Photovoltaic intelligent power supply

Abstract

A photovoltaic intelligent power supply, comprising a plurality of unit modules, and a communication unit () and a control unit (), wherein all the unit modules are connected to the control unit () and the communication unit (); each unit module comprises an input collection unit (), a data acquisition unit (), a boost unit (), an arc isolation unit () and an anti-PID unit (), wherein the input collection unit () is connected to a photovoltaic module; the data acquisition unit () is configured to acquire voltage and current state signals; the boost unit () is configured to perform interleaving chopping and operate in an MPPT mode; the arc isolation unit () is configured to receive instructions sent by the control unit () to execute opening and closing; and the anti-PID unit () is configured to receive instructions sent by the control unit () so as to generate proper DC voltages to be applied between a negative electrode of a cell panel and the ground. The photovoltaic intelligent power supply supports MPPT control, and can effectively detect an arc and start protection, can ensure normal operation of an inverter, and improve reliability of a power generation system.