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Extended H controller applied to frequency control of high-power generation system

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3 Author(s)
S. B. Villas-Boas ; Chiba Univ., Japan ; T. Mita ; K. -Z. Liu

In this study, the extended H control of Mita, Kuriyama and Liu (1993) is applied to the frequency control of a multi-area high-power generation plant. More specifically, the plant is focused as a two area electric power generation system, with two generators, two loads and a tie-line connecting them. This problem is interesting because of the existence of a zero at s=0 in the multivariable plant that causes a constraint in defining its steady state. The paper discusses how to establish a suitable generalized plant's structure for such a problem in order to design a H optimized control system that is able to reject load step disturbances asymptotically, i.e., a controller having poles at s=0. As an example, 3 extended H controllers are designed and simulation results are shown. Some discussion is made about how to tune the controller from parameters of weighting functions of the generalized plant

Published in:

Decision and Control, 1996., Proceedings of the 35th IEEE Conference on  (Volume:1 )

Date of Conference:

11-13 Dec 1996