A new decentralized voltage control method of smart grid via distributed generations

Abstract

This paper proposes a new decentralized voltage control approach for distribution system in order to deal with the intermittent fluctuations of the renewable energy resources. In this regard a systematic partitioning method which splits distribution networks' graph is presented. Furthermore, an adaptive Particle Swarm Optimization (PSO) algorithm is used to solve the voltage regulation problem in order to optimize the reactive power of the Distributed Generations (DGs) in the related partition. The proposed method is evaluated on the well-known PG&E 69-bus distribution system and the results are compared with another method based on Interior Point Algorithm (IPA) in both decentralized and centralized manner. These results demonstrate the ability and efficiency of the proposed method for online voltage profile control of smart grids.