PRACTICAL ASPECTS OF DISTRIBUTION AUTOMATION IN NORMAL AND EMERGENCY CONDITIONS

In this study, the practical aspects of the real-time analysis and con trol of distribution systems in normal and emergency conditions are pr esented. A load-flow algorithm based on loop currents, which is numeri cally more stable and would require a smaller number of iterations, is considered in distribution systems calculations. In order to obtain a n optimal solution within a reasonable time, the problem is decomposed into feeder reconfiguration and volt/vax optimization sub-problems an d uses an iterative process between these two subproblems. For feeder reconfiguration, an efficient procedure based on closed-loop resistive scheme which utilizes fast branch removal is proposed. For volt/var o ptimization, a procedure based on the gradient search is developed. Th e proposed software is devised for interaction with human operators wh ich will provide advice in real-time normal and emergency practices.