Achievements
Through the equipment available at SYSLAB (part of PowerLabDK at DTU), the DAMS4IRMA user group managed first to develop a detailed reference nonlinear model of the air-to-water heat pump, as well as that of the coupled hot water tank, for domestic applications. Then, many different control-oriented models have been developed and tuned, as a function of different parameters (external temperature, humidity, power frequency, inlet water temperature), of different complexity. Those models have then been used inside a suitable optimisation problem, whose aim is to satisfy user’s comfort constraints and system physical constraints, while optimising a cost function over a finite horizon, with variable electricity profile and weather conditions. The tests were made controlling the indoor temperature in a real brick house, under real operating conditions, with a control structure based on a linear time-varying MPC developed on purpose.