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在误差信号上进行幂指数变换的非线性度变换在许多应用中有利于提高控制系统的控制品质 .进一步对其描述函数特性进行了分析 ,并利用奈奎斯特判据对系统添加非线性度变换后的稳定性进行了判断 .结果表明 ,利用非线性度变换不仅可有效地使部分不稳定系统变为稳定 ,而且普遍地提高了控制系统的控制品质 ,从理论上验证了非线性度变换在部分控制系统中的有效性 ,为非线性度变换的具体设计提供了依据
In many applications, the non-linearity transform of exponentiation on the error signal is helpful to improve the control quality of the control system.Furthermore, the descriptive function is analyzed and Nyquist criterion is used to add non-linearity to the system The results show that the non-linearity transform can not only stabilize some unstable systems effectively, but also generally improve the control quality of the control system. The nonlinearity transformation is verified theoretically The validity in some control systems provides the basis for the concrete design of nonlinearity transformation