Optimal Reactive Power Dispatch Using Hybrid Loop-Genetic Based Algorithm

Reactive power dispatch problem is one of the important issues of the power system in the operation and control. The Optimal Reactive Power Dispatch Problem is the minimization of active power loss in the power system by varying different system control variables, i.e. generator bus voltages or its reactive power output, transformer taps setting, shunt Var compensator etc. The minimization of active power loss will consequently reduce production cost for the requirement of reactive power support. In this paper a new algorithm is presented which is motivated by a hybrid approach called as hybrid Loop-Genetic based algorithm (HLGBA). The hybrid Loop-GA based algorithm (HLGBA) uses the benefits from global search, i.e. the genetic algorithm with less evolution process (only for global search space) and then from local search for refining the solution with the limited computation and time. This algorithm solve ORPD problem more efficiently. This new algorithm verified on standard IEEE_14 bus system to analyze the computation, time and efficiency of algorithm.