Energy storage system and method integrated with electric energy quality management

Abstract

The invention discloses an energy storage system and method integrated with electric energy quality management, and relates to the technical field of electric energy quality management, and the method comprises the steps: analyzing whether the energy storage equipment can complete the supply or not based on the comparison result of the effective energy storage capacity of the energy storage equipment and the power demand of a power supply interruption region; the method comprises the following steps: acquiring electric equipment data, analyzing the priority of the electric equipment, analyzing the required electric quantity of necessary equipment, analyzing whether the energy storage equipment can complete supply or not based on the comparison result of the effective energy storage capacity of the energy storage equipment and the required electric quantity of the necessary equipment, and analyzing the optimal operation current of the electric equipment based on the priority of the electric equipment and the operation data of the electric equipment. According to the method, whether the effective energy storage capacity of the energy storage equipment can meet the power demand of the power supply interruption area or the power demand of necessary equipment in the power supply interruption area is judged firstly, then reasonable power distribution is performed on the power equipment which cannot meet the power demand, key equipment is guaranteed preferentially, and the power quality management effect is improved to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of power quality management, and in particular to an energy storage system and method integrating power quality management. Background Art

[0002] An emergency energy storage system is an important energy device that can provide power support in emergencies to ensure the normal operation of critical facilities and important systems. The emergency energy storage system mainly consists of a battery pack, a battery management system, a charging device, an energy conversion device, a control system, etc. The emergency energy storage system is widely used in various important facilities and systems, such as hospitals, government agencies, industrial enterprises, data centers, communication facilities, petrochemical industries, etc. In these places, the emergency energy storage system can provide power support for critical facilities to ensure their normal operation in emergencies and reduce losses and impacts caused by power outages. In addition, the emergency energy storage system can also be used for the emergency power consumption needs of families and individuals, such as power failures, natural disasters, etc.

[0003] However, when the repair time in the power supply interruption area is too long, there is a situation of insufficient power supply in the energy storage device. Existing technologies for power distribution mostly calculate the required energy storage resource amount based on the load demand information of electrical equipment, lacking the technology of reasonable power distribution based on the energy storage capacity of the energy storage device, the required power consumption, the aging condition of electrical equipment, and the priority of electrical equipment. As a result, it is impossible to give priority to key equipment during long-term repair in the power supply interruption area, leading to poor power quality management effect.

[0004] To solve the above problems, the present invention provides an energy storage system and method integrating power quality management. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an energy storage system and method integrating power quality management. The present invention first determines whether the effective energy storage capacity of the energy storage device can meet the power consumption demand in the power supply interruption area or the power consumption demand of necessary equipment in the power supply interruption area, and then reasonably distributes the power for the electrical equipment that cannot meet the power supply demand, giving priority to key equipment to maximize the power quality management effect.

[0006] To achieve the above object, the present invention is implemented by the following technical solution: On the one hand, the present invention provides an energy storage method integrating power quality management, including: S1. Obtain the operation data of the energy storage device and analyze the effective energy storage capacity of the energy storage device; S2. Obtain the historical power consumption data, the operation data of electrical equipment, and the repair time in the power supply interruption area to predict the required power consumption in the power supply interruption area; S3. Analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the required power of the power supply interruption area. If it cannot complete the supply, perform the operation in step S4; S4. Obtain the data of the electrical equipment, analyze the priority of the electrical equipment, divide the necessary equipment based on the priority of the electrical equipment, and analyze the required power of the necessary equipment; S5. Analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the required power of the necessary equipment. If it cannot complete the supply, perform the operation in step S6; S6. Analyze the optimal operating current of the electrical equipment based on the priority of the electrical equipment and the operating data of the electrical equipment. If the optimal operating current is less than the minimum operating current, supply according to the minimum operating current.

[0007] Optionally, S1 includes the following specific steps: S11. Obtain the operating data of the energy storage device. The operating data of the energy storage device includes the usage duration of the energy storage device and the charge-discharge data of the energy storage device. The charge-discharge data of the energy storage device includes the depth of discharge, the actual number of charge-discharge cycles, and the operating current; S12. Analyze the device aging value based on the usage duration of the energy storage device, analyze the cycle attenuation value based on the depth of discharge and the actual number of charge-discharge cycles, and analyze the charge-discharge fluctuation value based on the operating current; S13. Analyze the effective energy storage capacity of the energy storage device based on the device aging value, the cycle attenuation value, and the charge-discharge fluctuation value.

[0008] Optionally, S2 includes the following specific steps: S21. Obtain the historical power consumption data, the operating data of the electrical equipment, and the repair time of the power supply interruption area. The operating data of the electrical equipment includes the rated current of the electrical equipment, the usage duration of the electrical equipment, and the temperature of the electrical equipment; S22. Analyze the average aging value of the electrical equipment in the power supply interruption area based on the usage duration of the electrical equipment and the temperature of the electrical equipment; S23. Predict the required power of the power supply interruption area based on the historical power consumption data of the power supply interruption area, the average aging value of the electrical equipment in the power supply interruption area, and the repair time.

[0009] Optionally, S3 includes the following specific steps: Compare the effective energy storage capacity of the energy storage device with the required power of the power supply interruption area. If the effective energy storage capacity of the energy storage device is greater than or equal to the required power of the power supply interruption area, it is determined that the energy storage device can complete the supply. If the effective energy storage capacity of the energy storage device is less than the required power of the power supply interruption area, it is determined that the energy storage device cannot complete the supply, and perform the operation in step S4.

[0010] Optionally, S4 includes the following specific steps: S41. Obtain electrical equipment data, where the electrical equipment data includes historical power consumption data of the electrical equipment, the current value of the electrical equipment, the shutdown loss of the electrical equipment, the cost of the electrical equipment, and standby equipment data. The shutdown loss of the electrical equipment is obtained by multiplying the output value per unit time of the electrical equipment by the repair time. The standby equipment data includes the number of standby equipment and the cost of standby equipment; S42. Analyze the power outage impact value of the electrical equipment based on the current value of the electrical equipment and the shutdown loss of the electrical equipment. Analyze the substitution difficulty value of the electrical equipment based on the cost of the electrical equipment, the number of standby equipment, and the cost of standby equipment. Analyze the priority level value of the electrical equipment based on the power outage impact value and the substitution difficulty value of the electrical equipment; S43. Compare the priority level value of the electrical equipment with a preset priority level threshold of the electrical equipment, and classify the electrical equipment corresponding to the priority level value greater than or equal to the priority level threshold of the electrical equipment as essential equipment; S44. Analyze the required power consumption of the essential equipment based on the historical power consumption data of the essential equipment, the aging value of the essential equipment, and the repair time.

[0011] Optionally, the S5 includes the following specific steps: Compare the effective energy storage capacity of the energy storage device with the required power consumption of the essential equipment. If the effective energy storage capacity of the energy storage device is greater than or equal to the required power consumption of the essential equipment, it is determined that the energy storage device can complete the supply. If the effective energy storage capacity of the energy storage device is less than the required power consumption of the essential equipment, it is determined that the energy storage device cannot complete the supply, and the operation of step S6 is performed.

[0012] Optionally, the S6 includes the following specific steps: S61. Analyze the optimal operating current of the electrical equipment based on the priority level value of the electrical equipment and the rated current of the electrical equipment; S62. Compare the optimal operating current of the electrical equipment with the minimum operating current of the electrical equipment. If the optimal operating current of the electrical equipment is greater than or equal to the minimum operating current of the electrical equipment, supply is performed according to the optimal operating current of the electrical equipment. If the optimal operating current of the electrical equipment is less than the minimum operating current of the electrical equipment, supply is performed according to the minimum operating current of the electrical equipment.

[0013] In a second aspect, the present invention provides an energy storage system integrating power quality management, including: an effective energy storage capacity analysis module for obtaining the operating data of the energy storage device and analyzing the effective energy storage capacity of the energy storage device; A power supply interruption area required power prediction module for obtaining the historical power consumption data of the power supply interruption area, the operating data of the electrical equipment, and the repair time to predict the required power consumption of the power supply interruption area; A power supply interruption area supply judgment module, configured to analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the power demand of the power supply interruption area; A necessary equipment power demand analysis module, configured to obtain power consumption device data to analyze the priority of power consumption devices, divide necessary equipment based on the priority of power consumption devices, and analyze the power demand of necessary equipment; A necessary equipment supply judgment module, configured to analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the power demand of necessary equipment; A current distribution module, configured to analyze the optimal operating current of power consumption devices based on the priority of power consumption devices and the operating data of power consumption devices. If the optimal operating current is less than the minimum operating current, the supply is performed according to the minimum operating current.

[0014] Thirdly, the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of a energy storage method integrating power quality management described in the first aspect are implemented.

[0015] Fourthly, the present invention provides an electronic device, including: A memory, configured to store computer instructions; A processor, configured to execute the computer instructions to implement the steps of a energy storage method integrating power quality management described in the first aspect.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: Obtain the operation data of the energy storage device to analyze the effective energy storage capacity of the energy storage device, obtain the historical power consumption data, the operation data of power consumption devices and the repair time of the power supply interruption area to predict the power demand of the power supply interruption area, analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the power demand of the power supply interruption area, obtain the power consumption device data to analyze the priority of power consumption devices, divide necessary equipment based on the priority of power consumption devices, analyze the power demand of necessary equipment, analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the power demand of necessary equipment, analyze the optimal operating current of power consumption devices based on the priority of power consumption devices and the operation data of power consumption devices. If the optimal operating current is less than the minimum operating current, the supply is performed according to the minimum operating current. The present invention first judges whether the effective energy storage capacity of the energy storage device can meet the power demand of the power supply interruption area or the power demand of necessary equipment in the power supply interruption area, and then reasonably distributes the power of the power consumption devices that cannot meet the power supply demand, giving priority to ensuring key equipment, and maximizing the improvement of the power quality management effect. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic flow diagram of an energy storage method integrating power quality management according to the present invention; Figure 2 Schematic flow diagram of step S1 of an energy storage method integrating power quality management according to the present invention; Figure 3 Schematic flow diagram of step S2 of an energy storage method integrating power quality management according to the present invention; Figure 4 Schematic flow diagram of step S4 of an energy storage method integrating power quality management according to the present invention; Figure 5 Schematic diagram of the overall framework of an energy storage system integrating power quality management according to the present invention. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0020] The term "and / or" only describes the associated relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " generally represents an "or" relationship between the associated objects before and after.

[0021] Embodiment 1 Please refer to Figure 1 , an energy storage method integrating power quality management, which includes the following specific steps: S1. Obtain the operation data of the energy storage device and analyze the effective energy storage capacity of the energy storage device; In this embodiment, please refer to Figure 2 , S1 includes the following specific steps: S11. Obtain the operation data of the energy storage device. The operation data of the energy storage device includes the usage duration of the energy storage device and the charge and discharge data of the energy storage device. The charge and discharge data of the energy storage device includes the depth of discharge, the actual number of charge and discharge cycles, and the operating current; S12. Analyze the equipment aging value based on the usage duration of the energy storage device, analyze the cycle attenuation value based on the depth of discharge and the actual number of charge and discharge cycles, and analyze the charge and discharge fluctuation value based on the operating current; S13. Analyze the effective energy storage capacity of the energy storage device based on the equipment aging value, the cycle attenuation value, and the charge and discharge fluctuation value.

[0022] In specific implementation, the calculation formula for the effective energy storage capacity of the energy storage device can be expressed as: ; Wherein, is the effective energy storage capacity, is the theoretical energy storage capacity, is the equipment aging value, is the calendar decay coefficient, that is, the aging rate of the energy storage device, is the usage duration of the energy storage device, is the calendar life of the energy storage device, is the cycle attenuation value, is the charge and discharge decay coefficient, is the actual number of charge and discharge cycles, is the average value of the depth of discharge, is the depth of discharge sensitivity coefficient, is the standard depth of discharge, is the number of cycles under the standard depth of discharge, is the charge and discharge fluctuation value, is the number of acquisition times of the operating current, is the operating current acquired at the i-th time, is the average value of the operating current, is the rated charge and discharge current, is the exponential function with e as the base.

[0023] In specific implementation, the acquisition method of the calendar decay coefficient can be: Monitor several energy storage devices suitable for basic usage requirements and having the same theoretical energy storage capacity. When the effective energy storage capacity of the energy storage device cannot meet the basic usage requirements, obtain the usage duration of the energy storage device, and obtain the calendar decay coefficient of the energy storage device by dividing the difference between the theoretical energy storage capacity and the effective energy storage capacity by the usage duration. Obtain the average value of the calendar decay coefficients of several energy storage devices as the calendar decay coefficient of this embodiment; The acquisition method of the charge and discharge decay coefficient can be: Conduct charge and discharge cycle tests on the energy storage device that meets the theoretical energy storage capacity at the standard depth of discharge, draw the energy storage capacity decay curve according to the cycle data, and obtain the charge and discharge decay coefficient; The depth of discharge sensitivity coefficient The acquisition method may be: testing energy storage devices that meet the theoretical energy storage capacity under the same number of charge-discharge cycles with different discharge depths, and obtaining the discharge depth sensitivity coefficient according to the influence of different discharge depths on the attenuation of the energy storage capacity.

[0024] S2. Obtain the historical electricity consumption data, operating data of electrical equipment, and repair time of the power supply interruption area to predict the required electricity quantity of the power supply interruption area; In this embodiment, please refer to Figure 3 , S2 includes the following specific steps: S21. Obtain the historical electricity consumption data, operating data of electrical equipment, and repair time of the power supply interruption area. The operating data of electrical equipment includes the rated current of the electrical equipment, the usage duration of the electrical equipment, and the temperature of the electrical equipment; S22. Analyze the average aging value of the electrical equipment in the power supply interruption area based on the usage duration and temperature of the electrical equipment; In specific implementation, the calculation formula of the average aging value of electrical equipment can be expressed as: ; Among them, is the average aging value of the electrical equipment, is the number of electrical equipment, is the aging value of the vth electrical equipment, is the usage duration of the vth electrical equipment, is the calendar life of the vth electrical equipment, is the temperature of the vth electrical equipment, is the standard temperature of the vth electrical equipment, and the standard temperature can be obtained by taking the average value of the temperature when the electrical equipment operates normally.

[0025] S23. Predict the required electricity quantity of the power supply interruption area based on the historical electricity consumption data of the power supply interruption area, the average aging value of the electrical equipment in the power supply interruption area, and the repair time.

[0026] In specific implementation, the prediction formula of the required electricity quantity at time q in the power supply interruption area can be expressed as: ; Among them, is the predicted required electricity quantity at time q in the power supply interruption area, is the window size, that is, the number of historical electricity consumption data selected for the power supply interruption area, is the pth historical electricity consumption value of the power supply interruption area; The prediction formula of the required electricity quantity of the power supply interruption area can be expressed as: ; Among them, is the required electricity quantity of the power supply interruption area, is the repair time, The predicted demand electricity quantity for the power supply interruption area during the repair time.

[0027] S3. Analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the demand electricity quantity of the power supply interruption area. If it cannot complete the supply, perform the operation in step S4; In this embodiment, S3 includes the following specific steps: Compare the effective energy storage capacity of the energy storage device with the demand electricity quantity of the power supply interruption area. If the effective energy storage capacity of the energy storage device is greater than or equal to the demand electricity quantity of the power supply interruption area, it is determined that the energy storage device can complete the supply, and perform the supply operation on the power supply interruption area. If the effective energy storage capacity of the energy storage device is less than the demand electricity quantity of the power supply interruption area, it is determined that the energy storage device cannot complete the supply, and perform the operation in step S4.

[0028] S4. Obtain the data of the electrical equipment, analyze the priority of the electrical equipment, divide the necessary equipment based on the priority of the electrical equipment, and analyze the demand electricity quantity of the necessary equipment; In this embodiment, please refer to Figure 4 , S4 includes the following specific steps: S41. Obtain the data of the electrical equipment. The data of the electrical equipment includes the historical electricity consumption data of the electrical equipment, the current value of the electrical equipment, the shutdown loss of the electrical equipment, the cost of the electrical equipment, and the data of the standby equipment. The shutdown loss of the electrical equipment is obtained by multiplying the output value per unit time of the electrical equipment by the repair time. The data of the standby equipment includes the quantity of the standby equipment and the cost of the standby equipment; S42. Analyze the power outage impact value of the electrical equipment based on the current value of the electrical equipment and the shutdown loss of the electrical equipment, analyze the substitution difficulty value of the electrical equipment based on the cost of the electrical equipment, the quantity of the standby equipment, and the cost of the standby equipment, and analyze the priority level value of the electrical equipment based on the power outage impact value and the substitution difficulty value of the electrical equipment; In specific implementation, the calculation formula of the priority level value of the electrical equipment can be expressed as: ; Among them, is the priority level value of the electrical equipment, is the current value of the m-th electrical equipment, is the total current of the power supply interruption area, is the shutdown loss of the m-th electrical equipment, is the total loss during the repair period of the power supply interruption area, obtained based on the sum of the output value per unit time of each electrical equipment multiplied by the repair time, is the power outage impact value of the electrical equipment, is the logarithmic function with e as the base, is the quantity of the standby equipment, is the cost of the standby equipment, is the cost of the m-th electrical device, is the difficulty value of replacing the electrical device.

[0029] S43. Compare the priority value of the electrical device with a preset priority threshold of the electrical device, and classify the electrical devices corresponding to the priority values of the electrical devices greater than or equal to the priority threshold of the electrical device as necessary devices; In specific implementation, the method for obtaining the priority threshold of the electrical device can be: obtain the electrical device data of the set area, calculate the priority value of each electrical device, invite electrical energy experts to classify the necessary devices according to the actual importance of the electrical devices, and screen out the corresponding minimum priority value of the electrical device as the priority threshold of the electrical device according to the necessary devices classified by the experts.

[0030] S44. Analyze the required power of the necessary devices based on the historical power consumption data, aging value, and repair time of the necessary devices.

[0031] In specific implementation, the calculation formula for the required power of the necessary devices can be expressed as: ; where, is the required power of the necessary device, is the number of necessary devices, is the aging value of the a-th necessary device, which can be obtained from the above formula obtained, is the r-th historical power consumption value of the necessary device, is the q-th moment during the repair period, is the number of historical power consumption data of the necessary device, is the predicted required power of the necessary device during the repair time.

[0032] S5. Analyze whether the energy storage device can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage device and the required power of the necessary devices. If it cannot complete the supply, perform the operation of step S6; In this embodiment, S5 includes the following specific steps: Compare the effective energy storage capacity of the energy storage device with the required power of the necessary devices. If the effective energy storage capacity of the energy storage device is greater than or equal to the required power of the necessary devices, it is determined that the energy storage device can complete the supply, and perform the supply operation on the necessary devices. If the effective energy storage capacity of the energy storage device is less than the required power of the necessary devices, it is determined that the energy storage device cannot complete the supply, and perform the operation of step S6.

[0033] S6. Analyze the optimal operating current of the electrical device based on the priority of the electrical device and the operating data of the electrical device. If the optimal operating current is less than the minimum operating current, supply according to the minimum operating current.

[0034] In this embodiment, S6 includes the following specific steps: S61. Analyze the optimal operating current of the electrical equipment based on the priority value of the electrical equipment and the rated current of the electrical equipment; In specific implementation, the calculation formula for the optimal operating current of the electrical equipment can be expressed as: ; Wherein, is the optimal operating current of the electrical equipment, is the rated current of the electrical equipment.

[0035] S62. Compare the optimal operating current of the electrical equipment with the minimum operating current of the electrical equipment. If the optimal operating current of the electrical equipment is greater than or equal to the minimum operating current of the electrical equipment, supply according to the optimal operating current of the electrical equipment. If the optimal operating current of the electrical equipment is less than the minimum operating current of the electrical equipment, supply according to the minimum operating current of the electrical equipment.

[0036] Embodiment 2 Please refer to Figure 5 , an energy storage system integrating power quality management, including: an effective energy storage capacity analysis module for obtaining the operation data of the energy storage device and analyzing the effective energy storage capacity of the energy storage device; A power supply interruption area demand power prediction module for obtaining the historical power consumption data, electrical equipment operation data and repair time of the power supply interruption area to predict the demand power of the power supply interruption area; A power supply interruption area supply judgment module for analyzing whether the energy storage device can complete the supply based on the comparison result of the effective energy storage capacity of the energy storage device and the demand power of the power supply interruption area; A necessary equipment demand power analysis module for obtaining the electrical equipment data to analyze the priority of the electrical equipment, dividing the necessary equipment based on the priority of the electrical equipment, and analyzing the demand power of the necessary equipment; A necessary equipment supply judgment module for analyzing whether the energy storage device can complete the supply based on the comparison result of the effective energy storage capacity of the energy storage device and the demand power of the necessary equipment; A current distribution module for analyzing the optimal operating current of the electrical equipment based on the priority of the electrical equipment and the operation data of the electrical equipment. If the optimal operating current is less than the minimum operating current, supply according to the minimum operating current.

[0037] Embodiment 3 This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned energy storage method integrating power quality management are implemented.

[0038] Embodiment 4 This embodiment provides an electronic device, including: a memory for storing computer instructions, and a processor for executing the above computer instructions to implement the steps of an energy storage method integrating power quality management.

[0039] This electronic device may have significant differences due to different configurations or performances, and can include one or more processors (Central Processing Units, CPUs) and one or more memories. Among them, at least one computer program is stored in the memory, and this computer program is loaded and executed by the processor to implement an energy storage method integrating power quality management provided by the above method embodiment. This electronic device can also include other components for implementing device functions. For example, this electronic device can also have components such as wired or wireless network interfaces and input / output interfaces for data input and output. Details are not elaborated in this embodiment.

[0040] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0041] The present invention is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0042] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implement the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0043] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one process or Figure 1 one or more processes and / or blocks Figure 1 steps of the functions specified in one block or more blocks.

[0044] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit of the present invention and the scope protected by the claims. All of these fall within the protection scope of the present invention.

Claims

1. An energy storage method integrating power quality management, characterized in that: The specific steps include: S1. Obtaining the operation data of the energy storage device and analyzing the effective energy storage capacity of the energy storage device; S2. Obtain historical power consumption data, power equipment operation data and repair time of the power supply interruption area to predict the power demand in the power supply interruption area; S3, based on the comparison result of the effective energy storage capacity of the energy storage device and the power demand in the power outage area, analyzing whether the energy storage device can complete the supply, if it cannot complete the supply, proceeding to step S4; S4. Obtain data on power-consuming equipment and analyze the priorities of the power-consuming equipment, divide the necessary equipment into the necessary equipment based on the priorities of the power-consuming equipment, and analyze the power demand of the necessary equipment; S5, analyzing whether the energy storage device can complete the supply based on the comparison result of the effective energy storage capacity of the energy storage device and the required power of the necessary equipment. If the supply cannot be completed, proceed to step S6; S6. Analyze the optimal operating current of the electrical equipment based on the priority of the electrical equipment and the operating data of the electrical equipment. If the optimal operating current is less than the minimum operating current, supply it according to the minimum operating current.

2. The energy storage method integrating power quality management according to claim 1, characterized in that: The S1 comprises the following specific steps: S11, obtaining energy storage device operation data, wherein the energy storage device operation data includes the energy storage device usage time and energy storage device charge and discharge data, wherein the energy storage device charge and discharge data includes discharge depth, actual charge and discharge times and operating current; S12, analyzing the aging value of the equipment based on the usage time of the energy storage equipment, analyzing the cycle attenuation value based on the discharge depth and the actual charge and discharge times, and analyzing the charge and discharge fluctuation value based on the operating current; S13. Analyze the effective energy storage capacity of the energy storage device based on the equipment aging value, cycle attenuation value and charge and discharge fluctuation value.

3. The energy storage method integrating power quality management according to claim 2, characterized in that: The S2 comprises the following specific steps: S21, obtaining historical power consumption data, power equipment operation data and repair time in the power supply interruption area, wherein the power equipment operation data includes the rated current of the power equipment, the use time of the power equipment and the temperature of the power equipment; S22. Analyze the average aging value of electrical equipment in the power outage area based on the usage time and temperature of the electrical equipment; S23. Predicting the power demand in the power outage area based on the historical power consumption data in the power outage area, the average aging value of the power equipment in the power outage area, and the repair time.

4. The energy storage method integrating power quality management as claimed in claim 3, characterized in that: The S3 includes the following specific steps: The effective energy storage capacity of the energy storage device is compared with the power demand in the power outage area. If the effective energy storage capacity of the energy storage device is greater than or equal to the power demand in the power outage area, it is determined that the energy storage device can complete the supply. If the effective energy storage capacity of the energy storage device is less than the power demand in the power outage area, it is determined that the energy storage device cannot complete the supply, and step S4 is performed.

5. The energy storage method integrating power quality management as claimed in claim 4, characterized in that: The S4 comprises the following specific steps: S41, acquiring data of electric equipment, wherein the data of electric equipment includes historical electric equipment data, electric equipment current value, electric equipment downtime loss, electric equipment cost and standby equipment data, wherein the electric equipment downtime loss is obtained based on the output value per unit time of the electric equipment multiplied by the repair time, and the standby equipment data includes the number of standby equipment and the standby equipment cost; S42, analyzing the power outage impact value of the power equipment based on the current value of the power equipment and the power equipment downtime loss, analyzing the power equipment replacement difficulty value based on the power equipment cost, the number of spare equipment and the spare equipment cost, and analyzing the power equipment priority value based on the power outage impact value of the power equipment and the power equipment replacement difficulty value; S43, comparing the priority value of the electric device with a preset priority threshold of the electric device, and classifying the electric devices corresponding to the priority values ​​of the electric devices that are greater than or equal to the priority threshold of the electric device as necessary devices; S44. Analyze the power demand of the necessary equipment based on the historical power consumption data of the necessary equipment, the aging value of the necessary equipment and the repair time.

6. The energy storage method integrating power quality management according to claim 5, characterized in that: The S5 comprises the following specific steps: Compare the effective energy storage capacity of the energy storage device with the power demand of the necessary equipment. If the effective energy storage capacity of the energy storage device is greater than or equal to the power demand of the necessary equipment, it is determined that the energy storage device can complete the supply. If the effective energy storage capacity of the energy storage device is less than the power demand of the necessary equipment, it is determined that the energy storage device cannot complete the supply, and step S6 is performed.

7. The energy storage method integrating power quality management according to claim 6, characterized in that: The S6 comprises the following specific steps: S61, analyzing the optimal operating current of the electrical equipment based on the priority value of the electrical equipment and the rated current of the electrical equipment; S62. Compare the optimal operating current of the electrical equipment with the minimum working current of the electrical equipment. If the optimal operating current of the electrical equipment is greater than or equal to the minimum working current of the electrical equipment, supply the electrical equipment with the optimal operating current; if the optimal operating current of the electrical equipment is less than the minimum working current of the electrical equipment, supply the electrical equipment with the minimum working current.

8. An energy storage system integrating power quality management, used to implement the energy storage method integrating power quality management as claimed in any one of claims 1 to 7, characterized in that: include: An effective energy storage capacity analysis module is used to obtain the operation data of energy storage equipment and analyze the effective energy storage capacity of the energy storage equipment; The power demand prediction module for the power supply interruption area is used to obtain the historical power consumption data, power equipment operation data and repair time of the power supply interruption area to predict the power demand in the power supply interruption area; A power supply judgment module for power supply interruption areas, used to analyze whether the energy storage equipment can complete the supply based on the comparison result between the effective energy storage capacity of the energy storage equipment and the power demand in the power supply interruption area; The necessary equipment power demand analysis module is used to obtain power-consuming equipment data, analyze power-consuming equipment priorities, classify necessary equipment based on power-consuming equipment priorities, and analyze the power demand of necessary equipment; A necessary equipment supply judgment module is used to analyze whether the energy storage equipment can complete the supply based on the comparison result of the effective energy storage capacity of the energy storage equipment and the required power of the necessary equipment; The current distribution module is used to analyze the optimal operating current of the electrical equipment based on the priority of the electrical equipment and the operating data of the electrical equipment. If the optimal operating current is less than the minimum operating current, the minimum operating current is supplied.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of an energy storage method integrating power quality management as described in any one of claims 1 to 7 are implemented.

10. An electronic device, characterized in that: include: Memory, for storing computer instructions; A processor is used to execute the computer instructions to implement the steps of an energy storage method integrating power quality management as described in any one of claims 1-7.

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