论文部分内容阅读
许多实际系统可以表示为不连续非线性块状结构模型,其不连续非线性部分常采用符号函数参数化,该处理方法适用于递推参数辨识,但自适应控制器的设计较为困难.鉴于此,针对一类含有不连续非线性环节的Hammerstein模型,采用一系列线性分段函数参数化不连续非线性环节,提出自校正控制方法.根据线性分段函数的逆函数特性,求解自适应控制律.理论分析证明了闭环系统的稳定性,仿真结果验证了所提出方法的有效性.
Many practical systems can be expressed as discontinuous nonlinear block structure models, whose non-continuous non-linear part is often parameterized using symbolic functions. This method is suitable for recursive parameter identification, but the design of adaptive controller is difficult. , Aiming at a class of Hammerstein model with discontinuous nonlinearity, a series of linear piecewise functions are used to parameterize the discontinuous nonlinearity and a self-tuning control method is proposed. According to the inverse function of linear piecewise function, the adaptive control law The theoretical analysis proves the stability of the closed - loop system, and the simulation results verify the effectiveness of the proposed method.