基于饱和补偿控制器的壁板结构振动控制

Vibration control of panel structure based on saturation compensator

引人具有良好非线性控制能力的EMCS(Extended Minimal Control Synthesis)算法进行壁板结构振动控制。为解决控制器输出饱和问题,基于波波夫准则设计含有饱和补偿控制器的SCMCS(Saturation Compensator Minimal Control Synthesis)控制策略,并进行稳定性证明。仿真及实验结果表明,该方法在多模态正弦复合随机扰动下,较EMCS算法鲁棒稳定性更好,尤其由积分器与sign函数引起的EMCS算法控制器输出饱和现象得到有效抑制。

Extended minimal control synthesis （EMCS ）,being of good ability of nonlinear control was used to suppress panel vibration.In order to solve the problem of its controller saturation,a control strategy of saturation compensator minimal control synthesis including adaptive compensation gain based on erf function was put forward.The stability of the control system was verified by Popov’ s criterion.The simulation and experimental results show that the method has better robustness compared with EMCS algorithm under multi-mode sine mixed broadband random disturbance. Especially,the saturation caused by integrator and sign function mutation can be suppressed effectively by the method.