新能源汽车用新型开关磁阻电机驱动系统

New System of Switched Reluctance Drive for New Energy Vehicles

续航里数不足与充电基础设施匮乏是制约新能源汽车取代内燃机机车的主要因素。为解决该难题,提出一种新型分裂式开关磁阻电机驱动系统,该系统以定子绕组分裂式开关磁阻电机为驱动电机,以分裂式不对称半桥型功率变换器为内置驱动与充电装置,通过变换功率变换器工作方式实现电机驱动与电池充电的双功能。仿真与实验结果表明,该系统在未增加额外硬件设施条件下,可实现电机驱动与车载充电,控制效果良好,并具有一定容错能力。

Lacks of mileage and charging infrastructure are the main factors which restrict the new energy vehicles to replace internal combustion engine locomotive. To solve this problem,a new split-type system for SRD was presented,which used a switched reluctance motor with split-typed stator winding as the driving motor,and adopted the split asymmetric half-bridge power converter as the built-in drive and charging device. Through transforming the working ways of the power converter,the system could achieve dual function of driving and battery charging. Simulation and experimental results show that the system can realize functions of the motor drive and the vehicle charging without the extra hardware facilities,and has a perfect control effect and fault tolerance.