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研究影响一般滑动模态变结构控制性能的因素,并给出了根据切换函数选择滑动模态系数、边界层厚度以发控制器增益系数的一般要求.针对一类含参数不确定性的非线性系统,采用新型增益调度变结构控制策略进行控制,以切换函数作为调度变量对滑动模态系数、边界层厚度以及控制器增益系数进行调度,以提高滑动模态变结构控制系统的控制性能,抑制颤振,降低控制能耗.仿真算例验证了所提出控制策略的有效性.
The factors which affect the control performance of general sliding mode variable structure are studied and the general requirements of sliding mode coefficient and boundary layer thickness for controller gain coefficient are given according to the switching function.Aiming at the nonlinearity of a class of parameters with uncertainties System, a new gain scheduling variable structure control strategy is used to control the sliding modal coefficient, the boundary layer thickness and the controller gain coefficient by using the switching function as a scheduling variable to improve the control performance of the sliding mode variable structure control system, and to suppress Flutter, reduce the control energy consumption.A simulation example verifies the effectiveness of the proposed control strategy.