【摘要】 文章基于非线性跟踪微分器、非线性度变换以及ＰＩＤ校正的思想，构造了一种新的非线性ＰＩＤ控制结构。该方法解决了一般非线性ＰＩＤ控制器参数整定的难题，结构简单，易于实现，鲁棒性强，又克服了由于常规ＰＩＤ受模型线性化的限制而使稳定范围变小，微分信号提取困难等缺陷。数值仿真结果表明，该非线性ＰＩＤ控制器控制品质好，有利于提高电力系统的稳定性。更多还原

【Abstract】 This paper proposes a new nonlinear PID model of valve controller based on nonlinear tracking-differentiator,nonlinear norm and PID adjustor. The new controller is as simple and easy to realize as the linear PID controller, and exists better response and robustness than that in linear PID controller. Digital simulation result indicates that the new nonlinear controller is satisfied for improvement of power system stability.更多还原