一种电流型电动汽车快速充电电路研究  

Research of Fast-charging Battery Charger of Electric Vehicles Based on Current-source Rectifier

作　　者：张达敏[1] 吕征宇[2] 王仕韬 康少波[1] 

机构地区：[1]厦门理工学院,高电压技术福建省重点实验室,福建厦门361024 [2]浙江大学,电气工程学院,浙江杭州310027 [3]国网技术学院,山东济南250002

出　　处：《电力电子技术》2017年第2期100-102,共3页Power Electronics

基　　金：国家自然科学基金(51407151);福建省自然科学基金项目(2015J05113)~~

摘　　要：提出一种电流型电动汽车(EV)快速充电电路,具有单级结构、宽输出电压的特点。分析了电流型柔性变拓扑充电电路的工作原理,通过柔性变拓扑实现两种等效工作拓扑,满足不同的负载电压和功率需求,并改善网侧谐波电流和功率因数。为实现快速充电,将电流预测控制和多段恒流充电结合,对电流预测控制策略实现多段恒流充电的过程展开详细分析并通过仿真和实验验证。仿真和实验表明电流预测控制器能快速调整充电电流,验证了电流型柔性变拓扑充电电路的可行性。A current-source battery charger for electric vehicles （EV） is presented, characterizing single stage and wide output voltage.The operating mechanism of the proposed charger is developed, then two equivalent topologies are ob- tained for the sake of wide voltages,diverse power demands.Furthermore,power factor and grid-side harmonic cur- rents are improved to some extent, as compare to traditional thyristor-based multi-pulse rectifiers.The scheme of multistep constant-current charging is combined with predictive current control,which enables fast current response.Simulation and experiment verifications are carried out in detail for the implementation of multi-step current charging.Results show the capability of fast charging by the predictive current controller, the effectiveness of the ftexible-topolo-gybased current-source battery charger.

关 键 词：电动汽车 充电电路 柔性变拓扑 

分 类 号：U469.72[机械工程—车辆工程]