再生可能エネルギー電源大量連系時における業務用空調機電力制御による系統周波数変動抑制効果の分析

摘要

Large integration of intermittent renewable energy generation causes an imbalance between power supply and demand. This imbalance affects the system frequency fluctuation. To solve this problem, more regulation/ramping services from resources can respond fast will be required. This study explores the potential for fast demand response to provide these ancillary services. Air conditioners in the commercial sector are one of the potential resources for demand side controllable load. This paper presents a model of air conditioners installed in retails for load frequency control. This model is based on a current demand control specification. We estimate controllable capacity of air conditioners for commercial sector in a power system. The effectiveness of this control method is evaluated by numerical examples of the IEEJ model power system with large fluctuation of wind and PV system output at middle season when thermal power generation output is decreased.%中間期の特定の1日を対象とし，ピークカット対応を想定したDR運転仕様を持つ業務用空調機を周波数調整に用いての系統周波数シミュレーションを行った.その結果,可制御容量は十分存在するがLFC信号に対して空調機が応答しない事が起こり，十分な系統周波数抑制効果を得られないことが示された.この問题の解決には通信,制御設計を検討する必要があり，今後の課題である.