Method and device for predicting service life of battery energy storage system and equipment

A battery energy storage system and life prediction technology, which is applied to measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of large life prediction errors, no consideration of complex working conditions of battery energy storage systems, and low accuracy

Active Publication Date: 2021-04-02
BEIJING HYPERSTRONG TECH
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Problems solved by technology

[0004] However, in the existing technology, this prediction method does not take into account the complex working conditions of the battery energy storage system during actual use, resulting in large errors and low accuracy in life prediction

Method used

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  • Method and device for predicting service life of battery energy storage system and equipment
  • Method and device for predicting service life of battery energy storage system and equipment
  • Method and device for predicting service life of battery energy storage system and equipment

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Embodiment Construction

[0092] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0093] Before introducing the embodiment of the application, at first the background technology of the application is explained:

[0094] With the continuous development of new energy technologies, battery energy storage systems are playing an increasingly important role in various industries. But at the same time, the disadvantages of the battery energy sto...

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Abstract

The invention provides a method and device for predicting the service life of a battery energy storage system and equipment . The method comprises the following steps: acquiring working condition dataof the battery energy storage system comprising a plurality of battery units in a preset time period, and calculating the total life attenuation of the battery energy storage system in the preset time period based on the working condition data, a pre-acquired cycle life attenuation rate parameter table of the battery units and a calendar life attenuation rate parameter table, and then according to the SOH of the battery energy storage system at the beginning of the preset time period and the total life attenuation, calculating the SOH of the battery energy storage system at the end of the preset time period, and finally according to the SOH of the battery energy storage system at the end of the preset time period, acquiring the remaining service life of the battery energy storage system.According to the method, the SOH at the end of the preset time period is determined through the total life attenuation in the preset time period and the SOH at the beginning of the preset time period,so that the life of the battery energy storage system can be predicted more accurately.

Description

technical field [0001] The present application relates to the field of battery technology, and in particular to a method, device and equipment for predicting the life of a battery energy storage system. Background technique [0002] Battery energy storage systems are widely used in electric vehicles and energy storage systems, and their application prospects are broad. With the continuous development of the industry that uses battery energy storage systems, the requirements for battery energy storage systems are also getting higher and higher. As the energy system changes over time, it will be accompanied by problems such as aging and capacity attenuation of battery cells in different degrees, resulting in a decrease in the overall throughput and service time of the battery energy storage system, and cannot maximize economic benefits. Therefore, the battery Predicting the life of the energy storage system can increase the residual value of the battery energy storage system t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/367G01R31/392
CPCG01R31/367G01R31/392
Inventor 陈元璐何志超王垒吕喆钱昊
Owner BEIJING HYPERSTRONG TECH
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