摘要
针对功率等级较高的电动汽车提出一种充电与驱动集成化拓扑。通过共用相同的电力电子器件将充电系统和电机驱动系统相集成。该集成拓扑结构中充电系统采用一种基于磁组合变压器的三相输入组合式全桥变换器。充电系统中的三个单相桥式变换器可以重构成双逆变器。将双逆变器和阻抗源网络相结合驱动开放式绕组感应电机。充电模式和驱动模式通过相应的切换开关实现。在实际工程应用中,集成拓扑连接导线较长,寄生参数对电路的性能影响就会较大,因此采用了一种缓冲电路。所提集成化拓扑具有功率因数高、电气隔离、单级升/降压、可靠性高以及自容错能力等优点。仿真和实验结果验证了该集成化拓扑结构的可行性。
A kind of integrated topology of charging and drive is proposed for medium/high power-level electric vehicles （EVs）. Charging system and motor drive system can be integrated through the same power devices. Three-phase combined full-bridge converter based on magnetic-combination transformer is adopted in the charging system of the integrated topology. The dual-inverter is the reconfiguration of three H-bridge inverters. The combination of the dual-inverter and the impedance network source is applied to open-end winding induction motor （OWIM） drive system. Charging mode and drive mode can be changed by switching. In practical engineering applications, the connection wire is longer, and the influence of the parasitic parameters is greater on the circuit performance. Hence, the buffer circuit is adopted. The proposed integrated topology of charging and drive has high power factor, electric isolation, single-stage boost/buck function, high reliability, and fault-tolerance. Simulation and experimental results verify the feasibility of the integrated topology.
出处
《电工技术学报》
EI
CSCD
北大核心
2017年第12期138-145,共8页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(50977045)
江苏省普通高校研究生科研创新计划(CXLX13_153)
中央高校基本科研业务费专项资金资助项目
关键词
电动汽车
集成化拓扑
磁组合变压器
电气隔离
阻抗源网络
开放式绕组感应电机
Electric vehicles, integrated topology, magnetic-combination transformer, electric isolation, impedance source network, open-end winding induction motor （OWIM）
