Vehicle-mounted integrated charger based on six-phase open winding motor driving system

Abstract

The invention discloses a vehicle-mounted integrated charger based on a six-phase open winding motor driving system, which relates to a vehicle-mounted integrated charger, so as to overcome the problems that an electric vehicle motor can rotate and the charging power is low when an existing integrated charger is in a charging mode and a V2G mode. The integrated charger comprises a six-phase open-winding motor, a DC/AC power converter and a DC/DC converter. When the vehicle-mounted integrated charger works in a charging mode, electric energy outputted by grid-side three-phase power is inputtedto a storage battery to be charged through the six-phase open winding motor, the DC/AC power converter and the DC/DC converter in sequence to charge the storage battery; and when the vehicle-mounted integrated charger works in a V2G mode from a vehicle to a power grid, electric energy outputted by the storage battery is inputted to grid-side three-phase power through the DC/DC converter, the DC/ACpower converter and the six-phase open-winding motor in sequence, and the electric energy is fed back to the grid-side three-phase power.

Description

technical field [0001] The invention relates to a vehicle-mounted integrated charger, in particular to a vehicle-mounted integrated charger device based on an open-winding motor. Background technique [0002] Most of the existing electric vehicles place an on-board charger on the car to realize the charging function. In order to take into account the weight, volume and cost of electric vehicles, electric vehicle manufacturers usually can only install low-power chargers, so most of the on-board chargers Only the slow charging function can be realized. The integrated charger system solves this problem. It uses the electric vehicle driver and motor winding and other built-in devices to realize the charging function. At the same time, the maximum charging power of the charger can be the power of the electric vehicle driver, which can realize the fast charging function. In addition, the integrated charger system can also feed back the temporary excess energy of the electric vehi...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a vehicle-mounted integrated charger based on a six-phase open-winding motor drive system in order to overcome the problems that the electric vehicle motor will rotate and the charging power is small in the charging mode and V2G mode of the existing integrated charger.

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