Active safety monitoring method for energy storage power station

By analyzing the power storage and output power history information of power storage equipment, creating a priority queue and calculating safety evaluation factors, the problem of insufficient safety monitoring of energy storage power stations is solved, intelligent configuration and safety evaluation of power storage equipment are realized, and energy storage is improved Safety and adaptability of power plants.

CN119275825APending Publication Date: 2025-01-07SPIC HUBEILVDONG NEW ENERGY CO LTD +1

Patent Information

Application Number
CN202411384780.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-01-07

AI Technical Summary

Technical Problem

The safety monitoring measures of existing energy storage power stations are insufficient and cannot be warned in time. Traditional fire protection facilities are passively perceived and cannot be monitored online. Moreover, there are poor sensitivity of temperature, humidity, image and smoke monitoring technologies, so early warning cannot be conducted in the early stages of the accident.

Method used

By monitoring the power storage and output power history information of power storage equipment, analyzing activity, creating power storage priority queues and output power priority queues, calculating safety evaluation factors, setting safety judgment thresholds, determining equipment operation safety, and based on the evaluation factors Correct activity and kick out unsafe equipment, thereby achieving active safety monitoring of energy storage power plants.

Benefits of technology

It realizes intelligent configuration and safety assessment of power storage equipment when storing and outputting power, improves the safety and adaptability of energy storage power stations, promptly detects fault hazards, and realizes intelligent control.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention relates to the technical field of energy storage power stations, in particular to an active safety monitoring method for an energy storage power station, which comprises the following steps: monitoring power storage and output historical information of power storage equipment of the energy storage power station, and analyzing the activeness of the power storage equipment based on the power storage and output historical information of the power storage equipment; obtaining the activeness of power storage equipment of the energy storage power station, creating a power storage priority queue and an output power priority queue according to the activeness of the power storage equipment of the energy storage power station, and executing daily power storage and transmission of the energy storage power station based on the power storage priority queue and the output power priority queue; according to the invention, the power storage and output historical information of the power storage equipment in the energy storage power station is collected and analyzed, the activeness of the power storage equipment is analyzed, and when the power storage equipment is used for power storage and output, the queue is generated according to the activeness of the power storage equipment, so that the intelligent configuration of the power storage equipment for power storage and output is realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power stations, and in particular to an active safety monitoring method for energy storage power stations. Background Art

[0002] An energy storage power station is a facility that can store and release electrical energy. It stores excess electrical energy in the power grid through a variety of energy storage methods such as batteries, pumped storage, compressed air, etc., and then releases the stored electrical energy during peak power consumption or power grid failures, thereby balancing the grid load, ensuring power supply stability, and improving energy utilization efficiency.

[0003] The invention patent with application number 202111179963.9 discloses an active safety monitoring and early warning method for a lithium-ion battery energy storage power station, which is characterized in that it includes the following steps: the first step: simulating the normal charging and discharging process and the fault hidden danger occurrence process of the energy storage power station battery, obtaining the operating environment data and the data collected by the BMS as characteristic parameters, and establishing an original sample database; the second step: establishing a local decision model for each characteristic parameter based on the BP neural network of the LM algorithm, normalizing the dimensions of each characteristic parameter in the original sample database, obtaining a sample database of the local decision model of each parameter, and training the local decision model of each parameter based on this; the third step: integrating the local decision models of each parameter, establishing a comprehensive early warning model for energy storage battery hidden dangers based on the LSTM algorithm, and training the model using the sample database; the fourth step: first making local decisions on the collected actual field data through each decision model, and when the local decision results meet the set abnormal standards, sending the actual field data into the comprehensive early warning model for comprehensive early warning decision-making, and issuing an early warning when the comprehensive decision results meet the set abnormal standards.

[0004] The application aims to solve the following problems: "BMS only monitors the battery itself. When there is a risk of overheating outside the battery, the BMS cannot respond in time. It only takes action when the situation affects the battery accident. At this time, the best time to deal with it has been missed, which may cause greater losses; traditional fire-fighting facilities are passive sensing and post-processing, and cannot be monitored online; temperature and humidity, image and smoke monitoring technologies have defects such as poor sensitivity and easy false alarms. They are passive sensing and cannot provide early warnings in the early stages of accidents; the safety monitoring measures of existing energy storage power stations are still insufficient, and cannot comprehensively analyze the safe operation status of energy storage power stations."

[0005] However, the energy storage equipment currently used in energy storage power stations is often used for power storage in a centralized manner, without intelligent management effects, causing the energy storage equipment to store electricity in a disorderly manner or according to a fixed storage logic, and unable to perform storage operations in a regulated and adaptive manner;

[0006] To this end, we proposed an active safety monitoring method for energy storage power stations. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an active safety monitoring method for an energy storage power station, which solves the technical problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] Active safety monitoring methods for energy storage power stations include:

[0010] Monitor the historical information of power storage and output of power storage equipment in energy storage power stations, and analyze the activity of power storage equipment based on the historical information of power storage and output of power storage equipment; obtain the activity of power storage equipment in energy storage power stations, create power storage priority queues and power output priority queues according to the activity of power storage equipment in energy storage power stations, and perform daily power storage and transmission of energy storage power stations based on the power storage priority queues and power output priority queues; traverse the historical information of power storage and output of power storage equipment in energy storage power stations, calculate the safety assessment factor of power storage equipment based on the historical information of power storage and output of power storage equipment, and record the calculated safety assessment factor of power storage equipment; set the safety judgment threshold of power storage equipment, apply the latest recorded safety assessment factor of power storage equipment to compare with the set safety judgment threshold of power storage equipment, and judge whether the operation of power storage equipment is safe; if the judgment result is safe, correct the activity of power storage equipment in the next analysis based on the safety assessment factor of power storage equipment; if the judgment result is unsafe, kick the power storage equipment with the judgment result unsafe out of the power storage priority queue and the power output priority queue; kick out the feedback of power storage equipment in the two priority queues.

[0011] Furthermore, the energy storage equipment of the energy storage station is not unique, and the energy storage and output history information of the energy storage equipment includes: energy storage time, energy storage amount, energy storage voltage, energy output time, energy output amount, output voltage, and real-time capacity. The energy storage and output history information of the energy storage equipment of the energy storage station is the energy storage and output history information of the energy storage station for no less than seven days in the past.

[0012] Among them, after analyzing the activity of the power storage devices based on the historical information of power storage and output of the power storage devices, each group of power storage devices is compared with the activity analysis results, and each power storage device is arranged in descending order according to the activity of the power storage devices to further obtain the activity queue of the power storage devices.

[0013] Furthermore, the activity analysis logic of the power storage device is expressed as:

[0014]

[0015] Where: f is the activity of the power storage device; t out The accumulated time of power storage device outputting electricity; tin The accumulated storage time of the power storage device; g in Accumulated electricity for power storage equipment; g out is the accumulated power output of the power storage device; n is the total amount of power storage and output history information of the power storage device; q i The real-time capacity of the storage device in the storage or output history information of the i-th group of storage devices; q max ,q min is the maximum real-time capacity and the minimum real-time capacity of the power storage device in the power storage and output history information of the power storage device; γ is the normalization factor;

[0016] in, Table pair The larger the activity f of the power storage device, the more active the power storage device is. Based on the above formula, the activity of each power storage device is calculated.

[0017] Furthermore, the activity queue of the power storage device is the power storage priority queue of the power storage device of the energy storage station, and the reverse queue of the activity queue of the power storage device is the power output priority queue of the power storage device of the energy storage station;

[0018] Among them, when the energy storage equipment performs the daily power storage and power transmission operations of the energy storage power station based on the energy storage priority queue and the output power priority queue, the real-time information of energy storage and power output of the energy storage equipment of the energy storage power station is monitored again as historical information to continuously obtain the activity queue of the energy storage equipment, and the energy storage equipment storage priority queue and the energy storage equipment output priority queue of the energy storage power station are updated in real time based on the continuously obtained activity queue of the energy storage equipment, and the real-time power storage and power transmission tasks are performed based on the energy storage priority queue and the energy storage equipment output priority queue of the energy storage power station.

[0019] Furthermore, when calculating the safety assessment factor of the power storage device according to the power storage point and output history information of the power storage device, the operation of traversing the power storage and output history information of the power storage device, and the traversal of the power storage and output history information of all power storage devices, the operation of calculating the safety assessment factor of the power storage device according to the power storage point and output history information of the power storage device, based on the iteration of the power storage priority queue and the output priority queue, synchronously refresh the calculation;

[0020] The operation of recording the calculated safety assessment factor of the electric storage device, i.e., recording the safety assessment factor of the electric storage device calculated for the first time and each time it is refreshed, the safety assessment factor of the electric storage device is recorded using a line graph, and in the line graph representing the safety assessment factor of the electric storage device, the horizontal axis represents the number of calculations of the safety assessment factor of the electric storage device, and the vertical axis represents the value of the safety assessment factor of the electric storage device obtained from each calculation.

[0021] Furthermore, the calculation formula of the safety assessment factor of the power storage device is:

[0022]

[0023] Where: δ is the safety assessment factor of the power storage equipment; The average daily amount of electricity stored in the power storage equipment; is the average daily output of the power storage device; u is the total amount of power storage history information of the power storage device; U a is the voltage stored in the power storage history information of the power storage device in group a; U(u) max 、U(u) min is the maximum and minimum storage voltages of the total amount of historical information stored in the storage device; v is the total amount of historical information output by the storage device; U b The output voltage of the b-th group of storage devices in the output power history information; U(v) max 、U(v) min The maximum output voltage and the minimum output voltage in the total amount of output history information of the power storage device;

[0024] The larger the safety assessment factor δ of the power storage device is, the safer the operating state of the power storage device is, and vice versa.

[0025] Furthermore, each power storage device in the energy storage power station obtains its corresponding safety assessment factor based on the calculation formula of the power storage device safety assessment factor;

[0026] The safety determination threshold of the power storage device is customized by the user, and the setting format of the safety determination threshold of the power storage device is (x, +∞). If the latest recorded safety assessment factor of the power storage device is within the safety determination threshold, the determination result is yes; if the latest recorded safety assessment factor of the power storage device is not within the safety determination threshold, the determination result is no.

[0027] Furthermore, the logic for correcting the activity of the next analysis of the power storage device based on the power storage device safety assessment factor is expressed as:

[0028] f′=δ×f;

[0029] Where: f′ is the corrected activity; δ is the safety assessment factor of the energy storage device; f is the activity of the energy storage device.

[0030] Furthermore, the power storage equipment judged to be safe in operation is continuously monitored based on a line graph representing the safety assessment factor of the power storage equipment. When the latest three consecutive groups of safety assessment factors are monitored to be continuously decreasing, the corresponding power storage equipment is judged to be unsafe.

[0031] Furthermore, each power storage device in the energy storage power station is provided with a serial number or character mark;

[0032] The feedback operation of the power storage devices kicked out of the two priority queues is: obtain the power storage devices kicked out of the two priority queues, use the serial number or character mark corresponding to the power storage device as feedback information, and feedback to the mobile computer device held by the user end. The user end reads the feedback information on the mobile computer to determine the power storage devices kicked out of the two priority queues.

[0033] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0034] The active safety monitoring method for energy storage power stations of the present invention, during the execution of the method, collects and analyzes the storage and output history information of the energy storage equipment in the energy storage power station, analyzes the activity of the energy storage equipment, generates a queue according to the activity of the energy storage equipment when the energy storage equipment is used for storing and outputting electricity, realizes the intelligent configuration of the energy storage equipment used for storing and outputting electricity, further determines the safety assessment factor of the energy storage equipment based on the storage and output history information of the energy storage equipment, optimizes the generated energy storage equipment queue for storing and outputting electricity, and enables the energy storage equipment to be more intelligent and adaptive when used for storing and outputting electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 It is a flow chart of the active safety monitoring method of energy storage power station. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention will be further described below in conjunction with the embodiments.

[0039] Embodiment 1:

[0040] The active safety monitoring method for energy storage power station of this embodiment is as follows: Figure 1 As shown, including:

[0041] Monitor the historical information of power storage and output of power storage equipment in energy storage power stations, and analyze the activity of power storage equipment based on the historical information of power storage and output of power storage equipment;

[0042] The activity analysis logic of power storage equipment is expressed as:

[0043]

[0044] Where: f is the activity of the power storage device; t out The accumulated time of power storage device outputting electricity; t in The accumulated storage time of the power storage device; g in Accumulated electricity for power storage equipment; g out is the accumulated power output of the power storage device; n is the total amount of power storage and output history information of the power storage device; q i The real-time capacity of the storage device in the storage or output history information of the i-th group of storage devices; q max ,q min is the maximum real-time capacity and the minimum real-time capacity of the power storage device in the power storage and output history information of the power storage device; γ is the normalization factor;

[0045] in, Table pair The larger the activity f of the power storage device, the more active the power storage device is. Based on the above formula, the activity of each power storage device is calculated;

[0046] Obtain the activity of the energy storage equipment in the energy storage station, create a power storage priority queue and an output power priority queue according to the activity of the energy storage equipment in the energy storage station, and perform daily power storage and transmission of the energy storage station based on the power storage priority queue and the output power priority queue;

[0047] Traversing the historical information of power storage and power output of the power storage equipment of the energy storage power station, calculating the safety assessment factor of the power storage equipment according to the historical information of power storage and power output of the power storage equipment, and recording the calculated safety assessment factor of the power storage equipment;

[0048] When calculating the safety assessment factor of the power storage device according to the power storage and output history information of the power storage device, the operation of traversing the power storage and output history information of the power storage device, and the traversal of the power storage and output history information of all power storage devices, the operation of calculating the safety assessment factor of the power storage device according to the power storage and output history information of the power storage device, based on the iteration of the power storage priority queue and the power output priority queue, synchronously refresh the calculation;

[0049] An operation of recording the calculated safety assessment factor of the electric storage device, i.e., recording the safety assessment factor of the electric storage device calculated for the first time and each time it is refreshed, wherein the safety assessment factor of the electric storage device is recorded using a line graph, wherein the horizontal axis of the line graph representing the safety assessment factor of the electric storage device represents the number of calculations of the safety assessment factor of the electric storage device, and the vertical axis represents the value of the safety assessment factor of the electric storage device obtained from each calculation;

[0050] The calculation formula of the safety assessment factor of power storage equipment is:

[0051]

[0052] Where: δ is the safety assessment factor of the power storage equipment; The average daily amount of electricity stored in the power storage equipment; is the average daily output of the power storage device; u is the total amount of power storage history information of the power storage device; U a is the voltage stored in the power storage history information of the power storage device in group a; U(u) max 、U(u) min is the maximum and minimum storage voltages of the total amount of historical information stored in the storage device; v is the total amount of historical information output by the storage device; U b The output voltage of the b-th group of storage devices in the output power history information; U(v) max 、U(v) min The maximum output voltage and the minimum output voltage in the total amount of output history information of the power storage device;

[0053] Among them, the larger the safety assessment factor δ of the power storage equipment is, the safer the operation state of the power storage equipment is, and vice versa, the less safe it is;

[0054] Setting a safety determination threshold for the power storage device, comparing the latest recorded safety assessment factor for the power storage device with the set safety determination threshold for the power storage device, and determining whether the power storage device is operating safely;

[0055] If the result is safe, the activity of the next analysis of the power storage device is modified based on the safety assessment factor of the power storage device; if the result is unsafe, the power storage device with the unsafe result is kicked out of the power storage priority queue and the power output priority queue;

[0056] The logic of correcting the activity of the next analysis of the energy storage device based on the safety assessment factor of the energy storage device is expressed as:

[0057] f′=δ×f;

[0058] Where: f′ is the corrected activity; δ is the safety assessment factor of the power storage device; f is the activity of the power storage device;

[0059] The power storage equipment judged to be safe to operate is continuously monitored based on a line graph representing the safety assessment factor of the power storage equipment. When the latest three consecutive groups of safety assessment factors are monitored to be continuously reduced, the corresponding power storage equipment is judged to be unsafe;

[0060] Feedback from energy storage devices kicked out of two priority queues.

[0061] In this embodiment, through the execution of the method in the above embodiment, intelligent monitoring and management effects are brought to the power storage equipment in the energy storage power station, so that the potential fault problems of the power storage equipment can be discovered by the management end users in time, and based on this method, the power storage equipment is intelligently managed and controlled, and the power storage and output work is carried out in a more balanced manner.

[0062] Embodiment 2:

[0063] In terms of specific implementation, based on Example 1, this example refers to Figure 1 The active safety monitoring method for energy storage power station in Example 1 is further described in detail:

[0064] The energy storage equipment of the energy storage station is not unique. The storage and output history information of the energy storage equipment includes: storage time, storage amount, storage voltage, output time, output amount, output voltage, and real-time capacity. The storage and output history information of the energy storage equipment of the energy storage station is the storage and output history information of the energy storage station for no less than seven days in the past.

[0065] Among them, after analyzing the activity of the power storage device based on the historical information of power storage and output of the power storage device, each group of power storage devices is compared with the activity analysis result, and each power storage device is arranged in descending order according to the activity of the power storage device, so as to further obtain the activity queue of the power storage device;

[0066] The activity queue of the power storage equipment, i.e., the power storage priority queue of the power storage equipment in the energy storage station, and the reverse queue of the activity queue of the power storage equipment, i.e., the power output priority queue of the power storage equipment in the energy storage station;

[0067] Wherein, when the power storage equipment performs the daily power storage and power transmission operations of the energy storage power station based on the power storage priority queue and the power output priority queue, the real-time power storage and power output information of the energy storage equipment of the energy storage power station is monitored again as historical information to continuously obtain the power storage equipment activity queue, and the power storage priority queue of the energy storage equipment of the energy storage power station and the power output priority queue of the energy storage equipment of the energy storage power station are updated in real time based on the continuously obtained power storage equipment activity queue, and the real-time power storage and power transmission tasks are performed based on the power storage priority queue of the energy storage equipment of the energy storage power station and the power output priority queue of the energy storage equipment of the energy storage power station;

[0068] Each storage device in the energy storage power station obtains its corresponding safety assessment factor based on the calculation formula of the safety assessment factor of the storage device;

[0069] The safety judgment threshold of the power storage device is customized by the user. The setting format of the safety judgment threshold of the power storage device is (x, +∞). If the latest recorded safety assessment factor of the power storage device is within the safety judgment threshold, the judgment result is yes. If the latest recorded safety assessment factor of the power storage device is not within the safety judgment threshold, the judgment result is no.

[0070] In this embodiment, through the above settings, further execution data and logic support are provided for the execution of the steps of the method in Example 1, ensuring that the method in Example 1 stably monitors and controls the power storage equipment in the energy storage power station.

[0071] like Figure 1 As shown, each power storage device in the energy storage power station is equipped with a serial number or character mark;

[0072] The feedback operation of the power storage devices kicked out of the two priority queues is: obtain the power storage devices kicked out of the two priority queues, use the serial number or character mark corresponding to the power storage device as feedback information, and feedback to the mobile computer device held by the user end. The user end reads the feedback information on the mobile computer to determine the power storage devices kicked out of the two priority queues.

[0073] In summary, during the execution of the method in the above embodiment, the activity of the energy storage device is analyzed by collecting and analyzing the historical information of electricity storage and output of the energy storage device in the energy storage power station. When the energy storage device is used for storing and outputting electricity, a queue is generated according to the activity of the energy storage device to realize the intelligent configuration of the energy storage device used for storing and outputting electricity. The safety assessment factor of the energy storage device is further determined based on the historical information of electricity storage and output of the energy storage device, and the generated queue of energy storage devices for storing and outputting electricity is optimized, so that the energy storage device can be used for storing and outputting electricity in a more intelligent and adaptive manner.

[0074] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An active safety monitoring method for an energy storage power station, characterized in that: include: Monitor the historical information of power storage and output of power storage equipment in energy storage power stations, and analyze the activity of power storage equipment based on the historical information of power storage and output of power storage equipment; Obtain the activity of the energy storage equipment in the energy storage station, create a power storage priority queue and an output power priority queue according to the activity of the energy storage equipment in the energy storage station, and perform daily power storage and transmission of the energy storage station based on the power storage priority queue and the output power priority queue; Traversing the historical information of power storage and power output of the power storage equipment of the energy storage power station, calculating the safety assessment factor of the power storage equipment according to the historical information of power storage and power output of the power storage equipment, and recording the calculated safety assessment factor of the power storage equipment; Setting a safety determination threshold for the power storage device, comparing the latest recorded safety assessment factor for the power storage device with the set safety determination threshold for the power storage device, and determining whether the power storage device is operating safely; If the result is safe, the activity of the next analysis of the power storage device is modified based on the safety assessment factor of the power storage device; If the result of the determination is unsafe, the power storage device with the result of the determination is kicked out of the power storage priority queue and the power output priority queue; Feedback from energy storage devices kicked out of two priority queues.

2. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: The energy storage equipment of the energy storage station is not unique, and the energy storage and output history information of the energy storage equipment includes: energy storage time, energy storage amount, energy storage voltage, energy output time, energy output amount, output voltage, and real-time capacity. The energy storage and output history information of the energy storage equipment of the energy storage station is the energy storage and output history information of the energy storage station for no less than seven days in the past; Among them, after analyzing the activity of the power storage devices based on the historical information of power storage and output of the power storage devices, each group of power storage devices is compared with the activity analysis results, and each power storage device is arranged in descending order according to the activity of the power storage devices to further obtain the activity queue of the power storage devices.

3. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: The activity analysis logic of the power storage device is expressed as: Where: f is the activity of the power storage device; t out The accumulated time of power storage device outputting electricity; t in The accumulated storage time of the power storage device; g in Accumulated electricity for power storage equipment; g out is the accumulated power output of the power storage device; n is the total amount of power storage and output history information of the power storage device; q i The real-time capacity of the storage device in the storage or output history information of the i-th group of storage devices; q max ,q min is the maximum real-time capacity and the minimum real-time capacity of the power storage device in the power storage and output history information of the power storage device; γ is the normalization factor; in, Table pair The larger the activity f of the power storage device, the more active the power storage device is. Based on the above formula, the activity of each power storage device is calculated.

4. The active safety monitoring method for energy storage power station according to claim 1 or 2, characterized in that: The activity queue of the power storage device, i.e., the power storage priority queue of the power storage device of the energy storage station, and the reverse queue of the activity queue of the power storage device, i.e., the power output priority queue of the power storage device of the energy storage station; Among them, when the energy storage equipment performs the daily power storage and power transmission operations of the energy storage power station based on the energy storage priority queue and the output power priority queue, the real-time information of energy storage and power output of the energy storage equipment of the energy storage power station is monitored again as historical information to continuously obtain the activity queue of the energy storage equipment, and the energy storage equipment storage priority queue and the energy storage equipment output priority queue of the energy storage power station are updated in real time based on the continuously obtained activity queue of the energy storage equipment, and the real-time power storage and power transmission tasks are performed based on the energy storage priority queue and the energy storage equipment output priority queue of the energy storage power station.

5. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: When calculating the safety assessment factor of the power storage device according to the power storage and output history information of the power storage device, the operation of traversing the power storage and output history information of the power storage device, and the traversal of the power storage and output history information of all power storage devices, the operation of calculating the safety assessment factor of the power storage device according to the power storage and output history information of the power storage device, based on the iteration of the power storage priority queue and the power output priority queue, synchronously refresh the calculation; The operation of recording the calculated safety assessment factor of the electric storage device, i.e., recording the safety assessment factor of the electric storage device calculated for the first time and each time it is refreshed, the safety assessment factor of the electric storage device is recorded using a line graph, and in the line graph representing the safety assessment factor of the electric storage device, the horizontal axis represents the number of calculations of the safety assessment factor of the electric storage device, and the vertical axis represents the value of the safety assessment factor of the electric storage device obtained from each calculation.

6. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: The calculation formula of the safety assessment factor of the power storage equipment is: Where: δ is the safety assessment factor of the power storage equipment; The average daily amount of electricity stored in the power storage equipment; is the average daily output of the power storage device; u is the total amount of power storage history information of the power storage device; U a is the voltage stored in the power storage history information of the power storage device in group a; U(u) max 、U(u) min is the maximum and minimum storage voltages of the total amount of historical information stored in the storage device; v is the total amount of historical information output by the storage device; U b The output voltage of the b-th group of storage devices in the output power history information; U(v) max 、U(v) min The maximum output voltage and the minimum output voltage in the total amount of output history information of the power storage device; The larger the safety assessment factor δ of the power storage device is, the safer the operating state of the power storage device is, and vice versa.

7. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: Each power storage device in the energy storage power station obtains its corresponding safety assessment factor based on the calculation formula of the power storage device safety assessment factor; The safety determination threshold of the power storage device is customized by the user, and the setting format of the safety determination threshold of the power storage device is (x, +∞). If the latest recorded safety assessment factor of the power storage device is within the safety determination threshold, the determination result is yes; if the latest recorded safety assessment factor of the power storage device is not within the safety determination threshold, the determination result is no.

8. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: The logic of correcting the activity of the next analysis of the energy storage device based on the safety assessment factor of the energy storage device is expressed as: f′=δ×f; Where: f′ is the corrected activity; δ is the safety assessment factor of the energy storage device; f is the activity of the energy storage device.

9. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: The power storage equipment judged to be safe in operation is continuously monitored based on a line graph representing the safety assessment factor of the power storage equipment. When the latest three consecutive sets of safety assessment factors are monitored to be continuously decreasing, the corresponding power storage equipment is judged to be unsafe.

10. The active safety monitoring method for energy storage power station according to claim 1, characterized in that: Each power storage device in the energy storage power station is equipped with a serial number or character mark; The feedback operation of the power storage devices kicked out of the two priority queues is: obtain the power storage devices kicked out of the two priority queues, use the serial number or character mark corresponding to the power storage device as feedback information, and feedback to the mobile computer device held by the user end. The user end reads the feedback information on the mobile computer to determine the power storage devices kicked out of the two priority queues.

Citation Information

Patent Citations

  • Active safety monitoring and early warning method and system for lithium ion battery energy storage power station

    CN113609791A

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