Electric vehicle integrated charging system for reconstructing open-winding permanent magnet motor by mode switch
A permanent magnet motor and charging system technology, applied in the electrical field, can solve the problems of complex and changeable winding reconfiguration methods and poor versatility of existing solutions, and achieve the effects of improving the performance of charging circuits, simple reconfiguration methods, and strong versatility
Active Publication Date: 2020-03-17
ZHEJIANG UNIV
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Problems solved by technology
However, because the winding reconfiguration methods proposed by various research schemes are complex and changeable, they need to be designed according to a specific occasion, but are no longer applicable based on another occasion, so the generality of the existing schemes is very poor.
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[0022] The winding reconfiguration method proposed by the present invention will be described in detail below with reference to the drawings and specific implementation methods.
[0023] The present invention is based on the commonly used electric vehicle integrated charging system, such as figure 1 As shown, the main circuit of the charging system includes a single-phase or three-phase AC input power supply 1 , a mode switch 2 , a permanent magnet motor 3 of any phase, a motor driver 4 , a DC side capacitor 5 and a storage battery 6 . The permanent magnet motor 3 of any phase is an open-winding motor. After the winding is reconstructed, one end of the winding is connected to the single-phase or three-phase AC input power supply 1, and the other end is connected to the motor driver 4 to form a rectification circuit together.
[0024] The present invention is based on the winding reconstruction of any phase open-winding permanent magnet motor. For the convenience of analysis, t...
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The invention relates to a permanent magnet motor technology, and aims to provide an electric vehicle integrated charging system for reconstructing an open-winding permanent magnet motor by a mode switch. A main circuit of acharging system comprises an alternating-current input power supply, an arbitrary-phase permanent magnet motor, a motor driver, a direct-current side capacitor and a storage battery, the arbitrary-phase permanent magnet motoris an arbitrary-phaseopen winding permanent magnet motor, two ends of a stator winding are opened and led out of a stator shell, and are respectively connected with the alternating current input power supply and the motor driver through the mode switch to form a rectifying circuit together; according to the mode switch, a winding of the open-windingpermanent magnet motor is reconstructed to serve as an electric vehicle charging circuit inductor, so that a motor rotor is kept static during charging; the AC input power supply is a single-phase ACpower supply input or a three-phase AC power supply input. The method is based on a common electric vehicle integrated charging system, does not increase any hardware cost, is high in scheme universality, is simple in reconstruction mode, and can effectively achieve the purpose that the rotor of the motor is static during charging.
Description
technical field [0001] The invention relates to permanent magnet motor technology, in particular to an electric vehicle integrated charging system for reconfiguring an open-winding permanent magnet motor with a mode switch, and belongs to the field of electrical technology. Background technique [0002] With the continuous improvement of productivity, social development has increasingly urgent demand for fossil energy such as oil and coal, which has brought about problems such as environmental pollution and energy shortage. With its advantages of energy saving and environmental protection, electric vehicles have attracted extensive attention from researchers all over the world, and the research on its related drive system and charging system has also made rapid progress. At present, electric vehicle charging systems are mainly divided into DC charging systems and on-board AC charging systems. Due to the limitations of circuits and devices, DC charging systems have high insta...
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IPC IPC(8): B60L53/22
CPCB60L53/22Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 杨欢徐志伟何绍民李武华
Owner ZHEJIANG UNIV