Abstract

Large capacity photovoltaic (PV) systems will be installed in future power systems. According to Japan's energy outlook, the target capacity of PV systems for 2030 is about 50GW. When the large volume PV systems are installed in a power system, the reverse power flow from PV systems may cause the surplus electric power. To utilize the surplus electric power without the reduction of PV power generation, operation of customer equipment such as heat pump water heater (HPWH) according to PV power generation is expected to be one of the solutions. In this paper, cooperative control method of customer equipment with the PV power generation is proposed, and the effectiveness of the proposed control is evaluated by simulation analyses.

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