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为克服传统鲁棒控制算法的保守性,提出一种概率范式下评价参数不确定控制系统鲁棒性能的方法。该方法能以累积频率曲线的形式直观地对任意性能水平下不同控制系统的鲁棒性能进行比较;同时,针对机炉协调控制系统设计一种鲁棒反馈线性化控制器,并运用上述评价方法将其与传统的精确反馈线性化控制器的鲁棒性能进行对比。仿真结果显示鲁棒反馈线性化控制器具有更为优越的鲁棒性能,同时验证了所提出的控制系统鲁棒性能评价算法的有效性。
In order to overcome the conservativeness of the traditional robust control algorithm, a method to evaluate the robust performance of the uncertain parametric control system under probability paradigm is proposed. The method can directly compare the robust performance of different control systems with arbitrary performance level in the form of cumulative frequency curve. At the same time, a robust feedback linearization controller is designed for the coordinated control system of the boiler and the above evaluation method It is compared with the robust performance of the traditional accurate feedback linearization controller. The simulation results show that the robust feedback linearization controller has more superior robustness and validates the proposed robustness evaluation algorithm of the control system.