Research on Multi Units Coordinated Phase Advance Based on Filled Function Particle Swarm Optimization Algorithm

Aiming at the problems of reactive power surplus and main network voltage rise caused by light load operation period, this paper focuses on the reactive power distribution strategy of multi units coordinated leading phase operation. In order to maximize the overall safety margin of multi units leading phase and the similar safety margin of each unit, a multi units coordinated leading phase reactive power distribution model is established, and a filled function particle swarm optimization algorithm is designed. Firstly, a local minimum solution is obtained by using particle swarm optimization algorithm, and then the global optimal solution is obtained by constructing a filling function. Finally, the method is applied to a practical 220 kV district power grid to verify the feasibility of the model and method.