二阶被控对象 PDF 控制器设计的新途径

A New Method of a PDF Controller Design for Second Plants

介绍一种响应速度快、无超调、鲁棒性强、抗干扰性能好的控制策略——ＰＤＦ（Ｐｓｅｕｄｏ－Ｄｅｒｉｖａｔｉｖｅ－Ｆｅｅｄｂａｃｋ）控制，并提出一种设计ＰＤＦ控制器的新途径。数字仿真结果表明，同传统的Ｃａｓｃａｄｅ－Ｓｙｓｔｅｍ法（亦称Ｐｈｅｌａｎ法）和Ｓｉｎｇｌｅ－Ｓｙｓｔｅｍ（亦称陈留法）一样，在有功率元件输出功率限制的情况下，用这种新方法所设计的控制器能够使系统实现较好的响应性能。

For its characters of highly robust performance, high ability of disturbance rejection, no overshoot and fast response ability, a new control algorithm called PDF (Pseudo-Derivative-Feedback) is introduced in this paper. Also, a new method of a PDF controller design for second plants is presented. And it's as effective as Cascade-System approach (also called Phelan approach) and Single-System approach (also called Chen approach) when the saturation of the power amplifier's output is considered in control system design.