基于比例谐振的永磁同步电机直接转矩控制  

Research on PMSM-SVM-DTC System Based on the Proportional Resonant Control

作　　者：徐培嘉 张杨[2] XU Pei-jia;ZHANG Yang(National Energy Xuzhou Power Generation Co.,Ltd.,Xuzhou 221400,China;不详)

机构地区：[1]国能徐州发电有限公司,江苏徐州221400 [2]中国矿业大学,江苏徐州221116

出　　处：《电力电子技术》2024年第5期26-30,共5页Power Electronics

基　　金：江苏省碳达峰碳中和科技创新专项基金(BE2022003)。

摘　　要：针对常规直接转矩控制(DTC)中转矩和磁链控制存在较大偏差的现象,从永磁同步电机(PMSM)数学模型的分析出发,在有效估算定子磁链和转矩的基础上,提出了基于空间矢量脉宽调制(SVM)的DTC策略;同时,利用比例谐振(PR)控制器能在静止坐标系下实现对交流信号无静差跟踪这一特性,将其引入控制系统可克服比例积分(PI)控制的不足。最终设计了一套基于双PR控制器的PMSM-SVM-DTC系统。通过与常规DTC仿真对比分析,证明该方案能有效减小磁链和转矩脉动,鲁棒性强,具有良好的动态响应特性。并进一步利用实验验证了方案的可行性和有效性,具备工程应用价值。For the conventional direct torque control(DTC)torque and flux control of the phenomenon,there is a large deviation,from the analysis of the mathematical model of permanent magnet synchronous motor(PMSM),effective to estimate the stator flux and torque on the basis of the DTC strategy based on space vector pulse width modulation(SVM).Meanwhile,proportional resonant(PR)controller can realize no static error adjustment tracking when the input signal is AC signal in the stationary coordinate system,introduction into the control system can overcome the deficiency of the proportional integral(PI)control.The final design of a control system based on dual-PR controller PMSM-SVM-DTC.Proved through the analysis of simulation compared with the conventional DTC,the program can maintain a fast dynamic response characteristics as well as good robustness,but also effectively reduces the flux and torque ripple,and further experiments to verify the feasibility and effectiveness of the program,with engineering applications.

关 键 词：永磁同步电机 直接转矩控制 比例谐振控制器 

分 类 号：TM315[电气工程—电机]