An integrated electric automobile driving and charging power converter

A technology that integrates power and electric vehicles. It is applied in electric vehicle charging technology, electric vehicles, and the conversion of AC power input to DC power output. It can solve the problems of large system size, poor charging safety, and high cost, and achieve good charging safety. , the effect of reducing the space

Pending Publication Date: 2017-10-20
NANJING NARI GROUP CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This integration method needs to add additional switches and filter inductors, resulting in large system size, high cost, and lack of electrical isolation, resulting in poor charging safety.

Method used

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  • An integrated electric automobile driving and charging power converter
  • An integrated electric automobile driving and charging power converter
  • An integrated electric automobile driving and charging power converter

Examples

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Embodiment Construction

[0024] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as Figure 4 As shown, an electric vehicle driving and charging integrated power converter includes: an isolated bidirectional DC conversion circuit connected to a power battery, a three-phase stator winding of a motor, a DC terminal connected to the isolated bidirectional DC conversion circuit and an AC terminal The three-phase bridge circuit connected to the three-phase stator winding of the motor, the AC end connected to the single-phase uncontrolled rectification circuit of the charging plug, the neutral point n connected to the three-phase stator winding of the motor and the one-way non-controlling rectification circuit Control the contactor MK between the positive poles of the DC terminal of the rectifier circuit. As an embodiment, the three-phase stator winding is a three-phase stator winding of a permanent magnet sync...

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PUM

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Abstract

The invention discloses an integrated electric automobile driving and charging power converter. The integrated electric automobile driving and charging power converter comprises an isolated bidirectional DC conversion circuit connected with a power cell, a motor three-phase stator winding, a three-phase bridge circuit of which an AC end is connected with the motor three-phase stator winding and a DC end is connected with the isolated bidirectional DC conversion circuit, a single-phase uncontrolled rectification circuit of which an AC end is connected with a charging plug, and a contactor connected between a neutral point of the motor three-phase stator winding and a DC end of the single-phase uncontrolled rectification circuit. The integrated electric automobile driving and charging power converter is advantaged in that the power converter is integrated to make a driving system and a charging system share the same power converter, and high power density, high reliability, unit power factor, electrical isolation and low cost can be realized.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle control, and in particular relates to an electric vehicle driving and charging integrated power converter. Background technique [0002] With the deepening of the global energy crisis and the increasing problems of air pollution and global warming, electric vehicles have attracted the attention of countries all over the world and become the main direction of future automotive technology development. The power electronic system of an electric vehicle mainly includes a motor controller, an on-board charger, and a low-voltage DC converter, which are important units for realizing electric energy conversion and transmission, and have an important impact on the power, economy, and safety of electric vehicles. However, the harsh operating environment of electric vehicles and the requirements of high efficiency, high performance, high reliability and low pollution have posed great challenges to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M7/5387H02P27/06H02P6/08B60L11/18
CPCH02M3/3353H02M3/33561H02M7/53873H02P6/085H02P27/06B60L53/24B60L2210/40Y02T10/64Y02T10/72Y02T10/70Y02T10/7072Y02T90/14
Inventor 黄珺温传新董长城骆健俞拙非朱金大路小俊
Owner NANJING NARI GROUP CORP
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