POWER SUPPLY SYSTEM AND ENERGY STORAGE SYSTEM

摘要

A power supply system to provide auxiliary power output comprising a first energy storage device, a first inverter coupled to the first energy storage device, a first transformer, a first diode and a capacitor. The first inverter includes a first switch and second switch in series. The first transformer transforms high voltage from the first energy storage device to the low voltage output from auxiliary power output terminal, and includes the primary winding and auxiliary winding. The primary winding is connected to the first energy storage device and the junction of the first and second switch, and the homonymous terminal of the secondary winding is connected to the auxiliary power output through the first diode, with the synonymous terminal connected to the earth. One end of the first capacitor is connected to the first diode cathode and the other end is connected to the earth.

主权项

1. A power supply system, comprising:
an auxiliary power supply output terminal for providing an auxiliary power supply; a first energy storage device; a first converter comprising a first switch and a second switch which are series-connected, wherein the first converter is coupled to the first energy storage device; a first transformer that transforms a high voltage from the first energy storage device into a low voltage output from the auxiliary power supply output terminal and comprising a primary winding and a secondary winding, wherein the primary winding of the first transformer is connected between the first energy storage device and a connecting point of the first and the second switches, and a dotted terminal of the secondary winding of the first transformer is connected to the auxiliary power supply output terminal via a first diode and an opposite terminal thereof is grounded; and a first capacitor, wherein one terminal of the first capacitor is connected to a negative electrode of the first diode and the other terminal thereof is grounded.