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钒液流电池的综合建模研究

Release Time:2019-11-01  Hits:

Indexed by: Journal Papers

Date of Publication: 2019-01-01

Journal: 电工电能新技术

Included Journals: PKU

Volume: 38

Issue: 9

Page Number: 73-80

ISSN: 1003-3076

Key Words: 全钒液流电池;动态等效电路;仿真模型

Abstract: 本文以全钒液流电池(VRB)的等效电路模型为基础,包括电堆电动势、过电势和欧姆极化,结合分析离子扩散、电解液流动损耗和温度变化的动态模型,在Simulink中建立了VRB的动态等效电路仿真模型.将实验测量的参数代入所建立的模型中,对比了恒流以及恒功率充放电的实验与仿真曲线,经定量分析可知所建立模型的误差小于1%.最后结合仿真数据分析了VRB的电荷效率和能量效率,结果表明充放电循环电流/功率越大,其电荷效率越高,但能量效率随之降低.

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