Novel Aggregate Control Model of Air Conditioning Loads for Fast Regulation Service

Abstract: As a significant demand response resource, air conditioning (AC) loads can respond to control signals quickly by on–off switches to provide fast regulation service. A uniform-time state bin aggregate model (UTIM) with higher accuracy is introduced and the corresponding modelling constraints are first presented. Then, based on the UTIM, a novel aggregate control model that takes into account both the external control signals and the time delay of the AC compressor is proposed to follow the dynamic collective behaviour of ACs, which will make the UTIM more practical and accurate. To relieve the communication burden and reduce the number of switching times, a generalised control method is also proposed to control ACs through the global signal. The simulation results show that considering the time delay of the compressor, the novel aggregate control model can track the collective performances of ACs more closely. In addition, the proposed control method needs fewer control signals and switch times.