一种变参数N-PI型PLL的霍尔位置传感器PMSM转子位置估计方法  

Hall sensor PMSM rotor position estimation method with variable parameter N-PI PLL

作　　者：廖勇[1] 李蓬威 林豪 燕罗成 LIAO Yong;LI Peng-wei;LIN Hao;YAN Luo-cheng(School of Electrical Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆大学电气工程学院,重庆400044

出　　处：《电机与控制学报》2020年第11期27-36,47,共11页Electric Machines and Control

基　　金：重庆市科委基础研究与前沿探索重点项目(cstc2017jcyjBX0072)。

摘　　要：在采用开关型霍尔位置传感器的永磁同步电机矢量控制系统中,传感器安装偏差严重降低了转子位置估计精度,分析3扇区平均速度位置估计偏差中偶次谐波和直流偏置的产生机理,建立位置偏差函数的数学模型,提出一种变参数的陷波-比例积分锁相环(N-PI型PLL)位置估计方法,消除位置估计偏差中的2次谐波及更高的偶次谐波,根据锁相环的工作原理及要消除的谐波,设计和优化了陷波-比例积分锁相环的参数。并通过仿真和实验结果验证了所提方法的正确性和有效性。In the PMSM vector control system with switching hall position sensor,the sensor installation deviation seriously reduces the rotor position estimation accuracy.Generation mechanism of even harmonics and DC offset were analyzed in the three-sector average speed position estimation deviation.The mathematical model of the position deviation function was established,and a variable-parameter notch-scale integral phase-locked loop(N-PI PLL)position estimation method was proposed to eliminate the second harmonic in the position estimation deviation and the higher even harmonic.According to the working principle of the PLL and the harmonics to be eliminated,the parameters of the N-PI PLL were designed and optimized.Correctness and effectiveness of the proposed method are verified by simulation and experimental results.

关 键 词：霍尔位置补偿 N-PI型PLL 参数设计 矢量控制 

分 类 号：TM341[电气工程—电机]