the adjustment energy storage capacity instruction includes an adjustment energy storage unit capacity instruction and an adjustment energy storage load capacity instruction.

[0114] According to an example embodiment, the energy storage stability control device receives the energy storage unit capacity adjustment instruction when the energy storage PCS is an energy storage controllable unit resource, and generates the execution amount according to the energy storage unit capacity adjustment instruction.

[0115] In step S106, the energy storage stability control device generates the execution amount according to the energy storage capacity adjustment instruction.

[0116] According to an example embodiment, the energy storage unit capacity adjustment instruction includes energy storage unit capacity adjustment data, and the energy storage load capacity adjustment instruction includes energy storage load capacity adjustment data.

[0117] According to an example embodiment, the energy storage stability control device receives the energy storage unit capacity adjustment instruction when the energy storage PCS is an energy storage controllable unit resource, and generates the execution amount according to the energy storage unit capacity adjustment instruction.

[0118] Optionally, the execution amount includes a unit power loss amount. The energy storage unit capacity adjustment data and the unit power loss amount are added to generate the execution amount.

[0119] According to an example embodiment, the energy storage stability control device receives the energy storage load capacity adjustment instruction when the energy storage PCS is an energy storage controllable load resource, and generates the execution amount according to the energy storage load capacity adjustment instruction.

[0120] Optionally, the execution amount includes a load power loss amount. The energy storage load capacity adjustment data and the load power loss amount are added to generate the execution amount.

[0121] In step S107, the energy storage stability control device determines the measure amount of the energy storage control device according to the execution amount and the adjustable amount.

[0122] According to an example embodiment, the energy storage stability control device adjusts the active power of the energy storage PCS in the third operating condition to 0 or to the maximum allowed charging power; and according to the execution amount, the adjustable amount of each energy storage PCS, and a preset measure amount distribution manner, the energy storage stability control device distributes the execution amount to determine the measure amount of each energy storage PCS in the first operating condition and the second operating condition.

[0123] According to an example embodiment, the preset measure amount distribution manner includes, but is not limited to, a measure amount distribution manner based on the access order of each energy storage control device, or a measure amount distribution manner based on the proportion of the adjustable amount of each energy storage control device. For example, the access order of each energy storage PCS is the preset measure amount distribution manner.

[0124] According to the example embodiment, in the case of the energy storage PCS being an energy storage controllable unit resource, the measure quantity of each energy storage PCS under the first operating condition allocated by the energy storage stability control device is any value between 0 and the unit adjustable quantity Pkt_jz; the measure quantity of each energy storage PCS under the second operating condition allocated by the energy storage stability control device is any value between the minimum unit adjustable quantity Pkt_jz_min and the unit adjustable quantity Pkt_jz. The measure quantity of each energy storage PCS is determined according to the access sequence of each energy storage PCS under the first operating condition and the second operating condition, and the sum of the measure quantities of each energy storage PCS is greater than or equal to the execution quantity.

[0125] For example, in the case of adjusting the active power of each energy storage PCS under the third operating condition to the maximum allowed charging power, the measure quantity of each energy storage PCS is:

[0126] After the energy storage stability control device receives the adjustment of the energy storage unit capacity 1.0 MW and the additional unit power loss 1.7 MW, the execution quantity 2.7 MW needs to be allocated, and the measure quantity allocated to the energy storage PCS 1 is 2.7 MW.

[0127] After the energy storage stability control device receives the adjustment of the energy storage unit capacity 2.9 MW and the additional unit power loss 1.7 MW, the execution quantity 4.6 MW needs to be allocated, and the measure quantity allocated to the energy storage PCS 1 is 4.5 MW, and the measure quantity allocated to the energy storage PCS 2 is 0.3 MW (the minimum unit adjustable quantity Pkt_jz_min is 0.3 MW).

[0128] After the energy storage stability control device receives the adjustment of the energy storage unit capacity 8.3 MW and the additional unit power loss 1.7 MW, the execution quantity 10.0 MW needs to be allocated, and the measure quantity allocated to the energy storage PCS 1 is 4.5 MW, the measure quantity allocated to the energy storage PCS 2 is 4.0 MW, and the measure quantity allocated to the energy storage PCS 3 is 1.5 MW.

[0129] After the energy storage stability control device receives the adjustment of the energy storage unit capacity 15.0 MW and the additional unit power loss 1.7 MW, the execution quantity 16.7 MW needs to be allocated, and the measure quantity allocated to the energy storage PCS 1 is 4.5 MW, the measure quantity allocated to the energy storage PCS 2 is 4.0 MW, the measure quantity allocated to the energy storage PCS 3 is 3.5 MW, the measure quantity allocated to the energy storage PCS 4 is 3.0 MW, and the measure quantity allocated to the energy storage PCS 5 is 1.7 MW. This allocation result corresponds to scenario one.

[0130] For example, in the case of adjusting the active power of each energy storage PCS under the third operating condition to 0, the measure quantity of each energy storage PCS is:

[0131] The energy storage stability control device receives the regulation of the energy storage unit capacity 1.2MW, and after adding the power loss of the unit 3.5MW, the execution amount 4.7MW needs to be distributed, then the measure amount distributed to the energy storage PCS1 is 4.5MW, and the measure amount distributed to the energy storage PCS2 is 0.3MW (the minimum value of the adjustable amount of the unit Pkt_jz_min is 0.3MW).

[0132] The energy storage stability control device receives the regulation of the energy storage unit capacity 8.0MW, and after adding the power loss of the unit 3.5MW, the execution amount 11.5MW needs to be distributed, then the measure amount distributed to the energy storage PCS1 is 4.5MW, the measure amount distributed to the energy storage PCS2 is 4.0MW, and the measure amount distributed to the energy storage PCS3 is 3.0MW.

[0133] According to the example embodiment, the energy storage stability control device adjusts the active power of the energy storage PCS in the third operating condition to 0 or to the maximum allowed discharge power; according to the execution amount, the adjustable amount of each energy storage PCS, and the preset measure amount distribution mode, the energy storage stability control device distributes the execution amount to form the measure amount of each energy storage PCS in the first operating condition and the second operating condition.

[0134] According to the example embodiment, the preset measure amount distribution mode includes but is not limited to the measure amount distribution mode in the order of the access of each energy storage control device, or the measure amount distribution mode in the proportion of the adjustable amount of each energy storage control device. For example, the order of the access of each energy storage PCS is the preset measure amount distribution mode.

[0135] According to the example embodiment, in the case of the energy storage PCS being the energy storage controllable load resource, the energy storage stability control device distributes the measure amount of each energy storage PCS in the first operating condition to be any value between 0 and the load adjustable amount Pkt_fh; the energy storage stability control device distributes the measure amount of each energy storage PCS in the second operating condition to be any value between the minimum value of the load adjustable amount Pkt_fh_min and the load adjustable amount Pkt_fh. The measure amount of each energy storage PCS is determined according to the order of the access of each energy storage PCS in the first operating condition and the second operating condition, and the sum of the measure amount of each energy storage PCS is greater than or equal to the execution amount.

[0136] For example, in the case of adjusting the active power of each energy storage PCS in the third operating condition to the maximum allowed discharge power, the measure amount of each energy storage PCS is:

[0137] The energy storage stability control device receives the regulation of the energy storage load capacity 1.0MW, and after adding the power loss of the load 1.7MW, the execution amount 2.7MW needs to be distributed, then the measure amount distributed to the energy storage PCS3 is 0.2MW, the measure amount distributed to the energy storage PCS4 is 1.3MW, and the measure amount distributed to the energy storage PCS5 is 1.2MW.

[0138] The energy storage stability control device receives the regulation of the energy storage load capacity 15.0MW, and the additional load power loss 1.7MW, and needs to distribute the execution amount 16.7MW, then the measure amount distributed to the energy storage PCS3 is 0.2MW, the measure amount distributed to the energy storage PCS4 is 1.3MW, the measure amount distributed to the energy storage PCS5 is 2.4MW, the measure amount distributed to the energy storage PCS6 is 2.9MW, the measure amount distributed to the energy storage PCS7 is 3.5MW, the measure amount distributed to the energy storage PCS8 is 3.5MW, and the measure amount distributed to the energy storage PCS9 is 2.9MW.

[0139] The energy storage stability control device receives the regulation of the energy storage load capacity 17.0MW, and the additional load power loss 1.7MW, and needs to distribute the execution amount 18.7MW, then the measure amount distributed to the energy storage PCS3 is 0.2MW, the measure amount distributed to the energy storage PCS4 is 1.3MW, the measure amount distributed to the energy storage PCS5 is 2.4MW, the measure amount distributed to the energy storage PCS6 is 2.9MW, the measure amount distributed to the energy storage PCS7 is 3.5MW, the measure amount distributed to the energy storage PCS8 is 3.5MW, the measure amount distributed to the energy storage PCS9 is 4MW, and the measure amount distributed to the energy storage PCS10 is 1.4MW (the minimum value of the load adjustable amount Pkt_fh_min is 1.4MW).

[0140] For example, in the case of adjusting the active power of each energy storage PCS in the third operating condition to 0, the measure amount of each energy storage PCS is:

[0141] The energy storage stability control device receives the regulation of the energy storage load capacity 1.0MW, and the additional load power loss 3.5MW, and needs to distribute the execution amount 4.5MW, then the measure amount distributed to the energy storage PCS3 is 0.2MW, the measure amount distributed to the energy storage PCS4 is 1.3MW, the measure amount distributed to the energy storage PCS5 is 2.4MW, and the measure amount distributed to the energy storage PCS6 is 0.6MW.

[0142] The energy storage stability control device receives the regulation of the energy storage load capacity 10.0MW, and the additional load power loss 3.5MW, and needs to distribute the execution amount 13.5MW, then the measure amount distributed to the energy storage PCS3 is 0.2MW, the measure amount distributed to the energy storage PCS4 is 1.3MW, the measure amount distributed to the energy storage PCS5 is 2.4MW, the measure amount distributed to the energy storage PCS6 is 2.9MW, the measure amount distributed to the energy storage PCS7 is 3.5MW, and the measure amount distributed to the energy storage PCS8 is 3.2MW. This distribution result corresponds to scenario two.

[0143] In step S108, according to the measure amount, the energy storage stability control device sends an active power adjustment instruction to the energy storage control device to adjust the active power of the energy storage control device.

[0144] According to an example embodiment, the active power adjustment instruction can include an active power target value.

[0145] According to an example embodiment, in the case of a storage PCS being a storage controllable unit resource, the active power target value of each storage PCS in the first operating condition and the second operating condition can be the real-time active power minus the measure quantity. The storage stability control device sends the corresponding active power target value to each storage PCS.

[0146] For example, in scenario one, in the case of a storage PCS being a storage controllable unit resource, the active power of each storage PCS in the third operating condition is adjusted to the maximum allowed charging power. After the storage stability control device receives the adjusted storage unit capacity 15.0 MW and the additional unit power loss 1.7 MW, the execution quantity 16.7 MW needs to be distributed, the measure quantity distributed to storage PCS1 is 4.5 MW, the measure quantity distributed to storage PCS2 is 4.0 MW, the measure quantity distributed to storage PCS3 is 3.5 MW, the measure quantity distributed to storage PCS4 is 3.0 MW, and the measure quantity distributed to storage PCS5 is 1.7 MW. The active power adjustment instruction sent by the storage stability control device to each storage PCS is:

[0147] The active target value of -2.5 MW is sent to storage PCS1.

[0148] The active target value of -2.5 MW is sent to storage PCS2.

[0149] The active target value of -2.5 MW is sent to storage PCS3.

[0150] The active target value of -2.5 MW is sent to storage PCS4.

[0151] The active target value of -1.7 MW is sent to storage PCS5.

[0152] The active target value of -1.2 MW is sent to storage PCS9.

[0153] The active target value of -0.6 MW is sent to storage PCS10.

[0154] According to an example embodiment, in the case of a storage PCS being a storage controllable load resource, the active power target value of each storage PCS in the first operating condition and the second operating condition can be the real-time active power plus the measure quantity. The storage stability control device sends the corresponding active power target value to each storage PCS.

[0155] For example, in scenario two, the energy storage PCS is an energy storage controllable load resource, the active power of each energy storage PCS in the third operating condition is adjusted to 0, the energy storage stability control device receives the adjusted energy storage load capacity of 10.0 MW, and after adding the load power loss of 3.5 MW, the execution amount of 13.5 MW needs to be distributed, the measure amount of 0.2 MW is distributed to the energy storage PCS 3, the measure amount of 1.3 MW is distributed to the energy storage PCS 4, the measure amount of 2.4 MW is distributed to the energy storage PCS 5, the measure amount of 2.9 MW is distributed to the energy storage PCS 6, the measure amount of 3.5 MW is distributed to the energy storage PCS 7, and the measure amount of 3.2 MW is distributed to the energy storage PCS 8. The active power adjustment instruction sent by the energy storage stability control device to each energy storage PCS is:

[0156] The active target value sent to the energy storage PCS 1 is 0.0 MW.

[0157] The active target value sent to the energy storage PCS 2 is 0.0 MW.

[0158] The active target value sent to the energy storage PCS 3 is 1.2 MW.

[0159] The active target value sent to the energy storage PCS 4 is 1.8 MW.

[0160] The active target value sent to the energy storage PCS 5 is 2.4 MW.

[0161] The active target value sent to the energy storage PCS 6 is 2.4 MW.

[0162] The active target value sent to the energy storage PCS 7 is 2.5 MW.

[0163] The active target value sent to the energy storage PCS 8 is 2.2 MW.

[0164] Through the above examples, the energy storage stability control device can independently collect the operating state data of each energy storage control device through communication with each energy storage control device, and can determine the controllable resource information of the entire station according to the operating state data. And by dividing the operating conditions of the energy storage control device and determining the adjustable amount corresponding to the operating condition, the adjustment range of the active power of the energy storage control device can be determined. Within the adjustment range, the active power of the energy storage control device is continuously adjustable. By giving priority to the power loss amount when distributing the execution amount, the power loss amount opposite to the adjustment of the energy storage capacity instruction can be compensated.

[0165] The technical scheme provided in the application can accurately regulate the active power of the energy storage control device. In the case that the power system fails and needs to remove the unit or load, the energy storage controllable resource of the energy storage control device can be first adjusted, the bidirectional, continuous and accurate control of the energy storage resource during the power grid failure can be realized in the mode of "adjusting instead of removing", the utilization rate of the energy storage capacity can be effectively improved, the unit and load loss during the failure can be reduced, and the controllable resource during the power grid failure is expanded.

[0166] According to the second aspect of the application, an energy storage adjustment control system is also provided. FIG. 2 shows a schematic diagram of an energy storage adjustment control system according to an example embodiment of the application.

[0167] Referring to FIG. 2, the energy storage adjustment control system 1 includes an energy storage stability control device 11 and an energy storage control device 12.

[0168] According to an example embodiment, the energy storage stability control device 11 determines the first operating state data and the second operating state data of the energy storage control device 12 collected; determines the maximum allowed charging power and the maximum allowed discharging power of the energy storage control device 12 according to the first operating state data and the second operating state data of the energy storage control device 12; divides the energy storage control device 12 into three operating conditions according to the maximum allowed charging power, the maximum allowed discharging power and the real-time active power of the energy storage control device 12; determines the adjustable amount of the active power of the energy storage control device 12 under the three operating conditions respectively; receives an energy storage capacity adjustment instruction, and generates an execution amount according to the energy storage capacity adjustment instruction; determines a measure amount of the energy storage control device 12 according to the execution amount and the adjustable amount; and sends an active power adjustment instruction to the energy storage control device 12 according to the measure amount.

[0169] The energy storage control device 12 receives and executes the active power adjustment instruction to adjust the active power.

[0170] According to an example embodiment, the energy storage adjustment control system 1 is used to execute the energy storage adjustment control method as described above. The process and calculation formula of the maximum allowed charging power, the maximum allowed discharging power, the adjustable amount and the power loss amount have been described in detail above, and will not be described here again.

[0171] The energy storage adjustment control system 1 can be composed of various system architectures. For example, the energy storage adjustment control system can be an energy storage panoramic monitoring system architecture composed of a safety and stability control device, an emergency state monitoring device, a source control terminal device and an energy storage PCS device; for another example, the energy storage adjustment control system can be a three-layer system architecture composed of an energy storage control terminal, an energy storage emergency state monitoring device and an energy storage PCS device; for another example, the energy storage adjustment control system can be a two-layer system architecture composed of an energy storage control terminal and an energy storage PCS device.

[0172] Through the above embodiments, the technical scheme of the present application can communicate with each energy storage control device through the energy storage stable control device, can independently collect the operation state data of each energy storage control device, can determine the energy storage controllable resource information of the whole station according to the operation state data, and can determine the adjustment interval of the active power of the energy storage control device by dividing the operation conditions of the energy storage control device and determining the adjustable quantity corresponding to the operation conditions. Within the adjustment interval, the active power of the energy storage control device is continuously adjustable.

[0173] By considering the power loss amount when the distribution execution amount is given priority, the power loss amount opposite to the adjustment of the energy storage capacity instruction can be made up.

[0174] The technical scheme provided by the present application can accurately regulate the active power of the energy storage control device. In the case that the power system fails and needs to cut off the unit or load, the energy storage controllable resource in the energy storage regulation system can be adjusted first, and the bidirectional, continuous and accurate control of the energy storage resource during the power grid failure can be realized in the manner of “adjusting instead of cutting off”, which can effectively improve the utilization rate of the energy storage capacity, reduce the unit and load loss during the failure, and thus expand the controllable resource during the power grid failure.

[0175] According to the third aspect of the present application, a non-volatile computer readable storage medium is also provided, which stores a computer program capable of implementing the energy storage regulation control method as described above.

[0176] According to the fourth aspect of the present application, an electronic device for energy storage regulation control is also provided, which includes one or more processors and a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors can implement the energy storage regulation control method as described above.

Claims

1. An energy storage regulation and control method, comprising: Determine the first and second operating status data of the collected energy storage control equipment; Based on the first operating status data and the second operating status data, the maximum allowable charging power and the maximum allowable discharging power of the energy storage control device are determined. Based on the maximum allowable charging power, the maximum allowable discharging power, and the real-time active power of the energy storage control device, the energy storage control device is divided into three operating conditions. Determine the adjustable value of the active power of the energy storage control device under the three operating conditions; Receive commands to adjust energy storage capacity; An execution quantity is generated based on the energy storage capacity adjustment command; The measures of the energy storage control device are determined based on the executed amount and the adjustable amount; Based on the stated measures, an active power adjustment command is sent to the energy storage control device to adjust the active power of the energy storage control device.

2. The energy storage regulation and control method according to claim 1, wherein, The first running status data includes: Energy storage state of charge, real-time active power, charging power limit, discharging power limit and rated capacity; The second operating status data includes: Minimum continuous charge / discharge time, upper limit of energy storage state of charge, and lower limit of energy storage state of charge.

3. The energy storage regulation and control method according to claim 2, wherein, The step of determining the maximum allowable charging power and maximum allowable discharging power of the energy storage control device based on the first operating status data and the second operating status data includes: The maximum allowable charging power is calculated using the following formula. P_charge=PN*(SOC_U-SOC) / Tset; The maximum permissible discharge power is calculated using the following formula. P_discharge=PN*(SOC-SOC_L) / Tset; Wherein, P_charge is the absolute value of the maximum allowable charging power, P_discharge is the maximum allowable discharging power, Tset is the shortest continuous charging and discharging time, PN is the rated capacity, SOC is the real-time state of charge of the energy storage, SOC_U is the upper limit of the state of charge of the energy storage, and SOC_L is the lower limit of the state of charge of the energy storage. The calculated maximum allowable charging power is compared with the upper limit of the charging power to obtain the final maximum allowable charging power, wherein the absolute value of the maximum allowable charging power P_charge is not greater than the upper limit of the charging power Plim_charge; and The calculated maximum allowable discharge power is compared with the upper limit of discharge power to obtain the final maximum allowable discharge power, wherein the maximum allowable discharge power P_discharge is not greater than the upper limit of discharge power Plim_discharge.

4. The energy storage regulation and control method according to claim 3, wherein, The energy storage control device is divided into three operating conditions based on the maximum allowable charging power, the maximum allowable discharging power, and the real-time active power of the energy storage control device: When the energy storage control device serves as a controllable energy storage unit resource. When -P_charge≤P≤P_discharge, the energy storage control device is in the first operating condition, the energy storage control device is the energy storage controllable unit resource, and the active power adjustment range is from P to -P_charge; When P > P_discharge, the energy storage control device operates under the second operating condition, the energy storage control device is the energy storage controllable unit resource, and the active power adjustment range is from P_discharge to -P_charge. When P <- P_charge, the energy storage control device operates under the third operating condition, and the energy storage control device is an uncontrollable energy storage unit resource. Wherein, -P_charge is the maximum allowable charging power, P_discharge is the maximum allowable discharging power, and P is the real-time active power of the energy storage control device.

5. The energy storage regulation and control method according to claim 4, wherein, When the energy storage control device is used as a controllable energy storage unit resource, determining the adjustable amount of the active power of the energy storage control device under the three operating conditions includes: The adjustable capacity of the unit under the first operating condition and the second operating condition is calculated using the following formula: Pkt_jz = P + P_charge; Where Pkt_jz is the adjustable value of the unit; Under the first operating condition, the adjustable range of the active power is from 0 to Pkt_jz; Under the second operating condition, the formula for calculating the minimum adjustable value of the energy storage control device as the energy storage controllable unit resource is as follows: Pkt_jz_min = P - P_discharge; Wherein, Pkt_jz_min is the minimum adjustable value of the energy storage control device as the energy storage controllable unit resource, and under the second operating condition, the adjustable value of the active power is from Pkt_jz_min to Pkt_jz.

6. The energy storage regulation and control method according to claim 5, after determining the adjustable amount of the active power of the energy storage control device corresponding to the three operating conditions, the method further includes: Determine the power loss under the third operating condition; The execution quantity includes the power loss quantity; Under the third operating condition, the energy storage control device is the uncontrollable energy storage unit resource, the unit's adjustable value Pkt_jz is 0, the active power is adjusted to 0 or to the maximum allowable charging power - P_charge, and the energy storage control device generates the corresponding power loss, including: The power loss is calculated using the following formula: Ploss_jz1 = -P, Ploss_jz2 = -P_charge - P; Wherein, Ploss_jz1 is the power loss of the unit caused by adjusting the active power to 0, and Ploss_jz2 is the power loss of the unit caused by adjusting the active power to the maximum allowable charging power - P_charge.

7. The energy storage regulation and control method according to claim 3, wherein, The energy storage control device is divided into three operating conditions based on the maximum allowable charging power, the maximum allowable discharging power, and the real-time active power of the energy storage control device: When the energy storage control device serves as a controllable energy storage load resource... When -P_charge≤P≤P_discharge, the energy storage control device is in the first operating condition, the energy storage control device is the energy storage controllable load resource, and the active power adjustment range is from P to P_discharge; When P < -P_charge, the energy storage control device operates under the second operating condition, the energy storage control device is the controllable load resource of the energy storage, and the adjustment range of the active power is from P_discharge to -P_charge; When P>P_discharge, the energy storage control device operates under the third operating condition, and the energy storage control device is an uncontrollable load resource for energy storage. Wherein, -P_charge is the maximum allowable charging power, P_discharge is the maximum allowable discharging power, and P is the real-time active power of the energy storage control device.

8. The energy storage regulation and control method according to claim 7, wherein, When the energy storage control device serves as the controllable load resource for energy storage, determining the adjustable amount of the active power of the energy storage control device under the three operating conditions includes: The load adjustability for the first operating condition and the second operating condition is calculated using the following formula: Pkt_fh = P_discharge - P; Wherein, Pkt_fh is the load adjustable amount; Under the first operating condition, the adjustable range of the active power is from 0 to Pkt_fh; Under the second operating condition, the formula for calculating the minimum adjustable load of the energy storage control device as the controllable load resource of the energy storage is as follows: Pkt_fh_min = -P_charge - P; Wherein, Pkt_fh_min is the minimum adjustable load value of the energy storage control device as the controllable load resource of the energy storage, and under the second operating condition, the adjustable range of the active power is from Pkt_fh_min to Pkt_fh.

9. The energy storage regulation and control method according to claim 8, after determining the adjustable amount of the active power of the energy storage control device corresponding to the three operating conditions, the method further includes: Determine the power loss under the third operating condition; The execution quantity includes the power loss quantity; Under the third operating condition, the energy storage control device is the uncontrollable load resource of the energy storage, the load adjustability Pkt_fh is 0, the active power is adjusted to 0 or adjusted to the maximum allowable discharge power P_discharge, and the energy storage control device generates the corresponding power loss, including: The power loss is calculated using the following formula: Ploss_fh1 = P, Ploss_fh2 = P - P_discharge; Wherein, Ploss_fh1 is the load power loss caused by adjusting the active power to 0, and Ploss_fh2 is the load power loss caused by adjusting the active power to the maximum allowable discharge power P_discharge.

10. The energy storage regulation and control method according to claim 6, wherein, The energy storage capacity adjustment command includes an energy storage unit capacity adjustment command, and the generation of execution quantity based on the energy storage capacity adjustment command includes: When the energy storage control device serves as the energy storage controllable unit resource, it receives the instruction to adjust the capacity of the energy storage unit. The execution quantity is generated based on the energy storage unit capacity adjustment command, combined with the energy storage unit capacity adjustment and the unit power loss.

11. The energy storage regulation and control method according to claim 9, wherein, The energy storage capacity adjustment command includes an energy storage load capacity adjustment command, and the generation of the execution quantity based on the energy storage capacity adjustment command includes: When the energy storage control device serves as the controllable energy storage load resource, it receives the instruction to adjust the energy storage load capacity. The execution quantity is generated based on the energy storage load capacity adjustment command, combined with the energy storage load capacity adjustment and the load power loss.

12. The energy storage regulation and control method according to claim 10, wherein, The step of determining the measure quantity of the energy storage control device based on the executed quantity and the adjustable quantity includes: When the energy storage control device is used as the energy storage controllable unit resource, the active power of the third operating condition is adjusted to 0 or to the maximum allowable charging power. Based on the unit's adjustable quantity Pkt_jz under the first and second operating conditions and the preset measure quantity allocation method, the measure quantity of the energy storage control device is determined.

13. The energy storage regulation and control method according to claim 11, wherein, The step of determining the measure quantity of the energy storage control device based on the executed quantity and the adjustable quantity includes: When the energy storage control device is used as the controllable load resource of the energy storage, the active power of the third operating condition is adjusted to 0 or to the maximum allowable discharge power. Based on the load adjustability Pkt_fh of the first and second operating conditions and the preset measure allocation method, the measure quantity of the energy storage control device is determined.

14. An energy storage regulation and control system, the energy storage regulation and control system being used to execute the energy storage regulation and control method as described in any one of claims 1-13, the energy storage regulation and control system comprising an energy storage stability control device and an energy storage control device; The energy storage stability control device determines the first and second operating status data of the collected energy storage control device. Based on the first and second operating status data, it determines the maximum allowable charging power and the maximum allowable discharging power of the energy storage control device. Based on the maximum allowable charging power, the maximum allowable discharging power, and the real-time active power of the energy storage control device, it divides the energy storage control device into three operating conditions. It determines the adjustable amount of the active power of the energy storage control device under the three operating conditions, receives an energy storage capacity adjustment command, generates an execution quantity based on the energy storage capacity adjustment command, determines the measure quantity of the energy storage control device based on the execution quantity and the adjustable amount, and sends an active power adjustment command to the energy storage control device based on the measure quantity. The energy storage control device receives and executes the active power adjustment command to adjust the active power.

15. A non-volatile computer-readable storage medium storing a computer program that implements the energy storage regulation and control method as described in any one of claims 1-13.

16. An electronic device comprising: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the energy storage regulation and control method as described in any one of claims 1-13.

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