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

Active Publication Date: 2018-09-14
NANTONG WELL ELECTRIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the car needs to be equipped with an additional set of rectifiers installed in the junction box, and the reconfigured charging circuit can only work in boost mode, and the output voltage adjustment range is narrow

Method used

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

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Embodiment Construction

[0020] The present invention will be further explained below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, an open-winding permanent magnet electric drive reconfigurable on-board charging system for electric vehicles includes a single-phase AC power supply 1, a rectifier bridge 2, an input filter capacitor 3, and two sets of three-phase group voltage inverters 4-1 , 4-2, permanent magnet motor three-phase winding 5, output filter capacitor 6, battery 7, mode switch. Wherein, the mode switch includes a first switch 8-1, a second switch 8-2, and a third switch 8-3.

[0022] The three-phase winding 5 of the permanent magnet motor is an open winding structure. One end of the three-phase winding 5 of the permanent magnet motor is connected to the output end of the first set of three-phase group voltage inverter 4-1, and the other end of the three-phase winding 5 of the permanent magnet motor is Connect the input end of the second set of three-...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02H02M3/158H02P27/12B60L11/18
CPCB60L53/24H02J7/02H02M3/1582H02P27/12Y02T10/64Y02T10/70Y02T10/7072Y02T10/72Y02T10/92Y02T90/14
Inventor 於锋张徐刘兴张晓彤
Owner NANTONG WELL ELECTRIC MOTOR
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