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Matrix type motor driving system based on bidirectional wireless electric energy transmission

A motor drive system, two-way radio technology, applied in motor generator control, control of electromechanical transmission, electronic commutation motor control, etc., can solve the problems of insufficient portability, many power conversion stages, and unreliable operation.

Active Publication Date: 2020-05-12
SOUTHEAST UNIV
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  • Summary
  • 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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  • Matrix type motor driving system based on bidirectional wireless electric energy transmission
  • Matrix type motor driving system based on bidirectional wireless electric energy transmission
  • Matrix type motor driving system based on bidirectional wireless electric energy transmission

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 type motor driving system based on bidirectional wireless electric energy transmission. In the system, an energy transmission mode adopts coupling coil type wireless electric energy transmission, and a signal transmission mode adopts a wireless communication technology. According to the invention, one-step power conversion from high-frequency alternating current tolow-frequency alternating current is realized by utilizing a direct matrix converter, so that a direct-current bus capacitor with high failure rate is removed, and the number of power conversion stages is reduced so as to substantially improve the reliability and the power density; two-way power transmission capacity is achieved through coordination control of converters in a vehicle body and wheels, so that braking energy is fed back to a battery side so as to improve the energy utilization efficiency; and the application range of the designed matrix type motor driving system based on bidirectional wireless power transmission is not limited to hub motors, and the matrix type motor driving system based on bidirectional wireless power transmission also has important reference value for special industrial applications with wireless requirements, such as joint driving motors of robots.

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 Applications(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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