Title:
BATTERY PACK SOH ESTIMATION METHOD AND RESIDENTIAL ENERGY STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/216243
Kind Code:
A1
Abstract:
The present application relates to the field of residential energy storage, and discloses a battery pack SOH estimation method and a residential energy storage system. The method comprises: estimating the number of times of charging and discharging cycles of a battery pack; calculating a first SOH of the battery pack by applying the number of times of charging and discharging cycles; calculating the number of years of use of the battery pack; calculating a second SOH of the battery pack by applying the number of years of use; measuring and calculating an ultimate discharge capacity of the battery pack; calculating a third SOH of the battery pack by applying the ultimate discharge capacity; and comparing the sizes of the first SOH, the second SOH and the third SOH, and taking the minimum value as an SOH of the battery pack. By using the present application, the accuracy of determining and estimating the SOH is improved.
Inventors:
CHEN PEIMING (CN)
WANG DAQING (CN)
WANG DAQING (CN)
Application Number:
PCT/CN2022/092754
Publication Date:
November 16, 2023
Filing Date:
May 13, 2022
Export Citation:
Assignee:
FRANKLINWH TECH CO LTD (CN)
International Classes:
G01R31/392
Foreign References:
| KR102180625B1 | 2020-11-18 | |||
| CN111098756A | 2020-05-05 | |||
| CN111060833A | 2020-04-24 | |||
| CN105607004A | 2016-05-25 | |||
| CN111929596A | 2020-11-13 | |||
| CN106585422A | 2017-04-26 | |||
| CN101625398A | 2010-01-13 | |||
| CN112540313A | 2021-03-23 |
Attorney, Agent or Firm:
SHENZHEN ZHONGDINGHUICHENG INTELLCCTUAL PROPERTY AGENCY (CN)
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