Modeling a Domestic All-Electric Air-Water Heat-Pump System for Discrete-Time Simulations

Heat pumps are expected to significantly affect future distribution grids, necessitating their inclusion in future distribution grid research. This research will include discrete-time simulations, which will require time-step adaptable and detailed models of heat pumps. These models exist, but often with simplified heat demands and constant or inflexible coefficients of performance, making them less accurate. In this work, a heat pump model is developed for discrete-time simulations with varying weather conditions, operating set-points, and an accurate coefficient of performance. The model produces realistic yearly heat demands, coefficients of performance, and power consumption.