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High-power bidirectional AC-DC integrated power supply unit

A power supply device, AC and DC technology, applied in the direction of output power conversion device, AC power input conversion to DC power output, electrical components, etc., can solve the problems of increasing test costs, reduce purchase costs, low self-loss, save The effect of cost of use

Active Publication Date: 2019-08-30
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional power supplies are generally divided into two types: DC voltage source device and AC voltage source device. If the test needs both DC power supply and AC power supply, you need to purchase the above two sets of devices and use them separately, which increases the test cost.

Method used

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  • High-power bidirectional AC-DC integrated power supply unit
  • High-power bidirectional AC-DC integrated power supply unit

Examples

Experimental program
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Effect test

Embodiment

[0024] Embodiment: a kind of high-power bidirectional AC-DC integrated power supply device, such as Figure 1-4 As shown, including the power input terminal 1, the power input terminal 1 is connected to the LCL filter 2, the LCL filter 2 is connected to the first three-phase bidirectional half-bridge circuit 3, and the first three-phase bidirectional half-bridge circuit 3 is connected to the second three-phase The bidirectional half-bridge circuit 4 , the second three-phase bidirectional half-bridge circuit 4 is connected with an LC filter 5 , and the LC filter 5 is connected with a power supply output terminal 6 .

[0025] The first three-phase bidirectional half-bridge circuit 3 includes three identical bidirectional single-phase half-bridge circuits A, B and C; the bidirectional single-phase half-bridge circuit A includes an IBGT module T1_A, an IBGT module T2_A, and an IBGT module T3_A and IBGT module T4_A, diode D1 and diode D2; the e-level of the IBGT module T1_A is conn...

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PUM

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Abstract

A high-power bi-directional AC / DC integrated power supply device comprises a power supply input end, wherein the power supply input end is connected with an LCL filter, the LCL filter is connected with a first three-phase bi-directional half-bridge circuit, the first three-phase bi-directional half-bridge circuit is connected with a second three-phase bi-directional half-bridge circuit, the secondthree-phase bi-directional half-bridge circuit is connected with an LC filter, and the LC filter is connected with a power supply output end. The contactor K6 is connected to the middle terminal 01 of the current output, and the current output DC- end is connected with a contactor K7, and the contactor K6 and the contactor K7 are connected with the N terminal of the power output. The inductance L8 is connected with a contactor K4 and a contactor K5. The contactor K4 is connected with a power output terminal C, and the contactor K5 is connected with a power output terminal A. The invention cansimultaneously realize two functions of an adjustable direct current power supply and an adjustable alternating current power supply, can meet different test requirements, and selects a direct current source mode or an alternating current source mode according to the requirements.

Description

technical field [0001] The invention relates to a power supply device, in particular to a high-power bidirectional AC-DC integrated power supply device. Background technique [0002] With the rapid development of new energy industries, such as wind power generation, photovoltaic power generation, new energy vehicles, etc., high-power power electronic equipment is more and more widely used. These power electronic Electrical and power testing. According to the energy conversion requirements of the equipment, it is divided into two types: adjustable DC power supply and adjustable AC power supply. Traditional power supplies are generally divided into two types: DC voltage source device and AC voltage source device. If the test needs both DC power supply and AC power supply, you need to purchase the above two sets of devices and use them separately, which increases the test cost. Contents of the invention [0003] The object of the present invention is to provide a high-power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/797H02M1/10
Inventor 陈晓
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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