摘要
为了提高表贴式永磁同步电机的调速性能,提出一种基于新型锁相环(PLL)的转子位置估计方法.首先,针对表贴式永磁同步电机定子反电动势进行谐波分析,定义谐波成分在旋转坐标系下的表现形式;然后,为提高转子位置估计性能,针对特定谐波成分设计由自适应陷波器(ANF)和低通滤波器(LPF)串级组成的新型滤波器;最后,对新型PLL与同步旋转坐标系锁相环(SRF-PLL)进行对比仿真实验,实验结果表明,所提出的新型PLL不仅能保证较高的估计精度,而且具有较快的转子位置跟踪速度和较强的滤波性能.
To improve the performance of the surface permanent magnet synchronous motor(SPMSM)drives,a rotor position estimation method based on a novel phase-locked loop(PLL)is proposed.Firstly,the harmonic of back electromotive force(back-EMF)of SPMSM is analyzed,the form of harmonic in a rotating coordinate system is defined. Then,in order to improve the accuracy of rotor estimation,a novel filter composed of adaptive notch filter(ANF)and low pass filter(LPF)is designed to extract the specific harmonic.Finally,the simulation experiments are implemented to compare the performance of the proposed PLL and synchronous reference frame PLL(SRF-PLL).The results show that the proposed PLL achieves faster tracking speed and better filtering performance with the a high accuracy of rotor position estimation.
作者
王大志
闫晓鸣
李云路
王兴宇
王兴华
WANG Da-zhi;YAN Xiao-ming;LI Yun-lu;WANG Xing-yu;WANG Xing-hua(College of Information Science and Engineering,Northeastern University,Shenyang 110004,China;Physical.Education Department,Northeastern University,Shenyang 110004,China)
出处
《控制与决策》
EI
CSCD
北大核心
2018年第12期2161-2168,共8页
Control and Decision
基金
国家自然科学基金重点项目(61433004)
