Abstract:
Because control variable u(t) for fast valving is restricted by the stroke and velocity of valve, therefore, linear optimal control theory cannot effectively be used to s...Show MoreMetadata
Abstract:
Because control variable u(t) for fast valving is restricted by the stroke and velocity of valve, therefore, linear optimal control theory cannot effectively be used to solve the problem of fast valving. This paper recommends a new control approach for fast valving based on maximum principle, in which the limitation of control variable u(t) is considered. It can automatically distinguish and adapt the changes of fault condition and operation mode, and make the act for fast valving bring into full play. In addition, the control method given in this paper meets the need of discrete transient stability control. There is not singular solution in this control method. The results of calculation through three system show that this approach is correct.<>
Published in: Proceedings of TENCON '93. IEEE Region 10 International Conference on Computers, Communications and Automation
Date of Conference: 19-21 October 1993
Date Added to IEEE Xplore: 06 August 2002
Print ISBN:0-7803-1233-3
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1.
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2.
R. H. Park, "Fast Turbine Valving", IEEE Transaction on Power Apparatus and System, vol. PAS—92, 1065.
3.
W. R. Laehs, "A New Transient Stability Control", IEEE Transaction on Power System, vol. PWRS-2, no. 4, pp. 980, 1987.
4.
K. KoyanagI and T. Komukal, "A Study of Fast Vaiving as an Aid to Power System Transient Stability", IFAC, pp. 1, 1977.
5.
F. L. Lewis, Optimal Control, New York:John Wiley Sons, 1986.
