霍尔位置检测的电动汽车永磁电机矢量控制  

Vector Control of Permanent Magnet Motor Using Hall Sensors for Electric Vehicles

作　　者：易磊 曲荣海[2] 李新华[1] 孔武斌[2] YI Lei;QU Rong-hai;LI Xin-hua;KONG Wu-bin(Hubei University of Technology,Wuhan 430068,China;Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]湖北工业大学,武汉430068 [2]华中科技大学,武汉430074

出　　处：《微特电机》2018年第9期63-67,共5页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51407082);国家自然科学基金项目(51337004);绿色工业科技研究项目(ZZTS2017003)

摘　　要：针对轻型电动汽车用永磁同步电动机位置传感器成本过高的问题,提出基于霍尔传感器的位置估算算法得到连续位置信号,在获得连续转子位置的基础上实现正弦波电流驱动的矢量控制。研究了电机起动过程中方波和正弦波电流切换方式,采用基于电压外环的弱磁控制策略以实现高速运行。搭建以STM32F103为核心的实验平台进行电机性能测试,实验结果表明,该控制方法能实现电机过载起动和高速运行要求。The high cost position sensors were widely used for permanent magnet synchronous motor in the light electric vehicles.In order to solve this problem,a position estimation algorithm based on Hall sensor was proposed to obtain continuous position signal.Sine-wave current-driven vector control was achieved on the basis of continuous rotor position.In addition,the method of square wave and sine wave current switching in the motor startup process was studied.The flux-weakening control strategy based on the voltage outer loop was used to achieve high-speed operation.An STM32F103-based experimental platform was set up for motor performance testing.The experimental results show that the proposed control method can realize the requirements of motor overload startup and high-speed operation.

关 键 词：永磁同步电动机 电动汽车 霍尔传感器 弱磁控制 

分 类 号：TM351[电气工程—电机]