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将滑模变结构控制具有对摄动的完全自适应性与反馈线性化理论和最优控制理论结合起来,针对励磁系统,提出了一种基于反馈线性化最优的滑模变结构控制方法,给出了控制器的设计过程,避免了通常设计滑模变结构控制器时参数选取的盲目性,保证系统运行在较佳状态,且按指数趋近律设计的滑模变结构控制器不易产生抖动.仿真结果表明,这种方法能够充分发挥滑模变结构控制的鲁棒性优点,对电力系统具有较好的稳定作用.
The sliding mode variable structure control has full adaptability to perturbation combined with feedback linearization theory and optimal control theory. A new sliding mode variable structure control method based on feedback linearization is proposed for excitation system. The design process of the controller is given, which avoids the blindness of parameter selection when the sliding mode variable structure controller is usually designed, and ensures the system running in a better condition. The sliding mode variable structure controller designed by the exponential approach law is not easy to produce Jitter.The simulation results show that this method can give full play to the robustness of sliding mode variable structure control and has a good stabilizing effect on the power system.