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Voltage type RMC converter, electric vehicle reversible charge and discharge system and control method thereof

A voltage type, inverter technology, applied in the field of power supply, can solve the problems of large system volume, low power conversion efficiency, low power density, etc., and achieve the effects of simple system structure, reduced power conversion links, and simplified reversible charge and discharge control.

Pending Publication Date: 2019-10-25
BEIFANG UNIV OF NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing electric vehicle charger uses a three-phase voltage source rectifier to realize the bidirectional rectification function, and the DC side uses a bidirectional DC converter to realize the step-up or step-down function. The conversion efficiency is low, and a large-capacity energy storage capacitor is required on the DC side, resulting in a large system size and low power density

Method used

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  • Voltage type RMC converter, electric vehicle reversible charge and discharge system and control method thereof
  • Voltage type RMC converter, electric vehicle reversible charge and discharge system and control method thereof
  • Voltage type RMC converter, electric vehicle reversible charge and discharge system and control method thereof

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see figure 1 , the electric vehicle reversib...

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Abstract

The invention relates to a voltage type RMC converter, an electric vehicle reversible charge and discharge system and a control method thereof. The voltage type RMC converter includes a controller, and an input inductor filter, an RMC switch matrix, a high frequency transformer, a single phase AC / DC converter and an output capacitor filter which are sequentially connected, wherein the RMC switch matrix and the single phase AC / DC converter are both connected with the controller. The voltage type RMC converter is advantaged in that three-stage charging control and constant current discharge control of a storage battery are realized directly by the voltage type RMC converter, the system structure is simple, no intermediate DC energy storage is required, the power conversion process is reduced, power conversion efficiency is improved, and reversible charge and discharge control for an electric vehicle charger is simplified.

Description

technical field [0001] The invention relates to the technical field of power supplies, in particular to a voltage-type RMC converter, a reversible charging and discharging system for electric vehicles and a control method. Background technique [0002] With the increasingly serious problems of energy crisis and environmental pollution, the demand for sustainable energy development is increasingly strong, and electric vehicle technology has emerged as the times require, becoming a hot technology in current research. The reversible charging and discharging system for electric vehicle charger is a device that converts the electric energy of the grid into a device that meets the charging and discharging requirements of electric vehicles after a series of transformations. [0003] The existing electric vehicle charger uses a three-phase voltage source rectifier to realize the bidirectional rectification function, and the DC side uses a bidirectional DC converter to realize the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02M7/00H02M7/797H02J5/00B60L53/20
CPCH02J3/38H02M7/00H02M7/797H02J5/00B60L53/20Y02T10/72Y02T10/70Y02T90/14Y02T10/7072
Inventor 王君瑞贾思宁向上王闯单祥李学生张新闻
Owner BEIFANG UNIV OF NATITIES
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