太陽光発電大量導入時における小容量蓄電池群を用いた配電系統電圧制御手法

抄録

Renewable Energy Sources (RES) and Smart Grid are being focused on recently in Japan to reduce greenhouse gas emissions and energy consumption. In particular, a large amount of Photovoltaic generations (PV) will be introduced into Japanese distribution system in the near future. However, output of PV depends on weather conditions and climate condition may change rapidly or randomly. As a result, voltage in distribution system with many PVs will fluctuate and could not be manage stable in future. In contrast, a battery is effective device to control voltage and will increase in power system as an Electric vehicle and a household battery. Smart Grid is likely to have an ability to control these batteries to manage voltage effectively in the future. In this paper, authors proposed a control method of SVR and batteries of consumers distributed in power system for voltage regulation. An advantage of proposed method is that it is possible to control voltage using small batteries in the network and a benefit of users from battery is not hindered. The effectiveness of proposed method is confirmed by numerical simulation.