基于新型积分自适应滑模控制策略的永磁同步电机控制

设计了一种永磁同步电机(PMSM)参数扰动和负载扰动的新型控制策略。通常PMSM控制是通过PI控制设计的,控制效果不佳,因此提出一种新型积分滑模控制(SMC)策略进行转速控制器设计。积分SMC具有较强的抗干扰性,不仅可以抑制控制系统的高频微分扰动,而且可以降低系统稳态误差,使控制更精确。设计趋近律函数对滑模控制器进行优化,使SMC参数自适应调节,提高系统响应速度。考虑到系统参数和负载扰动对控制性能的影响,将自抗扰环节引入SMC,提高了系统的抗扰性。最后通过仿真试验验证了控制系统良好的控制性能。

Permanent Magnet Synchronous Motor Control Based on New IntegralAdaptive Sliding Mode Control Strategy

A new control strategy for permanent magnet synchronous motor (PMSM) parameter disturbance and load disturbance was designed. The PMSM control was usually designed by PI control, but the control effect was not good. A new integral sliding mode control (SMC) strategy for the speed controller design was proposed. The integral SMC had strong antiinterference ability, which could not only suppress the highfrequency differential disturbance of the control system, but also reduce the system steadystate error and make the control more accurate. The sliding mode controller was optimized by designing the reaching law function in which the switching parameters of the SMC could be adjusted adaptively, and the system response speed was improved. Taking into account the influence of system parameters and load disturbance on control performance, the active disturbance rejection control was introduced into the SMC, which improved the immunity of the system. Finally, simulation experiments verified that the control performance of the control system was excellent.