Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2007.1078.1084ZebirateSoraya ChakerAbdelkader FeliachiAli 7200777The Unified Power Flow Controller (UPFC) is the most
comprehensive tool for real time control of alternative transmission systems.
It can be used to control the transmitted real and reactive power flows
through a transmission line. Different control techniques for the UPFC
system have been proposed. This present study investigates an efficient
and robust control method for the UPFC in order to improve the stability
of the power system, thus providing the security for the increased power
flow. It is now becoming clear that only the classical method based on
information processing tools issued from artificial intelligence may lead
to a new stage in the automatic control technology. With Artificial Neural
Networks (ANNs) issues such as uncertainty or unknown variations in plant
parameters and structure can be dealt with more effectively and hence
improving the robustness of the control system. The basic idea of a Neural
Network Generalized Predictive Controller (NNGPC) is to calculate a sequence
of future control signals in such a way that it minimizes a multistage
cost function defined over a prediction horizon. The NNGPC performances
are compared in terms of reference tracking, sensitivity to perturbations
and robustness against line transmission parameters variations.]]>Chau, K.W., C.L. Wu and Y.S. Li,200510485491Chau, K.W.,200738145149Edris, A., L. Gyugi, T. Riedman and D. Torgerson,1996606178Gyugyi, L.,1992139323331Lin, J.Y., C.T. Cheng and K.W. Chau,200651599612Ma, T.T.,200342326Nguyen, D. and B. Widrow,19901990Peri, A.M. and N.I. Petrovi,19991999pp: 537537Schoder, K., A. Hasanovic and A. Feliachi,20002521527Sen, K.K. and A.J.F. Keri,200318300306Sukumar, M.,200617461470Tuttas, C.,19991999pp: 110Xie, J.X., C.T. Cheng, K.W. Chau and Y.Z. Pei,200628364381Yu, Q., S.D. Round, L.E. Norum and T.M. Undeland,19961996Zebirate, S., A. Chaker and A. Feliachi,20041536541Zhengyu, H., N. Yinxin, C.M. Shen, F.F. Wu, C. Shousun and Z. Baolin,200015817824