... S. Pandya and S. K. Joshi, “A survey of optimal power flow methods”, Journal of Theoretical and Applied Information Technology, pp. 450-458, 2008. [5] Ghadir Radman and Reshma S Raje, Power ... Ängquist, M. Ghandhari and G. Andersson, “Use of UPFC for optimal power flow control”, IEEE Transactions on Power Delivery, Vol. 12, No. 4, pp. 1629-1634, October 1997. [8] K. S. Verma and H. O. ... where GiP and GiQ : generator real and reactive power at i-th bus, respectively; DiP and DiQ : load real and reactive power at i-th bus, respectively; ijG and ijB : transfer...