비최소위상 시스템에서의 하향초과 보상법

초록

In nonminimun phase systems, right half plane zeros near the imaginary axis may cause severe transients, like undershoots, oscillations and time delay, in a step response. The purpose of this paper is to study compensation methods that reduces undershoots of the nonminimum phase plant using a feedforward compensator, although rising time will be increased at the price of that. Furthermore, we show the compensator desing method about a typical second order system on the step input, and we verify the usefulness of this method with computer simulation.