| 引用本文: | 吴 凯,程启明,李 明,白园飞,陈 根.具有V2G功能的电动汽车快速充放电方法[J].电力自动化设备,2014,34(2): |
| WU Kai,CHENG Qiming,LI Ming,BAI Yuanfei,CHEN Gen.Fast charging and discharging method for electric vehicle with V2G function[J].Electric Power Automation Equipment,2014,34(2): |
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| 摘要: |
| 为充分发挥电动汽车的能量双向流动特性，提出一种具有V2G功能的电动汽车快速充放电方法。可逆充放电机主要包括可逆PWM整流器和双向DC／DC变换器。可逆PWM整流器采用前馈解耦的电压电流双闭环控制，并用LCL滤波代替L滤波，在保证相同滤波效果条件下，降低电感值并提高了系统的响应速度；双向DC／DC变换器采用电流闭环控制来有效控制充放电电流维持在恒定值，采用脉冲充电和恒流放电使电动汽车的充放电电流维持在35 A左右，实现快速充放电功能。仿真结果证明了所提方法的正确性和可行性。 |
| 关键词: 电动汽车 电池 V2G 可逆PWM整流器 双向DC／DC变换器 脉冲充电 恒流放电 前馈控制 |
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| 基金项目:上海市重点科技攻关计划项目（11510500800）；上海市教委“085工程”科研项目（Z08509122）；上海市教委重点学科建设项目（J51301） |
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| Fast charging and discharging method for electric vehicle with V2G function |
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WU Kai, CHENG Qiming, LI Ming, BAI Yuanfei, CHEN Gen
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College of Automation Engineering，Shanghai University of Electric Power，Shanghai 200090，China
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| Abstract: |
| To make full use of the bi-directional energy flow of EV（Electric Vehicle），a fast charging and discharging method is proposed for EV with V2G function. The reversible charger of EV contains a reversible PWM rectifier and a bi-directional DC／DC converter. The former is controlled by the feedforward decoupled voltage-current dual close loops and its L filter is replaced by LCL filter，which decreases the inductance for same filtering effect and improves the system response speed；the latter is controlled by the current close loop to effectively keep the pulse charging or constant-current discharging current around 35 A for realizing the fast charging and discharging function. Simulative results show the validity and feasibility of the proposed method. |
| Key words: electric vehicles electric batteries V2G reversible PWM rectifier bi-directional DC／DC converter pulse charging constant-current discharging feedforward control |
