配电网固定串联补偿和并联补偿协同优化

In order to reduce the voltage deviation of the distribution network with weak network, large power supply radius, heavy load and improve the adapting ability for load fluctuation, a collaborative optimization method considering both fixed series compensation and shunt compensation with load fluctuation is proposed. Using the principle of bi-level optimization to build a reactive power optimization mathematical model which sets the maximization of load rate as the upper-level optimization target, and sets the minimization of voltage deviation, purchase cost of capacitor and network loss as the lower-level optimization target. The proposed upper-level and lower-level optimization models can be solved by single objective genetic algorithm and NSGA-II algorithm, respectively.The similation results of the real-world distribution network demonstrate the feasibility and effectiveness of the proposed method.