Research on Voltage Control of Distribution Network with Distributed Generation

A noteworthy phenomenon in nowadays distribution network is the increasing obvious trend that distributed generations (DGs) were integrated into the distribution network. The problems arising out of it, such as the voltage limit violation of point of common coupling (PCC), low capacity of active power consumption of DGs and high network loss of distribution network, always happen. It is extremely urgent to regulate the bus voltage for distribution network with DGs. This paper analyzed the influence of DGs integrated into the distribution network, and designed the voltage control idea of DGs integrated into the distribution network. The voltage control model considered minimum voltage deviation of PCC, minimum network loss and maximum consumption of DGs. The lightning flash algorithm (LFA) was adopted to solve the multi-objective model. Finally, the results of case study on improved IEEE33 bus system demonstrate the rationality of the proposed mathematical model and the validity of its solution algorithm.