Three-phase inverter circuit integrated with drive and charging functions, electric vehicle drive and charge function integration device, and vehicle

A technology of three-phase inverter and charging function, which is applied in the direction of battery circuit device, circuit device, output power conversion device, etc., and can solve the problem of ensuring the normal operation of the power tube

Pending Publication Date: 2019-06-28
HENAN SENYUAN HEAVY IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a three-phase inverter circuit, device and automobile with integrated driving and charging functions, which is used to solve the

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  • Three-phase inverter circuit integrated with drive and charging functions, electric vehicle drive and charge function integration device, and vehicle
  • Three-phase inverter circuit integrated with drive and charging functions, electric vehicle drive and charge function integration device, and vehicle

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Embodiment Construction

[0033] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] The present invention proposes an electric vehicle with a three-phase inverter circuit with integrated driving and charging functions. The integrated driving and charging device on the electric vehicle includes a three-phase inverter circuit and a power battery. The three-phase inverter circuit includes a first inverter bridge Module and the second inverter bridge module, the DC side of the first inverter bridge module and the DC side of the second inverter bridge module are connected in parallel to the power battery, and the AC side of the first inverter bridge module is respectively connected to the first charging branch and the first driving branch, the AC side of the second inverter bridge module is respectively connected to the second charging branch and the second driving branch, wherein the first charging branch, the first drivi...

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Abstract

The present invention relates to a three-phase inverter circuit integrated with drive and charging functions, an electric vehicle drive and charge function integration device, and a vehicle. Accordingto control of switches in a first charge circuit and a second charge circuit, charging for a power battery can be achieved, and according to control of switches in a first drive circuit and a seconddrive circuit, drive of the motor can be achieved by employing the power battery. Three-phase winding of the motor is not required when the power battery is charged, namely, connection or disconnection of the three-phase winding does not influence the normal charge of the battery. When a power tube of the inverter circuit generates short-circuit faults, an inverter bridge module with short-circuitfaults can be stopped to work through control of on-off of switches in the (first/second) charge circuits and the (first/second) drive circuits, and the normal work of inverter bridge modules withoutfaults can be ensured so as to ensure normal charge and drive of the vehicle when one inverter module has faults.

Description

technical field [0001] The invention belongs to the technical field of motor system and control, and in particular relates to a three-phase inverter circuit with integrated driving and charging functions, a device and an automobile. Background technique [0002] As an important way to solve the environmental pollution and energy crisis in the transportation field, electric vehicles have attracted more and more attention from the global field. In today's increasingly mature technology of the automobile industry, the key constraints for the popularization and promotion of electric vehicles are batteries and charging technology, among which charging technology Become the key to the range and cost of electric vehicles. [0003] At present, there are two charging methods for the battery of electric vehicles. One is the vehicle-mounted slow charging device. The battery charging device is placed on the electric vehicle, and the ordinary single-phase AC power supply or the charging ...

Claims

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Application Information

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IPC IPC(8): H02M7/5387H02M1/32H02J7/00
Inventor 陈西山常乐苏亚辉汪世伟古伟鹏王勇吕建军张幸张泽工
Owner HENAN SENYUAN HEAVY IND
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