自抗扰与改进ESO并联的永磁同步电机矢量控制

Vector Control of Permanent Magnet Synchronous Motor Based onAuto Disturbance Rejection and Improved ESO

为提高永磁同步电机的控制性能,设计了一种自抗扰控制器与改进ESO并联的永磁同步电机矢量控制系统。首先,利用光滑的非线性函数改进传统的ESO,提高其对信号的平滑处理能力,并将改进的ESO与ADRC并联,提高信号处理的准确率;然后,将系统的电磁转矩与负载误差、转速误差与时间积分主动补偿到电流环,提高系统的响应速度和抗干扰性;最后,利用乌鸦算法优化ADRC的参数,减少人工参数整定的复杂度。Simulink中的仿真结果表明,改进系统比ADRC和PI控制具有更好的鲁棒性和稳定性。

In order to improve the control performance of permanent magnet synchronous motor(PMSM),a vector control system with ADRC and improved ESO is designed.First of all,the traditional ESO is improved by using smooth nonlinear functions to improve its ability of signal smoothing.The improved ESO is paralleled with ADRC to improve the accuracy of signal processing.Then,the electromagnetic torque and load error,speed error and time integral of the system are actively compensated to the current loop to improve the response speed and anti-interference of the system.Finally,the crow algorithm is used to optimize the parameters of ADRC to reduce the complexity of manual parameter tuning.Simulation results in Simulink show that the improved system has better robustness and stability than ADRC and PI control.