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Early warning method and system for battery of energy storage power station

An energy storage power station and battery technology, which is applied to secondary batteries, battery circuit devices, and secondary battery repair/maintenance. , errors, etc.

Pending Publication Date: 2022-04-26
浙江南都能源互联网有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are the following technical problems in the existing technology: 1. Early warning through local real-time upload data, combined with data at a certain moment, cannot truly reflect the internal problems of the energy storage battery
2. The above prior art method currently calculates the capacity of the power battery, and errors will occur over time, and will become larger and larger, which cannot accurately reflect the battery capacity
3. The above-mentioned prior art methods are unable to carry out energy storage battery early warning and future battery operation across time width
4. The above method cannot give the maintenance guidance after the battery warning and the operation status tracking after the battery is replaced, and cannot judge the health status of the battery

Method used

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  • Early warning method and system for battery of energy storage power station
  • Early warning method and system for battery of energy storage power station

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Embodiment Construction

[0022] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0023] It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

[0024] Please combine Figure 1-Figure 2 , the present invention discloses a battery early warning method and system for an energy ...

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Abstract

The invention discloses an energy storage power station battery early warning method and system, and the method comprises the steps: obtaining the voltage and current data of a battery stack, the current data of a battery pack, and the voltage, current and SOC data of a single battery, and building a power station battery early warning model; generating a standard charge-discharge curve of the power station battery stack, the battery pack and the single battery; according to the obtained voltage and current data of the battery stack, the current data of the battery pack, and the voltage, current and SOC data of the single battery, generating an actual charging and discharging curve of the battery stack, the battery pack and the single battery of the power station; and judging whether a non-battery factor fault exists or not according to an actual charging and discharging curve, and if the non-battery factor fault does not exist, judging a fault reason through the power station battery early warning model. According to the method and the system, key data of a battery stack, a battery pack and a single battery in an energy storage battery are used for generating a standard charging and discharging curve, battery early warning models of different levels are established through the charging and discharging curve, and the health degrees of the batteries of different levels in an energy storage power station can be judged.

Description

technical field [0001] The invention relates to the field of energy storage technology, in particular to a battery early warning method and system for an energy storage power station. Background technique [0002] At present, the fixed threshold set on the BMS of the main station is used for early warning, and the early warning results are reported to the platform, and the state of the battery is judged through its own operation and maintenance experience, and whether there are hidden dangers. However, there are the following technical problems in the prior art: 1. Early warning through local real-time uploaded data, combined with data at a certain moment, cannot truly reflect the internal problems of the energy storage battery. 2. The above prior art method currently calculates the capacity of the power battery, and errors will occur as time goes by, and will become larger and larger, which cannot accurately reflect the battery capacity. 3. The above-mentioned prior art me...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/42H01M10/48
CPCH02J7/00036H02J7/0047H02J7/0048H02J7/0068H02J7/005H02J7/0069H01M10/4207H01M10/4257H01M10/482H01M10/486H01M2010/4271Y02E60/10
Inventor 谭建国曹晓东蔡顺斯元海曹攀吴贤章
Owner 浙江南都能源互联网有限公司
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