Title :
Multivariable robust power system stabiliser design based on H∞
Author :
Bouhamida, M. ; Denai, M.A. ; Ahed, L.M.
Author_Institution :
Fac. of Electr. Eng., Univ. of Sci. & Technol., Oran, Algeria
Abstract :
This paper deals with the design and evaluation of a H∞ based PSS using the state space approach. H∞ design method leads to a fixed-structure and fixed-parameter robust controller. An essential prerequisite in the synthesis of H∞ is to obtain a nominal linear system model. Uncertainties in the model are taken into account in the specification of the cost-function weights. The effectiveness of the proposed PSS is demonstrated under different operating regimes. A comparative study of the proposed PSS with a conventional PSS such as PI and optimal state feedback controllers has been performed and the superiority of the H∞ based PSS in improving the transient stability of the power generator is demonstrated in simulation environment
Keywords :
H∞ control; control system analysis; control system synthesis; multivariable control systems; power system control; power system transient stability; robust control; state-space methods; H∞ PSS; control design; control simulation; cost-function weights specification; fixed-structure fixed-parameter robust controller; multivariable robust power system stabiliser design; nominal linear system model; operating regimes; state space approach; transient stability improvement; Control system synthesis; Design methodology; Linear systems; Power system modeling; Power systems; Robust control; Robustness; State feedback; State-space methods; Uncertainty;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.885431
