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High-voltage DC power supply system

A high-voltage DC power supply and DC power technology, applied in the power supply field, can solve the problems of occupation, large area, large volume, etc., and achieve the effects of wide application scenarios, short power distribution paths, and small size

Inactive Publication Date: 2017-06-13
EMERSON NETWORK POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional power supply system includes AC cabinets, rectifier cabinets, DC cabinets and head cabinets, which are large in size and occupy a large area

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The high-voltage DC power supply system provided by Embodiment 1 of the present invention is as follows figure 1 As shown, it includes: an AC unit 101 for inputting two AC currents Vin1 and Vin2, a rectification unit 102 and a DC unit 103 including a first rectification module group and a second rectification module group; wherein:

[0023] The first rectification module group includes n rectification modules H1, H2...Hn, and the n rectification modules output direct current to the first direct current bus, n≥1;

[0024] The second rectification module group includes m rectification modules Hn+1, Hn+2...Hn+m, and the m rectification modules output direct current to the second direct current bus, m≥1;

[0025] The first DC bus and the second DC bus are the same DC bus BUS.

[0026] Specifically, the AC unit 101 includes two AC input switches Q11, Q12 corresponding to the two AC currents Vin1, Vin2 one-to-one, and n AC output switches Q21, Q22...Q2n, and n rectifier modu...

Embodiment 2

[0040] The high-voltage DC power supply system provided by Embodiment 2 of the present invention is as follows: figure 2 As shown, it includes: an AC unit 201 for inputting two ACs Vin1 and Vin2, a rectifier unit 202 and a DC unit 203 including a first rectifier module group and a second rectifier module group; wherein:

[0041] The first rectifier module group includes n rectifier modules H1, H2...Hn, and the n rectifier modules output direct current to the first direct current bus BUS 1, where n≥1;

[0042] The second rectification module group includes m rectification modules Hn+1, Hn+2...Hn+m, and the m rectification modules output direct current to the second direct current bus BUS 2, m≥1;

[0043] compared to figure 1 The main difference of the high-voltage DC power supply system shown is that the first DC bus BUS 1 and the second DC bus BUS 2 are different DC buses.

[0044]Preferably, in addition to the rectification module group, the rectification unit 202 also inc...

Embodiment 3

[0050] The high-voltage DC power supply system provided by Embodiment 3 of the present invention is as follows image 3 As shown, it includes: an AC unit 301 for inputting two AC powers Vin1 and Vin2, a rectification unit 302 and a DC unit 303 including a first rectification module group and a second rectification module group.

[0051] compared to figure 2 The main difference of the high-voltage DC power supply system shown is the specific implementation of the AC unit 301 .

[0052] Specifically, the AC unit 301 includes two AC input switches Q11, Q12 corresponding to the two AC currents Vin1, Vin2 one-to-one, and n AC output switches Q21, Q22...Q2n, and n rectifier modules corresponding one-to-one. m rectifier modules correspond to m AC output switches Q2n+1, Q2n+2...Q2n+m, where:

[0053] The first terminals of the two AC input switches Q11 and Q12 serve as the input terminals of the two AC currents Vin1 and Vin2; among the two AC input switches Q11 and Q12, the second ...

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Abstract

The invention discloses a high-voltage DC power supply system. The high-voltage DC power supply system comprises an AC unit, rectification units of at least one rectification module group and a DC unit, wherein the AC unit inputs at least one path of alternating current and is used for allocating one path of alternating current to the rectification module with regard to each rectification unit in each rectification module group in the rectification unit, the alternating current input from the rectification module in the same rectification module group is the same path of alternating current, each rectification module in each rectification module group in the rectification unit is used for converting the input alternating current to a direct current and then outputting the direct current to a DC bus, the rectification modules in the same rectification module group outputs the direct currents into the same DC bus, and the DC unit is used for allocating and inputting the direct current on the DC bus to each load. The high-voltage DC power supply system provided by the invention is relatively small in volume.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to a high-voltage direct current power supply system. Background technique [0002] With the continuous development of technology, the miniaturization of power system has become the future development trend. The traditional power supply system includes AC cabinets, rectifier cabinets, DC cabinets and column cabinets, which are large in size and occupy a large area. Contents of the invention [0003] Embodiments of the present invention provide a high-voltage direct current power supply system with small volume and low power loss. [0004] An embodiment of the present invention provides a high-voltage direct current power supply system, including: an alternating current unit for inputting at least one alternating current, a rectification unit including at least one rectification module group, and a direct current unit; wherein: [0005] The AC unit is configured to allocat...

Claims

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Application Information

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IPC IPC(8): H02J7/34
Inventor 吴劲芝
Owner EMERSON NETWORK POWER CO LTD
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