An augmented automatic choosing control of observer type for nonlinear systems with linear measurement and its application to power systems |
| |
Authors: | Hitoshi Takata Tomohiro Hachino Toshinori Nawata |
| |
Affiliation: | 1. Department of Electrical and Electronics Engineering, Kagoshima University, 1-21-40, Korimoto, Kagoshima 890-0065, Japan;2. Department of Information and Computer Sciences, Kumamoto National College of Technology, 2659-2 Suya, Koshi, Kumamoto 861-1102, Japan |
| |
Abstract: | This paper deals with a feedback control using automatic choosing functions and the observer-control design procedure for nonlinear systems with linear measurement. A constant term which arises from linearization of a nonlinear equation is treated as a coefficient of a stable zero dynamics. A given nonlinear system is linearized piecewise so as to be able to design the linear optimal controllers with the linear observers. By the automatic choosing functions, these controllers are smoothly united into a single nonlinear feedback controller, which is called an augmented automatic choosing control of observer type. This controller is applied to a transient stability of power systems, whose simulation results show that the new controller enables to expand the stable region well. Copyright © 2009 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc. |
| |
Keywords: | nonlinear control augmented automatic choosing control observer overshoot zero dynamics power system |
|
|