摘要
针对表贴式永磁同步电机给出了一种基于脉振高频电压信号注入的转子位置辨识方法。首先对该辨识策略的基本原理进行了介绍,给出可以应用在低速和静止下的辨识模型;其次,推导出该模型的位置估计误差,进而对该模型的稳定性和鲁棒性进行了分析。分析发现,无论是处于低速还是静止状态,该模型表现很好的稳定性和鲁棒性,并且不依赖电机参数,仿真分析验证了理论分析的正确性和所提策略的有效性。
A sensorless control algorithm based on high frequency pulsating voltage injection used in a surfacepermanent magnet synchronous motor(SPMSM)was presented. The basic theory of the estimation strategy wasintroduced,and the estimation model used in low speed range including standstill was provided concretely. Theanalysis of the estimated error and the mathematical proof of convergence was presented. The analysis showed that theconvergence of this strategy does not depend on the machine parameters at low speed or zero,which demonstrated thestabilization and robustness of the presented sensorless algorithm. The simulation results show the validity of thetheoretical analysis and the feasibility of the estimation strategy.
出处
《电气传动》
北大核心
2016年第6期3-6,53,共5页
Electric Drive
关键词
表贴式永磁同步电机
无位置传感器
高频脉振电压注入
鲁棒性
surface permanent magnet synchronous motor
sensorless
high frequency pulsating voltage injection
robustness
