永磁同步电机积分反步自适应控制

Integral Backstepping Adaptive Control of Permanent Magnet Synchronous Motor

针对外界干扰导致永磁同步电机(PMSM)固有参数发生变化的问题,将新型的智能控制理论引入到PMSM控制系统中,提出了一种新颖的带有积分环节的反步自适应法的控制方法。该控制器能够利用交轴电流动态抑制或消除参数的变化对系统的影响,基于Lyapunov稳定性原理设计被控系统的控制律和自适应律,并引入积分环节,增强被控系统的稳定性,缩短速度响应的时间。仿真试验证明,该控制器能够有效地抑制电机固有参数的变化对被控系统的影响,保证了系统的强鲁棒性和动静态性能。

In order to solve the problem that the inherent parameters of the permanent magnet synchronous motor(PMSM)were changed due to external interference,a new intelligent control technology was introduced into the control system of PMSM,and a new control strategy based on the integral backstepping adaptive method was proposed.The controller could dynamically suppress and eliminate the influence of parameter changes on the system by using the cross axis current.Based on the Lyapunov stability principle,the control laws and the adaptive laws of the controlled system were designed,and the integral action was introduced to improve the stability and shorten the time of the speed response.The simulation experiments showed that the controller had strong robustness as well as good dynamic and static performance to suppress the influence of the change of the inherent parameters.