抄録
This research focuses on use of heat pump air-conditioning system (HPACS) as controllable load in microgrid to compensate short-term power fluctuation. A new designing method to determine control parameters for microgrid including HPACS power consumption control is proposed. The proposed method uses microgrid's transfer function and frequency spectrum of microgrid's power and heat demand fluctuation to calculate evaluation values of microgrid control. The search result of Pareto-optimal parameter combination shows that there is a trade-off between SOC fluctuation, stored heat fluctuation, and fluctuation suppression ability. A verification test of power fluctuation compensation using HPACS control is conducted using a microgrid testing facility. The results of experiment shows that power consumption control of HPACS can reduce SOC fluctuation of battery on a large scale. The trade-off relation between evaluation values that was found in parameter decision method was affirmed by the experiment.
