基于自抗扰控制的交联电缆悬垂控制系统

Suspension control system for XLPE cables based on active disturbance rejection controller

交联悬垂控制系统是一个非线性、时变、强耦合多干扰的复杂控制系统,为提高悬垂控制系统的抗干扰能力和鲁棒性。提出一种基于自抗扰的悬垂控制策略。文中分别针对下牵引交流异步电机的速度环、电流环以及磁链还进行自抗扰控制器的设计,通过所设计的自抗扰控制器有效地提高了系统的悬垂控制精度。考虑到悬垂控制系统是一个非线性时延系统,时延的存在一定程度上降低了系统的控制性能。本文将史密斯预估技术引入到自抗扰控制器的设计中,设计了一种基于史密斯预估器的输出预估自抗扰控制器,有效地降低了时延的影响,提高了系统的鲁棒性和抗干扰性能。文中最后给出了仿真分析,仿真结果验证了所设计的复合控制器的有效性。

Cross-linked drape control system is a nonlinear, time-varying, strong coupling and multi disturbance complex control system. In order to improve the anti-interference ability and robustness of the suspension control system, this paper puts forward a suspension control strategy based on ADRC. The ADRC is designed for the speed loop, current loop and flux linkage of the caterpillar AC asynchronous motor, the designed ADRC effectively improves the suspension control accuracy of the system. Considering the existence of time delay, the control performance of the system is reduced to a certain extent, the Smith predictor technology is introduced into the design of ADRC. An output predictive ADRC based on smith predictor is designed, which effectively reduces the influence of time delay and improves the robustness and anti-interference performance of the system. Finally, the simulation analysis is given, and the results verify the effectiveness of the designed composite controller.