Abstract
Abstract This paper presents the study of automatic generation control (AGC) of two area interconnected power system after deregulation, considering a thyristor controlled phase shifter (TCPS) in series with the tie-line. It is possible to minimize the system frequency and tie-power oscillations by controlling the phase angle of TCPS which is expected to provide a new ancillary service for the future power system. Effect of TCPS is examined for three different cases, i.e. (1) unilateral contract, (2) bilateral contract and (3) contract violation. Analysis reveals that a TCPS is quite capable of suppressing the frequency and tie-power oscillations effectively as compared to that obtained without TCPS.
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