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Modular converter

A converter and modular technology, applied in the direction of converting AC power input to DC power output, electric solid-state devices, semiconductor devices, etc., can solve inconvenient assembly, disassembly and maintenance, unreasonable component layout, and converter module Bulkiness and other problems, to achieve the effect of improving space utilization, compact structure, and improving component layout

Pending Publication Date: 2018-04-24
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing IGBT converter modules are equipped with a support capacitor, which makes each converter module very bulky, extremely inconvenient to assemble, disassemble and maintain, and the layout of components is unreasonable, which affects electrical performance

Method used

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  • Modular converter
  • Modular converter

Examples

Experimental program
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Effect test

Embodiment

[0031] like figure 1 , figure 2 As shown, a modular converter is a vertical frame structure, including:

[0032] 2 IGBT modules 7, arranged longitudinally in the vertical frame; 2 radiators 1, respectively arranged on the surface of one side of the 2 IGBT modules 7; DC busbar assembly, placed vertically, including stacked positive DC busses The row 4 and the negative DC busbar 3 are arranged in the vertical frame side by side with the IGBT module 7; a plurality of absorption capacitors 6 are connected in parallel with the DC terminals of the IGBT module, and are evenly arranged on the surface of the DC busbar assembly; the AC busbar 8. The IGBT module 7 is connected to the surface of the IGBT module 7 on the side where the heat sink 1 is not provided.

[0033] Due to the large volume and large number of absorption capacitors 6, it is not easy to directly connect with the IGBT module pins. The design of the laminated busbar can solve this problem very well. The positive DC b...

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Abstract

The invention relates to a modular converter, which comprises a vertical frame; two IGBT modules longitudinally arranged in the vertical frame; two radiators arranged on the surfaces of one sides of the two IGBT modules respectively; a direct-current bus bar assembly composed of a positive direct-current bus bar and a negative direct-current bus bar, wherein the two direct-current bus bars are laminated and are transversely arranged in the vertical frame side by side together with the IGBT modules; an absorption capacitor arranged on the direct-current bus bars; and an alternating-current busbar connected with the IGBT modules and arranged on the surfaces of one sides, not provided with the radiators, of the IGBT modules. Compared with the prior art, the absorption capacitor is arranged on the laminated bus bars. Therefore, the adoption of multiple wires for connecting the wiring terminals of all electrical appliances is not required. The wiring is convenient, and the layout of elements is improved. The electrical performance is improved.

Description

technical field [0001] The invention relates to the technical field of power electronic converters, in particular to a modular converter. Background technique [0002] With the continuous improvement of the voltage level and current level of power devices in power electronic products, IEGT (Injection Enhanced Gate Transistor) devices have been widely used due to their superior performance. IEGT utilizes the "electron injection enhancement effect" to combine the advantages of both IGBT and GTO: low saturation voltage drop, wide safe operating area, low gate drive power and higher operating frequency. The device adopts a flat-plate crimping electrode lead-out structure, with high reliability and good heat dissipation effect, and the device has reached the level of 4.5KV / 1500A. [0003] With the development of AC drive technology, IGBT converter modules, as an important component of traction converters, are developing towards modularization and serialization, and the applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00H01L23/473
CPCH02M7/003H01L23/473
Inventor 唐跃中黄堃郑宗强黄兴德黄小鉥周敏袁景毛俊杨海涛徐琴方陈
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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