On the gain margin improvement using dynamic compensation based on generalized sampled-data hold functions

Wei-Yong Yan, B.D.O. Anderson, R.R. Bitmead
1994 IEEE Transactions on Automatic Control  
This paper shows that the use of dynamic compensation based on generalized sampled-data hold hmdious (GSHF) can arbitrarily improve the gain margin for continuous-time mnminimum phase linear systems The GSHF compensator is a particular periodic digital contrdler mu& simpler than that used in [4]. The effect of sampling period on the gain margin is analyzed. Furthermore, it is proved that under a mild condition, the gain margin improvement can be achieved without forcing the sampling period
more » ... . An important advantage of periodic compensation over LTI compensation is found to be the capab'ity of
doi:10.1109/9.333791 fatcat:p3udmzuyorc5fh4txtkviwo4s4