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A matrix motor drive system based on two-way wireless power transfer

A motor drive system, two-way radio technology, applied in the direction of motor generator control, control of electromechanical transmission, electronic commutation motor control, etc., can solve the problems of many power conversion stages, unreliable operation, low power density, etc. The effect of simple structure, improved reliability and improved power density

Active Publication Date: 2021-09-03
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the problems existing in the prior art, and provides a matrix motor drive system based on two-way wireless power transmission. Insufficient portability, unreliable operation due to cable and DC bus capacitance

Method used

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  • A matrix motor drive system based on two-way wireless power transfer
  • A matrix motor drive system based on two-way wireless power transfer
  • A matrix motor drive system based on two-way wireless power transfer

Examples

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Embodiment 1

[0051] Embodiment 1: see figure 1 , a matrix motor drive system based on a two-way wireless power transfer system, including: a car battery (1.1), a full-bridge converter (1.2), an LCC compensation network (1.3) for a secondary wireless charging system, and a secondary wireless charging coil (1.4), primary side wireless charging coil (1.5), LCC compensation network of primary side wireless charging system (1.6), three-phase-single-phase matrix converter (1.7), single-phase AC output interface (1, 2), three Phase capacitor filter (1.9), permanent magnet synchronous motor (1.8), where:

[0052] The car battery (1.1) is connected with the full-bridge converter (1.2);

[0053] The full-bridge converter (1.2) is connected to the LCC compensation network (1.3) of the secondary wireless charging system;

[0054] The LCC compensation network (1.3) of the secondary wireless charging system is connected to the secondary wireless charging coil (1.4);

[0055] The secondary wireless c...

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Abstract

The invention provides a matrix motor drive system based on two-way wireless power transmission. In the system, the energy transmission mode adopts coupling coil type wireless power transmission, and the signal transmission mode adopts wireless communication technology. Using the direct matrix converter to realize one-step power conversion from high frequency AC to low frequency AC not only removes the DC bus capacitor with high failure rate, but also reduces the number of power conversion stages, greatly improving reliability and power density. The two-way power transmission capability is realized through the coordinated control of the converters in the car body and in the wheels, so that the braking energy is fed back to the battery side, which improves the energy utilization efficiency. The designed matrix motor drive system based on bidirectional wireless power transmission is not limited to in-wheel motors, but also has important reference value for special industrial applications with wireless requirements, such as robot joint drive motors.

Description

technical field [0001] The invention relates to a drive system, in particular to a matrix motor drive system based on two-way wireless power transmission, and belongs to the technical field of matrix motor drive systems. Background technique [0002] In-wheel motor (IWM), as a new type of electric vehicle drive motor, combines a motor, a transmission, and an electrical circuit in the hub. Compared with the structure of traditional electric vehicles in which motors are installed in the car body, in-wheel motors omit structures such as clutches, transmissions, drive shafts and mechanical differentials, thus increasing the utilization area of ​​the car and improving the efficiency of mechanical transmission. Moreover, the in-wheel motor enables direct and independent control of the torque driving each wheel of the vehicle, which can significantly reduce the steering radius and increase the flexibility of vehicle trajectory control. What is even more advantageous is that, by us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P27/08H02P21/14H02P21/16H02P21/10H02J50/12H02J7/00
CPCH02P21/10H02P21/14H02P27/08H02P2207/05H02J50/12H02P21/16Y02P80/10
Inventor 王政关蕾吴佳丽刘鹏程程明
Owner SOUTHEAST UNIV
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