Dynamic reactive power optimization of distribution network based on variable step size beetle antennae search algorithm

Abstract

To solve the dynamic reactive power optimization problem in the distribution network, a novel optimization algorithm (variable step size beetle antennae search algorithm, VBAS) is introduced. Meanwhile, from the economic point of view, the minimum network loss and capacitor switching cost are taken as the objective functions, and the dynamic reactive power optimization model is established. In contrast with the majority of existing traditional algorithms that are intricate in process, the conducted algorithm is of less calculate and easier achieved. Besides, the variable step size strategy is introduced to improve optimization accuracy. The effectiveness of this algorithm is verified by simulation analysis on the IEEE 33- bus system, and the results show that VBAS obtains the optimum operation point and outperforms traditional algorithms significantly.