Open winding type permanent magnet motor driven reconstructed vehicle-mounted charging system for electric vehicle

A charging technology for electric vehicles and on-board charging, which is applied in the field of power electronics and electric drive, can solve the problems of narrow output voltage adjustment range, and achieve the effects of low cost, elimination of influence, and reduction of harmonic content
CN108539833AActive Publication Date: 2018-09-14NANTONG WELL ELECTRIC MOTOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANTONG WELL ELECTRIC MOTOR
Publication Date
2018-09-14

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Abstract

The invention relates to an open winding type permanent magnet motor driven reconstructed vehicle-mounted charging system for an electric vehicle. The system comprises a single-phase AC power supply,a rectifier bridge, an input filtering capacitor, three-phase voltage inverters, a three-phase permanent magnet motor winding, an output filtering capacitor, a storage battery and mode switches. The charging system sufficiently utilizes original double three-phase inverters, the permanent magnet motor winding, control and sensor units and the like of electric vehicles, and total integration of functions such as motor driving, high-power factor charging, harmonic control and the like is realized by optimizing topology to complete rectification, inversion and power factor correction. During charging, two three-phase voltage inverters are reconstructed into a three-phase cascading Buck-Boost circuit; the permanent magnet motor winding serves as an energy storage inductor of the three-phase cascading Buck-Boost circuit. By means of the charging system, the cost of a device can be effectively reduced and high-power factor charging can be realized.
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Description

technical field

[0001] The invention relates to an open-winding permanent magnet electric drive reconfiguration vehicle-mounted charging system for an electric vehicle, which belongs to the field of power electronics and electric drive and can be applied to new-energy vehicle vehicle-mounted charging applications. Background technique

[0002] As one of the five major themes in the first key development field of the "National Medium and Long-Term Science and Technology Development Plan" (2006-2020), the development of renewable energy technology can deal with global energy and environmental protection issues, and is of great help to the improvement of existing energy It is of extremely important strategic significance to structure and ensure the sustainable development of the national economy. In order to promote the large-scale utilization of renewable energy, electric vehicles and related technologies have also been greatly developed. Especially for the charging system, o...

Claims

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