ANALYSIS OF CHARGING AND DISCHARGING PERFORMANCE OF A VANADIUM REDOX FLOW BATTERY-BASED ENERGY-STORAGE SYSTEM

Li Wang ； Zhi-Hong Huang ； Ching-Wen Tseng ； Min-Fang Lee ； Ching-Chung Tseng ； Hung-Hsien Ku ； Chin-Lung Hsieh ； Anton V. Prokhorov ； Hazlie Bin Mokhlis ； Kein Huat Chua ； Manoj Tripathy

《電機工程學刊》 29卷3期 (2022/06) Pp. 85-96

https://doi.org/10.6329/CIEE.202206_29(3).0003

摘要

The purpose of this paper is to develop an equivalent-circuit model (ECM) of a vanadium redox flow battery (VRFB)-based energy-storage system (ESS) for simulating its operating characteristics under distinct charging and discharging conditions. Comparative experimental measured results and computer simulated outcomes of a VRFB-ESS subject to various charging and discharging conditions are demonstrated in this paper. The laboratory experimental platform of the studied VRFB-ESS includes an experimental VRFB set of rated 500 W, a battery monitoring instrument, a programmable DC power supply, a single-phase DC/AC power inverter, an AC load, and a power-resistor load. The parameters of the ECM of the studied VRFB-ESS are obtained from some selected measured results. After comparing the measured and simulated results, the average errors of voltage and power of the studied VRFB-ESS under distinct charging and discharging operations can be less than the expected tolerance of 2%.

關鍵字

vanadium redox flow battery ； energy-storage system ； equivalent-circuit model ； experimental measurements ； simulation outcomes