双线反向并绕结构的四相无刷直流电机

Four-Phase BLDCM of Double-wires Reverse Structure

针对一种特殊结构的四相无刷直流电机的续流工作特点以及绕组漏感影响进行研究,分析了这类电机的绕组结构、续流工作方式以及绕组漏感给功率开关管带来的电压冲击,同时建立了该电机的数学模型,并在MATLAB/Simulink平台上对整个半桥控制系统进行了仿真,最后对这类电机进行了实验研究。仿真和实验结果均很好地说明了这类电机系统的续流工作特点与绕组漏感给功率开关管带来的电压冲击影响,同时也为这类电机的结构设计和控制电路功率开关管选型提供了理论参考。

Aiming at analyzing the freewheeling features and influence of leakage inductance of a special structured four phase BLDCM.Firstly explained the novel windings structure,the freewheeling method and power switches voltage impact brought by winding leakage inductance,then established the mathematical model of the motor,uses MATLAB/Simulink software to simulate the whole control system.Finally performed experiment to check the actual features of such kind of motor systems.The simulation and experiment results verify the foregoing analysis and illustrate the special freewheeling method,provide theoretical reference for the design of this kind of novel motors and for the selection of proper power switches.