Converter-based Power Supply System for Reducing a Contract Capacity

• US 20130154368A1
• Filed: 12/16/2011
• Published: 06/20/2013
• Est. Priority Date: 12/16/2011
• Status: Abandoned Application

• Current Assignee: Chung-Shan Institute of Science & Technology Armaments Bureau MND (Government of The Republic of China)
• Original Assignee: Chung-Shan Institute of Science & Technology Armaments Bureau MND (Government of The Republic of China)
• Inventors: Chang, Zen-Shan, Jen, Kuo-Kuang
• Application Number:
  US13/328,216
• Publication Number:
  US 20130154368A1
• Time in Patent Office: Days
• US Class Current: 307/26
• CPC Class Codes: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• CPC Class Codes: H02J 9/062 for AC powered loads

Abstract

Disclosed is a converter-based power supply system. The converter-based power supply system includes a power supply controller, a first meter connected to the power supply controller, an alternating current load connected to the first meter, a second meter connected to the power supply controller, a grid connected to the second meter, converters connected to the alternating current load and the grid, and an energy storage unit connected to the power supply controller and the converters.

Claims

1. A converter-based power supply system including:

a power supply controller;

a first meter connected to the power supply controller;

an alternating current load connected to the first meter;

a second meter connected to the power supply controller;

a grid connected to the second meter;

converters connected to the alternating current load and the grid; and

an energy storage unit connected to the power supply controller and the converters.

2. The converter-based power supply system according to claim 1, wherein the first meter is connected to power supply controller via an RS485 interface.

3. The converter-based power supply system according to claim 1, wherein the second meter is connected to the power supply controller via an RS485 interface.

4. The converter-based power supply system according to claim 1, wherein the converters are 5 W converters.

5. The converter-based power supply system according to claim 1, wherein the converters are connected to the alternating current load and the grid via an alternating current bus.

6. The converter-based power supply system according to claim 1, wherein each of the converters includes a full bridge converter, a gate driver, a microprocessor, a current sensor, a current feedback unit, a grid differential transformer, a zero-voltage cross-over sensor, a direct current transformer and a direct current feedback unit connected to one another.

7. The converter-based power supply system according to claim 6, wherein the full bridge converter includes at least four power switches.

8. The converter-based power supply system according to claim 7, wherein the power switches are IGBT power switches (TA+, TA−

, TB+, TB−

).

9. The converter-based power supply system according to claim 1, wherein the energy storage unit is 360V Li-H battery.

10. The converter-based power supply system according to claim 1, wherein the energy storage unit is connected to the power supply controller and the converters via a direct current bus.