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Title: Wide-speed variable-speed motor with excitation direct-control alternating current-direct current shaft self decoupling
Other Title: 励磁直接控制交直轴自解耦的宽转速调速电机
Authors: Niu, S 
Wang, QS 
Fu, WN 
Issue Date: 2019
Source: 中国专利 ZL 201510472349.X
Abstract: The invention discloses a wide-speed variable-speed motor with excitation direct-control alternating current-direct current shaft self decoupling. The variable-speed motor is composed of a stator, a rotor, and a permanent magnet. The stator consists of a stator iron core and armature windings; the stator iron core is designed to have an opening groove structure; and the armature windings are arranged in the opening grooves of the stator iron core. The armature windings provide power through an inverter and generate alternating currents with direct-current biases; the armature windings are arranged in a distributed centralized winding manner and each winding winds around stator teeth. The rotor includes a rotor iron core. According to the motor disclosed by the invention, the winding structure is simplified; the direct-current winding and the alternating-current winding of the existing hybrid excitation motor are combined into one set of windings, so that the winding difficulty can be reduced, the space, occupied by the windings, inside the stator can be saved. And reliability and control flexibility of the motor can be improved. Moreover, speed regulation of a motor in a wide rotating speed range can be realized.
Publisher: 中华人民共和国国家知识产权局
Rights: 专利权人: 香港理工大学
Appears in Collections:Patent

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