Unlock instant, AI-driven research and patent intelligence for your innovation.

Power converter

A technology of power conversion device and electrical connection, which is applied in the direction of high-efficiency power electronic conversion, output power conversion device, electrical components, etc., and can solve problems such as surge voltage increase

Pending Publication Date: 2020-12-22
TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the capacity of the power conversion device is increased, the surge voltage at the time of switching may increase due to an increase in the energized current, an increase in wiring inductance, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power converter
  • Power converter
  • Power converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, a power conversion device according to an embodiment will be described with reference to the drawings. In addition, in the following description, the same code|symbol is attached|subjected to the structure which has the same or similar function. Also, overlapping descriptions of these configurations may be omitted. In addition, in the drawings referred to below, illustration of control gate wiring, gate terminals, and the like may be omitted for convenience of description.

[0030] Here, "positive pole P", "negative pole N", and "neutral point C" are first defined. "Positive electrode P" refers to a portion at a positive potential when the power conversion device is operating. "Negative electrode N" refers to a portion that has a negative potential when the power conversion device is operating. "Neutral point C" refers to a point that becomes an intermediate potential (neutral point potential) between the positive electrode P and the negative electrode N...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A power converter according to an embodiment is provided with first to fourth switching modules, first and second clamp diodes, and first and second buses. The first bus has a first main portion and afirst standing portion provided in the first main portion. The first main portion electrically connects the first switching module and the second switching module, and is electrically connected to the first clamp diode. The second bus has a second main portion and a second standing portion provided in the second main portion. The second main portion electrically connects the third switching module and the fourth switching module, and is electrically connected to the second clamp diode. The second standing portion faces the first standing portion.

Description

technical field [0001] Embodiments of the present invention relate to a power conversion device. Background technique [0002] As one type of power conversion device, a neutral point clamp type power conversion device is known. A neutral point clamp type power conversion device includes, for example, four switching elements electrically connected to each other in series, four freewheeling diodes respectively connected in antiparallel to these four switching elements, and two clamping elements. diode. [0003] However, the power conversion device is expected to increase in capacity. However, if the capacity of the power conversion device is increased, the surge voltage at the time of switching may increase due to an increase in energized current, an increase in wiring inductance, or the like. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Laid-Open No. 2016-158450 Contents of the invention [0007] The problem to be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/487H02M7/12H02M7/48H02M5/458
CPCH02M7/487H02M7/003H02M5/4585H02M1/32
Inventor 金子和秀山口治之
Owner TOSHIBA MITSUBISHI-ELECTRIC IND SYST CORP