Abstract
In this research, we are developing a new system that can be connected in parallel with a home PV system. This time, the effectiveness of the cooperating system was demonstrated by actual verification. This system must not adversely affect existing systems. Therefore, we set a transition time at the start of power supply from the system and considered supplying a certain amount of power. As a result, power was successfully added. We are also studying the effects of the proposed system on PCS control.