双三相电机低边电阻电流采样重构技术研究  

Low-Side Resistance Current Sampling and Reconstruction Technology of Dual Three-Phase Motor

作　　者：孟永刚 陆芳珂 陆海峰[2] 隋巧梅 MENG Yonggang;LU Fangke;LU Haifeng;SUI Qiaomei(DiAS Automotive Electronic Systems Co.,Ltd.,Shanghai 201206,China;Department of Electrical Engineering and Applied Electronic Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]联创汽车电子有限公司,上海201206 [2]清华大学电机工程与应用电子技术系,北京100084

出　　处：《汽车零部件》2022年第S01期55-60,共6页Automobile Parts

摘　　要：双三相电机驱动系统具有容错能力强、易实现低压大功率运行等优点,在电动汽车领域具有广阔的应用前景。汽车行业对成本极其敏感,为了降低系统成本,论文研究了双三相电机低边电阻电流采样重构技术。这种方法利用零矢量作用时流经下桥臂的电流对相电流进行重构,在硬件上大大简化,降低了成本,适用于低压系统。文中对该算法进行了失效区分析,并通过仿真验证了在算法适用范围内的重构效果。Dual three-phase motor drive system gets more and more attention with many advantages such as strong fault tolerance,easy to achieve high power with low voltage.The automotive industry is extremely sensitive to costs.In order to reduce the cost,the paper studies the low-side resistance current sampling and reconstruction technology of dual three-phase motor.By the current sampling resistor in the lower ann of the inverter,the phase currents are reconstructed by the currents flowing through the lower arm when adopting the zero vector.In this paper,the failure zone of this method is analyzed,and the effect of reconstruction is verified.

关 键 词：双三相电机 低边电阻电流采样重构 失效区 

分 类 号：U463.4[机械工程—车辆工程]