Multi-Building Systems Thermal and Energy Management via Geothermal Heat Pump

Abstract

With the growing concern on energy consumption, optimization and control of Geothermal Heat Pump (GHP) systems have become a research hotspot, which can help solve the problem of building energy conservation and shortage. The superiority of current control schemes of GHP systems is often reflected on an individual building with a separate GHP system. However, with the development of urban construction and the increase of population density, study on the district/area case in built-up areas deserves more attention. This paper focuses on typical cases of one GHP system serving multiple buildings and the community-level coordination of GHP systems. In particular, we present a high-order thermal dynamic model of radiator pipes combined with a commonly used second-order resistance-capacitance model for radiator heating/cooling. We design controllers to improve the efficiency of heat pumps and the ability to track a given nominal point of electrical power consumption in a distributed way, without sacrificing too much user comfort. Simulation results show that the proposed real-time distributed temperature control schemes are effective.