Abstract

This paper presents a robust tracking controller for the automatic voltage regulator (AVR) system, where both system uncertainties and external disturbances are taken into account. The proposed control scheme combines optimal feedback control with robust control. The parameter gains of the proposed controller have been selected based on Lyapunov theorem to ensure the stability of the closed-loop control system. Moreover, the parameters of the feedback control term are optimized using the Harris Hawks Optimization (HHO) algorithm. The performance of the proposed controller is compared with several Proportional Integral Derivative (PID) controllers optimized with different optimization algorithms. In addition, the fractional order PID (FOPID) controller is used for comparison. The validity of the proposed control scheme is illustrated through the simulation of the AVR system with three cases of simulation have been discussed.

摘要

本文提出了一种针对自动电压调节器（AVR）系统的鲁棒跟踪控制器，该系统同时考虑了系统不确定性和外部干扰。所提出的控制方案将最优反馈控制与鲁棒控制相结合。基于李雅普诺夫定理选择了所建议控制器的参数增益，以确保闭环控制系统的稳定性。此外，使用Harris Hawks优化（HHO）算法对反馈控制项的参数进行优化。将拟议控制器的性能与使用不同优化算法进行了优化的几个比例积分微分（PID）控制器进行了比较。另外，分数阶PID（FOPID）控制器用于比较。