Design and Implementation of Photovoltaic Inverter Monitoring Terminal Based on Bluetooth 5.1

In order to solve the problems of photovoltaic reverse overload, heavy load and power quality in the low-voltage station area, and realize the safe power supply and the safe operation of the equipment in the station area, it is necessary to monitor the stable operation of the photovoltaic inverter. This paper designs a photovoltaic inverter monitoring terminal based on Bluetooth 5.1. The device adopts modular design, which is mainly composed of MCU main control module, power module, three-phase voltage and current sampling module, communication module, storage module, security core module and indicator module.Then a software program is designed to realize the functions of acquisition, monitoring, control, fault alarm and communication. Finally, the Bluetooth maintenance function is tested.The scheme not only improves the management efficiency of photovoltaic power plant, but also provides a powerful technical platform for the stable operation of solar photovoltaic power plant and the analysis of photovoltaic power generation data, and also provides a foundation for smart grid dispatching.