Power supply system

Patent metadata

Field	Value
Publication number	US-11245259-B2
Application number	US-202017087831-A
Country	US
Kind code	B2
Filing date	Nov 3, 2020
Priority date	Aug 30, 2018
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

Disclosed is a power supply system, including: a high-voltage input power distribution cabinet, a high-low voltage conversion cabinet, and a low-voltage output and control cabinet, the high-low voltage conversion cabinet is provided with at least one high-voltage chamber provided with a high-voltage bus bar, at least one low-voltage chamber provided with a low-voltage bus bar, an insulating partition between the high-voltage chamber and the low-voltage chamber and a plurality of power supply modules; each of the power supply modules bridges the high-voltage and low-voltage chambers and includes a high-voltage cavity, a low-voltage cavity and an isolation unit, connecting terminals of the high-voltage and low-voltage cavities are respectively disposed corresponding to the high-voltage and low-voltage chambers and electrically connected to the high-voltage and low-voltage bus bars respectively, and the isolation unit is connected to one end of the high-voltage cavity and one end of the low-voltage cavity.

First claim

What is claimed is:

1. A power supply system, comprising: a high-voltage input power distribution cabinet, a high-low voltage conversion cabinet, and a low-voltage output and control cabinet, wherein,
the high-low voltage conversion cabinet is provided with at least one high-voltage chamber and at least one low-voltage chamber, the high-low voltage conversion cabinet is further provided with an insulating partition between the high-voltage chamber and the low-voltage chamber, the low-voltage chamber is provided with a low-voltage bus bar, and the high-voltage chamber is provided with a high-voltage bus bar;
the high-low voltage conversion cabinet is further provided with a plurality of power supply modules, and each of the power supply modules bridges the high-voltage chamber and the low-voltage chamber, the power supply module comprises a high-voltage cavity, a low-voltage cavity and an isolation unit, wherein a connecting terminal of the high-voltage cavity and a connecting terminal of the low-voltage cavity are respectively disposed corresponding to the high-voltage chamber and the low-voltage chamber and electrically connected to the high-voltage bus bar and the low-voltage bus bar respectively, and the isolation unit is connected to one end of the high-voltage cavity and one end of the low-voltage cavity.

2. The power supply system according to claim 1 , wherein, the power supply system comprises a plurality of the high-voltage chambers, a plurality of the low-voltage chambers, and a plurality of the insulating partitions, and the high-voltage chambers and the low-voltage chambers are alternately arranged in a vertical direction.

3. The power supply system according to claim 2 , wherein, the high-voltage input power distribution cabinet, the high-low voltage conversion cabinet, and the low-voltage output and control cabinet are sequentially arranged in a horizontal direction.

4. The power supply system according to claim 1 , wherein, the power supply system comprises a plurality of the high-voltage chambers, a plurality of the low-voltage chambers, and a plurality of the insulating partitions, and the high-voltage chambers and the low-voltage chambers are alternately arranged in a horizontal direction.

5. The power supply system according to claim 4 , wherein, the high-voltage input power distribution cabinet, the high-low voltage conversion cabinet, and the low-voltage output and control cabinet are sequentially arranged in a vertical direction.

6. The power supply system according to claim 4 , wherein, the high-voltage input power distribution cabinet is adjacent to the high-low voltage conversion cabinet in the horizontal direction, and the high-low voltage conversion cabinet is adjacent to the low-voltage output and control cabinet in a vertical direction.

7. The power supply system according to claim 1 , wherein, the low-voltage chamber is further provided with a low-voltage control line.

8. The power supply system according to claim 1 , wherein, the high-voltage input power distribution cabinet, the high-low voltage conversion cabinet, and the low-voltage output and control cabinet adopt a separately isolated cabinet body, respectively.

9. The power supply system according to claim 1 , the high-voltage input power distribution cabinet, the high-low voltage conversion cabinet, and the low-voltage output and control cabinet are disposed only in a cabinet body and are separated by a partition.

10. The power supply system according to claim 1 , wherein, the high-voltage cavity is provided with a high-voltage unit, and the low-voltage cavity is provided with an isolation transformer and a low-voltage unit.

11. The power supply system according to claim 1 , wherein, the isolation unit is provided with a fan.

12. The power supply system according to claim 11 , wherein, the isolation unit is provided with only one fan, which is disposed at a position corresponding to the low-voltage cavity in the isolation unit.

13. The power supply system according to claim 11 , wherein, the isolation unit is provided with two fans, which are respectively disposed at positions corresponding to the high-voltage cavity and the low-voltage cavity in the isolation unit.

14. The power supply system according to claim 13 , wherein, one of the fans disposed at the position corresponding to the high-voltage cavity in the isolation unit is provided with an arc protection mechanism.

15. The power supply system according to claim 1 , wherein, the connecting terminal of the high-voltage cavity is an AC input terminal, and the AC input terminals of the plurality of power supply modules are selectively connected in series through an input series bus bar disposed in the high-voltage cavity or in parallel through an input parallel bus bar disposed in the high-voltage cavity.

16. The power supply system according to claim 1 , wherein, the connecting terminal of the low-voltage cavity is a DC output terminal, and the DC output terminals of the plurality of power supply modules are selectively connected in series through an output series bus bar disposed in the low-voltage or in parallel through an output parallel bus bar disposed in the low-voltage cavity.

17. The power supply system according to claim 1 , wherein, the power supply module is provided with an AC input and a DC output.

Assignees

• Delta Electronics Inc

Inventors

• Lan Lin
• Zhang Weiqiang

Classifications

• H02J3/02 Primary

  using a single network for simultaneous distribution of AC power at different frequencies · CPC title

• H05K7/1492 Primary

  having electrical distribution arrangements, e.g. power supply or data communications · CPC title

• H02M3/003

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H02M3/33573

  Full-bridge at primary side of an isolation transformer · CPC title

• H02M1/0058

  by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero (using an auxiliary actively switched resonant commutation circuit connected to an intermediate DC voltage or between two push-pull branches of an inverter bridge H02M7/4811; in resonant inverters H02M7/4815; in inverters operating from a resonant DC source H02M7/4826) · CPC title