시뮬레이션 기반 최적화 기법을 적용한 발전력 재분배알고리즘

This paper suggests the optimal generation dispatch algorithm for ensuring voltage stability margin considering high windenergy injection. Generally, with wind generation being installed into the power system, we would have to consider severalfactors such as the voltage stability margin because wind turbine generators are mostly induction machines. If the proportionof wind generation increases in the power system increases this would affect the overall stability of the system including thevoltage stability. This paper considers a specific system that is composed of two areas: area 1 and area 2. It is assumed thatgeneration cost in area 1 is relatively higher than that in area 2. From an economic point of view generation in area 1 shouldbe decreased, however, in the stability point of view the generation in area 2 should be decreased. Since the power systemis a nonlinear system, it is very difficult to find the optimal solution and the genetic algorithm is adopted to solve the objectivefunction that is composed of a cost function and a function concerned with voltage stability constraints. For the simulations,the New England system was selected. The algorithm is implemented and Python 2.5.