Noninductive planar bus

A plane and busbar technology, applied in the field of high-frequency and high-power power electronic converter processing, can solve the problems of difficult to master the welding process, special materials and processes, long processing cycle, etc., to speed up the development progress, low equivalent inductance, Processing simple effects

Inactive Publication Date: 2009-03-04
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing flat-panel busbars generally use soft insulating sheets and insulating films as the middle insulating layer and outer surface insulating materials respectively. Although these soft materials are easy to bend flat-panel busbars, they are difficult to drill
The insulating sheet and insulating film used in the flat-panel busbar are heat-adhesive materials, which can be bonded with the copper plate as a whole when heated, but the materials and processes are relatively special and complicated.
The side of the bobbin tube of the existing flat busbar and the inner surface of the copper plate hole are welded together, so that the integrity of the flat busbar is better, but the welding process is difficult to master
Only a few professional factories can do OEM. Although the products of these manufacturers can indeed meet the requirements in terms of performance, the process is complex, expensive, and the processing cycle is long.

Method used

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Examples

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Embodiment Construction

[0026] Take the planar bus applied in 50kVA active power filter (APF) as an example to illustrate.

[0027] The geometry of planar busbars is varied and can be completely planar or a three-dimensional structure with bends. The planar plate busbar structure and simple processing are very suitable for limited process conditions, and the plate busbar with this structure is suitable for most applications. Flat busbars with bending are mainly used in occasions that require high structural compactness, but the process is more complicated. Generally speaking, for the sake of simplicity, the planar busbar is preferred, so the planar busbar used in the 50kVA APF is also planar.

[0028] The length of the DC side circuit of the converter has a great influence on the equivalent inductance of the flat busbar, which requires the circuit layout to be compact. The main components of the DC side circuit of a typical inverter are the main power module and the DC energy storage capacitor. The...

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Abstract

This invention relates to a non-inductive plane bus line including several piled up copper plates in distance, insulation plates and connection spools, in which, said insulation plate is made of hard epoxy resin thin plate, and the copper plates and the insulation plates are fastened by bolts, and insulation pads are set between two ends of the bolt and the copper plate, which reduces the turned-off voltage peak of the positive and negative of IPM module greatly.

Description

technical field [0001] The invention relates to the processing field of high-frequency and high-power power electronic converters, in particular to a non-inductive planar busbar. Background technique [0002] High frequency and high power is one of the important directions of today's power electronics technology, which determines the ability to solve many major problems in the national economy, such as: 1) Power system, such as reactive power, harmonic compensation, AC and DC transmission, flexible power control 2) High-power energy storage and consumption reduction and energy saving, such as energy storage power stations, maglev flywheel superconducting and supercapacitor energy storage, medium and high voltage speed regulation and braking energy feeding; 3) Distributed and renewable energy generation Grid-connected networking, such as wind energy, solar energy, coal bed methane and small hydropower generation; 4) Electric traction, such as magnetic levitation, electric loc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G5/00H02B1/20H02M1/00H01B7/00
Inventor 陈国柱仇志凌
Owner ZHEJIANG UNIV
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