Title :
Variable structure control strategy to automatic generation control of interconnected reheat thermal system
Author :
Das, D. ; Kothari, M.L. ; Kothari, D.P. ; Nanda, J.
Author_Institution :
Indian Inst. of Technol., New Delhi, India
fDate :
11/1/1991 12:00:00 AM
Abstract :
The paper deals with the analysis of automatic generation control (AGC) of a two-area reheat thermal system considering a variable structure controller (VSC) based on the sliding mode concept. A systematic method is suggested for obtaining switching hyperplanes. Optimum gain settings of the variable structure controller are obtained, both in the unconstrained (neglecting generation rate) and the constrained (considering generation rate constraint) modes, using the integral squared error (ISE) technique. Investigation reveals that there is a significant improvement in system dynamic performance with a VSC over that with an integral controller. Moreover, the variable structure controller is found to be quite insensitive to wide variations of system parameters
Keywords :
power station control; power system interconnection; thermal power stations; variable structure systems; automatic generation control; dynamic performance; integral squared error; interconnected reheat thermal system; sliding mode; switching hyperplanes; thermal power station control; variable structure controller;
Journal_Title :
Control Theory and Applications, IEE Proceedings D
