ZVZCS full-bridge three-port converter and control method thereof

A converter, three-port technology, used in control/regulation systems, conversion of DC power input to DC power output, instruments, etc. Complex structure and other problems, to achieve the effect of small quantity, low cost and high reliability
CN108512430AInactive Publication Date: 2018-09-07NANJING UNIV OF POSTS & TELECOMM
7 Cites 6 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF POSTS & TELECOMM
Publication Date
2018-09-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a ZVZCS full-bridge three-port converter and a control method thereof, and belongs to the technical field of power electronic converters. The converter consists of a transformer, a primary side circuit and a secondary side circuit. The power management and control for three ports of the converter can be realized simultaneously by adjusting the duty ratio of four power switch tubes of the primary side circuit. A non-isolated buck-boost converter and an isolated full-bridge converter are integrated together, the reuse of a primary side switch tube is realized, the quantity of the switch tubes is reduced, and the power density is improved; moreover, a lag bridge arm of the full-bridge converter is serially connected with two diodes, a leading leg switch tube is connected with a parasitic diode and a junction capacitor in parallel, so that the leading leg switch tube realizes zero voltage switching, the lag bridge arm realizes zero current switching-off, the four switch tubes can realize soft switching respectively, and the switching loss is reduced, so that high frequency of the power converter device is realized. The ZVZCS full-bridge three-port converter isapplicable for new energy power generation systems, energy storage systems, electric vehicle power supply systems and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of power electronic converters, in particular to a ZVZCS full-bridge three-port converter and a control method thereof, which are mainly used in new energy power generation, energy storage and electric vehicle power supply systems. Background technique

[0002] The depletion of earth's resources and people's widespread concern about environmental issues make new energy power generation systems more and more important. At present, photovoltaic power generation and wind power generation are the two most widely used forms of renewable energy power generation. However, new energy power generation equipment has the following inherent defects: the output power of power generation equipment is affected by environmental conditions, and the output power varies randomly and is not continuous. , unstable, so the new energy power generation equipment cannot independently, stably and reliably supply power to the output r...

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