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1. (WO2018019101) MEASUREMENT METHOD AND MEASUREMENT APPARATUS FOR REAL-TIME STATE OF CHARGE OF STORAGE BATTERY, AND STORAGE MEDIUM

Pub. No.:    WO/2018/019101    International Application No.:    PCT/CN2017/091820
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Thu Jul 06 01:59:59 CEST 2017
IPC: G01R 31/36
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: WU, Laiqiang
吴来强
WANG, Yong
汪勇
YANG, An
杨安
LONG, Mingxing
龙明星
Title: MEASUREMENT METHOD AND MEASUREMENT APPARATUS FOR REAL-TIME STATE OF CHARGE OF STORAGE BATTERY, AND STORAGE MEDIUM
Abstract:
A measurement method and measurement apparatus for a real-time state of charge (SOC) of a storage battery, and a storage medium. A charging efficiency coefficient E, a value of a state of health (SOH), and a Peukert correction coefficient ωi of a storage battery to be tested are obtained, so as to evaluate the impact of the charging efficiency and the SOH of the storage battery to be tested in a charging process and the magnitude of a discharge current in a discharging process on the SOC of the storage battery, and improve a direct ampere-hour accumulation method. Electric quantity-efficiency transform of the storage battery in the charging process, the actual discharge capacity in the discharging process, and aging factors of the storage battery are fully considered in the measurement method, and the SOC of the storage battery is known more scientifically and appropriately, the SOC of the storage battery can be more accurately estimated, the stability of estimation can be improved, and abnormal jump of an estimated value caused by Kalman filtering divergence can be avoided.