Dual-active bridge type converter for realizing wide-range soft switching

A dual active bridge and soft switching technology, applied in output power conversion devices, DC power input into DC power output, instruments, etc., can solve the problem that dual active bridge converters cannot meet zero voltage switching and other problems

Pending Publication Date: 2021-04-23
NINGBO GINLONG TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in some occasions, the battery voltage needs to be switched between two different voltage levels. When the DC output voltage changes, the

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
  • Dual-active bridge type converter for realizing wide-range soft switching
  • Dual-active bridge type converter for realizing wide-range soft switching
  • Dual-active bridge type converter for realizing wide-range soft switching

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017]In order to better understand the present invention, the scope of the present invention will be more clearly defined, and some of the specific embodiments of the present invention will be described in detail below. It should be noted that the following embodiments are merely the embodiments of the present invention are merely a part of the embodiments of the present invention, in which specific direct descriptions of the related structures are merely understood, each particular characteristic is not of course The implementation range of the present invention is directly defined.

[0018]In some cases, the voltage of the battery needs to switch between two different voltage levels, such as the voltage of the first battery pack BT1.o1The voltage of the second battery pack BT2 is Vo2, And vo1= 2Vo2. Ensure that the second switch S2 is switched to the first battery pack BT1, and the dual active bridge converter can realize the original, sub-side switch zero voltage switch within the ...

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 discloses a dual-active bridge type converter for realizing wide-range soft switching. The converter comprises a full-bridge switching network, an inductance energy storage network, a transformer transmission network and a rectification filter network which are connected in sequence, the input end of the full-bridge switching network is connected with an input direct current source, and the output end of the full-bridge switching network is connected with the input end of the inductance energy storage network; the input end of the rectification filter network is connected with the output end of the transformer transmission network; and the inductance energy storage network comprises a first inductor L1 and a first switch S1, and the first switch S1 is connected with the primary side of a second transformer T2 of the transformer transmission network in parallel to form a second parallel branch. The dual-active bridge type converter is simple in structure, the battery voltage is selected according to the second selector switch S2, then the first switch S1 is switched, and the number of transformers of the inductor energy storage network is changed, so it is guaranteed that even if the load voltage is changed, the input and output voltage transmission ratio k of the dual-active bridge type converter is kept unchanged.

Description

technical field [0001] The invention relates to the field of bidirectional DC / DC converters for mutual switching of battery voltages, in particular to a double active bridge converter for realizing wide-range soft switching. Background technique [0002] High efficiency and high power density are the goals and development direction of switching power converters. For a converter circuit composed of power devices, an increase in switching frequency will cause an increase in the switching loss of the power device, which will eventually lead to a decrease in converter efficiency. Especially for high-frequency converters, in order to reduce switching losses, soft switching technology has emerged, and its main implementation methods include zero voltage switching (Zero Voltage Switching, ZVS) and zero current switching (Zero Current Switching, ZCS). The dual active bridge (DAB) converter is widely used in the field of power conversion due to its characteristics of electrical isol...

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): H02M3/335H02M1/088H02M1/08
CPCH02M1/083H02M1/088H02M3/33584Y02B70/10
Inventor 许颇张波魏万腾王一鸣
Owner NINGBO GINLONG TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap