基于V2G应用的蓄电池恒流放电的控制策略  

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

作　　者：马立新[1] 穆清伦[1] 费少帅 吴兴峰 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《中国电力》2014年第7期35-38,共4页Electric Power

基　　金：国家自然科学基金投资项目(61205076)

摘　　要：蓄电池是V2G(Vehicle to Grid)技术应用的关键环节,它不仅作为电网为电动汽车供电的蓄能部分,而且也能实现并网输电的功能。针对蓄电池深度放电给蓄电池带来损害,进而缩短使用寿命和系统欠稳定的问题,提出了一种分阶段恒流输电且具有自动切断逆变电路的控制策略。根据该控制策略搭建了蓄电池的放电模型进行仿真试验,仿真结果表明根据控制全控器件的PWM波形,可以有效控制蓄电池的放电电流大小,避免蓄电池组的深度放电,达到稳定且可靠的放电过程,验证了该模型的正确性及所提控制策略的可行性和有效性。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.

关 键 词：V2G 蓄电池 电动汽车 并网输电 恒流控制 

分 类 号：TM912[电气工程—电力电子与电力传动]