A Design Method for Plug-and-Play Modules of Photovoltaic Generators

In this paper, we propose a novel method for designing PnP (plug-and-play)-type modules of photovoltaic (PV) generators. The proposed module comprises a PV and a compensator that controls the duty cycle of the inverter cancelling out the negative influence of the newly added PV on the entire power system. The design and implementation of the compensator only depend on the local information about the power-system component that is connected to the PV. Even though the proposed module can be constructed locally, the stability of the entire system integrated with the module is theoretically guaranteed. We demonstrate the effectiveness of the proposed method through an example of a nine-bus power system.