摘要
研究了永磁同步电机(PMSM)基于滑模观测器(SMO)的无位置传感器控制方式,在进行转子位置估计时,传统SMO存在速度估算不精确和抖振等问题。系统采用饱和函数代替了传统开关函数来削弱抖振,采用变截止滤波器及锁相环模块来提取准确的速度、位置信号来解决上述问题。在Matlab环境下建立了仿真模型并进行分析。最后搭建了硬件平台,对系统硬件模块进行了测试,并对结果进行了分析。
Based on sliding mode observer（SMO） the control for permanent magnet synchronous motor （PMSM） position sensorless control system is researched.At the time of the rotor position estimation ,traditional SMO device in estimated rotor location that it exist shake vibration and speed estimates not precise enough.Saturation function is used instead of switching functions to reduce buffeting, variable cut-off filters and phase-locked loop modules to extract accurate speed and position signal.The simulation model is established and analyzed in the Matlab environment.And finally hardware platform is built to test and analyze.
出处
《电力电子技术》
CSCD
北大核心
2018年第1期94-96,共3页
Power Electronics
关键词
永磁同步电机
滑模观测器
饱和函数
permanent magnet synchronous motor
sliding mode observer
saturation function
