【作者】 王旭； 邢岩； 于洪亮； 杨丹；

【Author】 WANG Xu;XING Yan;YU Hong-liang;YANG Dan;College of Information Science and Engineering, Northeastern University;

【机构】 东北大学信息科学与工程学院；

【摘要】 针对永磁同步电动的特点,以减小传统直接转矩控制中磁链和转矩脉动为目标,提出基于粒子滤波理论的定子磁链观测器。文中给出了标准粒子滤波算法模型,重点讨论了粒子滤波观测器在高性能永磁同步电动机直接转矩控制系统中的应用。用易于测量的电机端电压和定子电流作为已知信息,采用粒子滤波算法实时地在线估计永磁同步电动机的定子磁链,得到直接转矩控制系统磁链反馈信号。对控制算法进行仿真,结果表明所提出的算法估计精度高,系统性能好。更多还原

【Abstract】 According to the characteristic of permanent magnet synchronous motor(PMSM), a novel stator flux observer based on Particle Filter(PF) is introduced in order to reduce the ripple at direct torque control(DTC) system. The standard Particle Filter algorithm is presented at first, and the application of the Particle Filter algorithm in the high performance DTC system of PMSM is primarily discussed. Terminal voltages and stator currents measured are used to estimate the stator flux on line according to the PF algorithm at real time, which can provide flux feedback for DTC system. At last, a simulated experiment is done. The simulation results indicate that the proposed algorithm can achieve high estimation precision, and the system has good properties.更多还原