電力需給バランスからみた太陽光発電システム出力抑制制御に関する一検討

摘要

In the future electric power system including the high penetration photovoltaic power generation system (PVS), the power supply of utility generators must be reduced significantly when the weather condition is very fine over the nation wide. In such the situation, novel control scheme of high penetration PVS as well as controllable electric appl iances would be required to maintain the stable power system operation. In our precedence study, we have introduced a power output control method of PVS contributing to the load frequency control (LFC). According to the request from the system operator, the proposed method suppresses the PVS power output at a certain level relative to the maximum power. Then, if necessary, the proposed method adjusts the power output according to the frequency fluctuation. In this study, we discuss the needs for such the PVS control contributing to LFC in terms of economic operation of utility generators.%低炭素社会の実現のため，太陽光発電システム（PVS）の導入拡大が進められている．一方で，PVSの大量導入に伴い系統発電機からの供給割合は減少するにもかかわらず，電力需要自体の変動は変化しないため，LFC発電機容量の不足が懸念される．そこで筆者らは，LFCへ貢献するPVS出力抑制手法を提案している．