Experimental Verification of Tie Line Power Flow Control of Microgrid by Use of Heat Pump Air Conditioning System and Energy Storage System

AbstractIn order to compensate power fluctuations caused by loads and renewable energy sources, the concept of controllable load has been proposed. In this paper, the use of heat pump air conditioning system (HPAC) as a controllable load is focused. To verify the advantage produced by control of HPAC's power consumption as a controllable load, experiments are conducted using model microgrid system with real machines. The results of the experiments showed that the control of HPAC's power consumption can contribute to power fluctuation compensation control in the microgrid. The energy capacity of energy storage system that is necessary to suppress the power fluctuation was analyzed and it has been clarified that the necessary energy capacity can be reduced by control of HPAC.