逆潮流電力制約下における太陽光発電導入住宅での蓄電池の充放電運用手法の評価

抄録

High penetration of variable sources of renewable power generation will lead to various technical issues. In this study, we analyzed the effects of three operation algorithms of home storage battery for preventing increase in voltage in the local distribution networks and for leveling the power system load in the entire power system: Operation [A] using scheduled charged and discharged electricity, Operation [B] using scheduled stored electricity, and Operation [C] by original “purchase-minimum mode” and “grid-charge mode” under the uncertain forecast. Under the constraints of reverse power flow (≤ 1kW or = 0kW), additional restricted PV output and electric bill were reduced by 60% in Operation [C] compared to Operation [A]. These results show that the Operation [C] has high robustness against electricity demand forecast errors.