抄録
In recent years, the number of connection of renewable energy sources (RESs) such as the photovoltaic generation (PV) and wind power generation is increasing to reduce the influence on the environment. The outputs of these RESs vary rapidly with the influences of the weather, conditions of location, etc. Therefore, the point voltages of distribution system are worried that the voltages vary drastically and the voltages may deviate from the proper range of voltage by the influence of RESs connected to the distribution system or diversification of loads. Moreover, it is apprehended about the adverse effect on the electric power quality such as voltage imbalance and harmonics. In this paper, the authors propose a cooperative voltage control method of a distribution system by the system voltage control equipments in consideration of reducing capacity of the static synchronous compensator (STATCOM). In order to verify the validity of the proposed method, the numerical calculations were carried out.
