Abstract
As variable renewable resources such as solar photovoltaic and wind power provide an increasing portion of electricity to the grid, new forms of demand response are being developed with capabilities of reserve provision and frequency control. Thermostatically controlled loads such as air-conditioners are suitable to control frequency deviation and imbalance of power systems. Power consumption of residential air-conditioners depends on indoor temperature and its temperature setting. This paper proposes a simple model based on measured dynamic characteristics of residential air-conditioners by changed indoor temperature setting in an experimental smart house located in Tokyo. The power consumption model has three sections, rising phase, decline phase and stable phase, categorized by passed time. There are dozens power consumption differences [Wh] every 30 minutes after start up between measured value and model. Finally, this study is intended to evaluate load adjustment capability of air-conditioners.
