Vehicle-mounted integrated charger driving circuit based on dual three-phase permanent magnet synchronous motor driving system

Abstract

The invention relates to the technical field of vehicle-mounted integrated charger driving circuits, and particularly relates to a vehicle-mounted integrated charger driving circuit based on a dual three-phase permanent magnet synchronous motor driving system. The circuit comprises a first converter electrically connected with a first winding and a second converter electrically connected with a second winding, the first winding is electrically connected with an alternating-current charging gun module, the first converter and the second converter are further electrically connected with a battery direct-current source through a third converter, a control switch is arranged in the first winding, and the control switch is used for realizing the conversion between the charging function and the driving function of the driving circuit of the vehicle-mounted integrated charger. According to the vehicle-mounted integrated charger driving circuit based on the dual three-phase permanent magnet synchronous motor driving system, switching of multiple functions can be controlled by a single group of switches, and complex operation of a vehicle-mounted integrated charging driving circuit in the prior art is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted integrated charger drive circuits, in particular to a vehicle-mounted integrated charger drive circuit based on a dual-three-phase permanent magnet synchronous motor drive system. Background technique [0002] The electric vehicle integrated charging system refers to reconfiguring the electric vehicle motor winding as the energy storage filter inductor, and reusing the electric driver with a higher power level as the rectifier, thus forming a new high power density integrated on-board charging system. Through this reconstruction method, no additional devices are needed, and the original electric vehicle drive system is transformed into a charging system, which can increase the vehicle AC charging power, save the space in the vehicle, and greatly reduce the cost, thereby promoting the popularization of electric vehicles. [0003] The integrated charging system is divided into single-phase A...

AI Technical Summary

Problems solved by technology

[0005] 1. Additional devices are required, which increases the cost;

[0006] 2. Complex winding reconfiguration methods affect safety;

[0007] 3. It cannot be fully reused at high power;

[0008] 4. Motor rotation problem occurs during charging

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