Sidhartha Panda and N. P. Padhy and R.N.Patel
Application of Genetic Algorithm for FACTSbased Controller Design
251 - 258
2007
1
2
International Journal of Electrical and Computer Engineering
https://publications.waset.org/pdf/1255
https://publications.waset.org/vol/2
World Academy of Science, Engineering and Technology
In this paper, genetic algorithm (GA) opmization technique is applied to design Flexible AC Transmission System (FACTS)based damping controllers. Two types of controller structures, namely a proportionalintegral (PI) and a leadlag (LL) are considered. The design problem of the proposed controllers is formulated as an optimization problem and GA is employed to search for optimal controller parameters. By minimizing the timedomain based objective function, in which the deviation in the oscillatory rotor speed of the generator is involved; stability performance of the system is improved. The proposed controllers are tested on a weakly connected power system subjected to different disturbances. The nonlinear simulation results are presented to show the effectiveness of the proposed controller and their ability to provide efficient damping of low frequency oscillations. It is also observed that the proposed SSSCbased controllers improve greatly the voltage profile of the system under severe disturbances. Further, the dynamic performances of both the PI and LL structured FACTScontroller are analyzed at different loading conditions and under various disturbance condition as well as under unbalanced fault conditions..
Open Science Index 2, 2007