Research on Comprehensive Evaluation Method of Battery Consistency in Energy Storage Power Station

doi:10.16628/j.cnki.2095-8188.2022.05.004

Abstract

Abstract:

The construction of new energy storage in China is advancing at a high speed.The health state of the energy storage power station is affected by the operating conditions and environment.Each battery unit will be inconsistent in varying degrees,which will affect the operation safety of the power station.By analyzing the voltage and temperature deviation of the energy storage single battery under different operating conditions,combined with the average voltage,range voltage,voltage standard deviation,voltage variation coefficient,range temperature and maximum temperature index parameters of the single battery,a comprehensive evaluation method for the consistency of the energy storage single battery is put forward by the using analytic hierarchy process,which can quantitatively reflect the consistency degree of the energy storage single battery,and avoid the inconsistency and extnsive classification.It can provide theoretical support for battery operation and maintenance analysis of the energy storage power station and improve the safe operation of the energy storage power station.

Key words: energy storage power station, battery, voltage standard deviation, maximum temperature, consistency analysis

CLC Number:

TM912

JIN Wentao, LI Yuyang, JIA Xuecui, LI Xiangjun. Research on Comprehensive Evaluation Method of Battery Consistency in Energy Storage Power Station[J]. LOW VOLTAGE APPARATUS, 2022, 0(5): 23-28.

Figures/Tables 13

References 17

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指标	一致性状态评估指标阈值
指标	健康	亚健康	严重	恶劣
极差电压/mV	≤100	100~200	200~400	≥400
电压标准差/%	≤0.2	0.2~0.4	0.4~0.6	≥0.6
变异系数/%	≤5	5~10	10~15	≥15
极差温度/℃	≤6	6~8	8~10	≥10
最大温度/℃	≤25	25~35	35~45	≥45