Control Strategy of Constant Current Discharging for Storage Battery for V2G Application

doi:10.11930/j.issn.1004-9649.2014.7.35.3

Abstract

Abstract: The storage battery is a the key part of V2G (Vehicle to Grid) technology, which not only acts as an energy storage for power grid to supply power to electric vehicles, but also realizes the function of power transmission integration to grid. Deep discharge of the battery may reduce the battery life and make the power system instable. Based on these damages, a control strategy of constant-current power transmission combined with automatic disconnection of the inverter circuit is proposed. According to this control strategy, a discharging model of storage battery is built and simulated. Simulation results show that, by controlling the PWM wave of the full controlled device, the discharging current of the battery can be controlled effectively to avoid its deep discharge and achieve a stable and reliable discharge process. The simulation validates the correctness of the model and the feasibility and effectiveness of the control strategy.

Key words: V2G, storage battery, electric vehicle, transmission integration, constant current control

CLC Number:

TM912.1

MA Li-xin, MU Qing-lun, FEI Shao-shuai, WU Xing-feng. Control Strategy of Constant Current Discharging for Storage Battery for V2G Application[J]. Electric Power, 2014, 47(7): 35-38.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.7.35.3

https://www.electricpower.com.cn/EN/Y2014/V47/I7/35

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