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

Bipolar soft switching DC transformer

A technology of DC transformer and soft switch, which is applied in the direction of converting DC power input to DC power output, instruments, and adjusting electric variables, etc. Switching capacity and other issues to achieve the effect of improving system efficiency

Pending Publication Date: 2018-03-20
TSINGHUA UNIV
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after adding auxiliary semiconductor switches, the bidirectional DC transformer does not have good soft switching capability, nor can it form a bipolar low-voltage DC terminal. In addition, adding devices will undoubtedly increase the cost

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
  • Bipolar soft switching DC transformer
  • Bipolar soft switching DC transformer
  • Bipolar soft switching DC transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention is described below based on examples, but the present invention is not limited to these examples.

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings; however, example embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey exemplary implementations to those skilled in the art. Like reference numerals refer to like elements throughout.

[0028] It will also be understood that when an element is referred to as being “between,” “connected to,” or “coupled to” another element, it can be directly between, directly connected to, or coupled to the other element. one element, or intervening elements may be present. In contrast, when an element is referred to as being "directly between," "directly connected to" or "couple...

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

The invention provides a bipolar soft switching DC transformer, which comprises n BDAB convertors of which the medium-voltage / high-voltage sides are connected in series and the low-voltage sides are connected in parallel, wherein n is an arbitrary positive integer; each BDAB convertor comprises a medium-voltage / high-voltage side active full-bridge power unit, an isolation transformer and a low-voltage side active full-bridge power unit, which are sequentially connected; the medium-voltage / high-voltage side active full-bridge power unit comprises an H-bridge structure module which is connectedwith a primary winding of the isolation transformer in series; the low-voltage side active full-bridge power unit comprises a low-voltage side full-bridge module which is connected with a secondary winding of the isolation transformer; and the low-voltage side full-bridge module is filtered through a filter unit and then bipolar DC voltage +VLV, 0 and -VLV is extracted. According to the bipolar soft switching DC transformer, the soft switching capability of the bipolar soft switching DC transformer can be improved, thereby improving the operating efficiency of a system and providing a bipolarlow-voltage DC side.

Description

technical field [0001] The invention belongs to the technical field of electric power and relates to a solid-state transformer, in particular to a bipolar soft-switching DC transformer. Background technique [0002] With the development of power electronic control technology and device manufacturing technology, flexible DC power transmission based on fully controlled voltage source converter (VSC) has achieved rapid development, especially with the development of multi-terminal flexible DC power transmission technology, for DC networking It provides an effective technical approach and also encourages the extension of flexible DC technology to the power distribution side. [0003] In order to realize the connection of DC transmission and distribution networks of different voltage levels, as well as for the access of new energy sources, the access of energy storage systems, and the application of different DC loads, the conversion of DC voltage levels and the control of energy...

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
IPC IPC(8): H02M3/335H02M1/32
CPCH02M1/32H02M3/3353H02M3/33584H02M1/0058H02M1/0067H02M1/325Y02B70/10
Inventor 宋强曾嵘赵彪李建国
Owner TSINGHUA UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com