Title:
BATTERY PACK STRING FAULT IDENTIFICATION METHOD IN PHOTOELECTRIC SYSTEM, APPARATUS AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/148336
Kind Code:
A1
Abstract:
Provided are a battery pack string fault identification method in a photoelectric system, an apparatus and a device. The method comprises: acquiring at least two sets of I-V numerical values of a first battery pack string in a photoelectric system; performing fitting processing by adopting a predetermined pack string physical model according to the at least two sets of I-V numerical values so as to obtain at least one feature parameter of the first battery pack string; and comparing the at least one feature parameter with a standard feature parameter acquired in advance to determine whether the first battery pack string fails, or performing curve fitting processing on collected data through the pack string physical model. The method can be widely applied, feature parameters obtained through integrated processing of all actually measured data of a battery pack string are compared with the standard feature parameters when a fault does not occur, misjudgement is not caused by a test error of individual points and judgement does not depend on an environment, and thus, the solution is not influenced by environmental inconsistency and processing efficiency and accuracy of pack string fault identification are effectively improved.
Inventors:
YANG GUANGPING (CN)
GAO YONGBING (CN)
GAO YONGBING (CN)
Application Number:
PCT/CN2017/074813
Publication Date:
September 08, 2017
Filing Date:
February 24, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02S50/10
Foreign References:
| CN104778345A | 2015-07-15 | |||
| CN104796082A | 2015-07-22 | |||
| CN102162832A | 2011-08-24 | |||
| CN105827200A | 2016-08-03 | |||
| CN103701410A | 2014-04-02 |
Other References:
See also references of EP 3416283A4
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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