Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multiphase resonance bridge type modular multi-level switch capacitor converter

A modular multi-level, switched capacitor technology, applied in high-efficiency power electronic conversion, regulating electrical variables, converting DC power input to DC power output, etc., can solve the problem of large input current ripple and affect the efficiency of converter energy conversion and other problems to achieve the effect of reducing output current ripple, improving conversion efficiency and power density

Active Publication Date: 2014-03-05
XIAMEN UNIV
View PDF6 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a single ZCS bridge multi-level modular switched capacitor converter, the input current ripple is large, and a capacitor with a large capacity value is often required to filter the current ripple to adapt to the application in photovoltaic power generation, which is bound to Affects the efficiency of the entire converter energy conversion

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
  • Multiphase resonance bridge type modular multi-level switch capacitor converter
  • Multiphase resonance bridge type modular multi-level switch capacitor converter
  • Multiphase resonance bridge type modular multi-level switch capacitor converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0019] refer to Figure 1 to Figure 4 , figure 1 It is a structural schematic diagram of a multi-phase resonant bridge-type modular multi-level switched capacitor converter provided by the present invention, which includes m unit resonant switched capacitor circuits connected in parallel. figure 2 It is a unit resonant switched capacitor circuit, including an H bridge 1, a resonant inductor 2 and a basic switched capacitor module 3. image 3 For the H-bridge circuit diagram, Figure 4 It is a switched capacitor module circuit. The H-bridge contains four MOSFET switch tubes, where S 1 , S 4 A pair of switch tubes that are turned on at the same time, S 2 , S 3 It is another pair of switch tubes that are turned on at the same time. S 2 , S 3 The drive signal hysteresis S 1 , S 4 The drive signal 180°. The basic switched capacitor module incl...

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 multiphase resonance bridge type modular multi-level switch capacitor converter. The input ports of at least two unit resonance switch capacitor circuits are connected in parallel with each other, and the output ports of the two unit resonance switch capacitor circuits are connected in parallel with each other; the unit resonance switch capacitor circuits are bridge type modular multi-level switch capacitor converter topologies; each unit circuit realizes resonance soft switches and guarantees output of 4N times of input voltage; phase-shifting control is adopted among all the unit circuits. The output voltage ripple is further reduced, and the problem that the input current ripple of a single-phase switch capacitor converter is tool high is solved, so that the energy conversion efficiency of a system and the power class of the converter are further improved. The multiphase resonance bridge type modular multi-level switch capacitor converter is applicable to occasions with high current and high gain.

Description

technical field [0001] The invention relates to a multiphase switched capacitor converter, in particular to a multiphase DC-DC switched capacitor converter. Background technique [0002] For the switched capacitor converter with traditional structure, there are problems such as large voltage spikes and electromagnetic interference during operation, and as the switching frequency increases, the switching loss also increases rapidly. In order to solve the above problems, a zero current switching (ZCS) technology is introduced in the converter, which makes full use of the stray inductance in the circuit as a resonant inductance. The proposed switched capacitor converter with leap capacitor (FCSCC), multi-level modular switched capacitor converter (MMSCC) and symmetrical multi-level modular switched capacitor converter (SMMSCC) are the one proposed in the invention Compared with the bridge modular multilevel switched capacitor converter (BMSCC), there is no advantage in the num...

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): H02M3/335H02M1/14
CPCY02B70/1433Y02B70/10
Inventor 何良宗周伟曾涛张景瑞
Owner XIAMEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com