Title :
Extending standard H∞ controller to H∞ /sliding mode controller with an application to power system stabilisation
Author :
Lee, S.S. ; Park, J.K. ; Lee, J.J.
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
9/1/1999 12:00:00 AM
Abstract :
A new H∞/sliding mode controller under a worst-case scenario is described. The controller is designed to solve the problem associated with unmeasurable state variables in the traditional sliding-mode controller, and to improve the time-domain performance under a worst-case scenario. The control input, derived by Lyapunov´s second method, keeps the system stable. Proof of closed-loop stability is done by an additional form of a sliding surface and an estimation error
Keywords :
H∞ control; Lyapunov methods; closed loop systems; control system synthesis; power system stability; time-domain synthesis; variable structure systems; H∞ controller; H∞/sliding mode controller; Lyapunov second method; closed-loop stability; power system stabilisation; sliding surface; time-domain performance; unmeasurable state variables; worst-case scenario;
Journal_Title :
Control Theory and Applications, IEE Proceedings -
DOI :
10.1049/ip-cta:19990500
