径向力激发噪声最小的开关磁阻电动机开关角优化  

Control Optimization of Switching on and off Angles Based on Minimal Noise Excited by Stator Radial Force in Switched Reluctance Motors

作　　者：王伟炳[1] 许峰[1,2] 许大宇[1] 王芳[1] 

机构地区：[1]南京工程学院,江苏南京211167 [2]东南大学,江苏南京210096

出　　处：《微特电机》2011年第8期10-13,共4页Small & Special Electrical Machines

基　　金：南京工程学院人才引进科研启动基金资助项目(YKJ200905)

摘　　要：开关磁阻电机噪声主要是其径向力波使二阶振型模态产生偏移引发的。针对开关角是开关磁阻电机中两个最为重要的控制参数的特点,提出了开关磁阻电机电压PWM控制方式下开关角的两次在线寻优方法。寻优原理以径向力激发的二阶振型模态最高噪声声级最小为目标,并依据寻优步长不同实行两次优化搜索。仿真结果表明,两次在线寻优的开关角能使开关磁阻电机运行时激发的二阶振型模态最高噪声声级显著降低,从而使得整体噪声减小。Noise of switched reluctance motors is mainly induced by radial force＇s exciting on 2nd vibrating mode.According to the feature that switching on and off angles are two most important control parameters in switched reluctance motors,twice online optimization of these two angles was proposed under voltage PWM control mode.This principle aimed to minimizing highest noise level of 2nd vibrating mode excited by radial force,and twice optimizations were performed due to different steps.Simulation indicates that twice online optimization could dramatically decrease highest noise level of 2nd vibrating mode excited by radial force in switched reluctance motor.

关 键 词：开关磁阻电机 径向力 最高噪声声级 在线寻优 二阶振型模态 开关角 

分 类 号：TM352[电气工程—电机]