AN INFEASIBLE INTERIOR-POINT ALGORITHM FOR OPTIMAL POWER-FLOW PROBLEMS

This paper deals with the application of an infeasible interior point method to optimal power flow problems. Besides discussing the problem formulation, the paper offers a detailed description of the infeasible interior point algorithm; it also addresses some important implementa tion issues such as the determination of the barrier parameter, the ch oice of the initial point, and the efficient solution of the optimalit y-condition equations by sparse matrix techniques. Some suggestions ar e proposed that significantly improve the performance of the algorithm . Computational results on large-scale power systems have shown that t he algorithm is fast and robust, suitable to real-time applications. ( C) 1996 Elsevier Science S.A.