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Winding-type linear brushless doubly-fed generator

A double-fed generator, winding technology, applied in the shape/style/structure of the winding conductor, can solve the problems of poor durability and poor reliability, and achieve the effect of reducing the failure rate, high winding coefficient and improving power density

Active Publication Date: 2015-10-21
黄山市开发投资集团有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a wire-wound linear brushless doubly-fed generator, which can effectively improve the working efficiency of the generator at low speed, and at the same time solve the problems of poor durability and poor reliability

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  • Winding-type linear brushless doubly-fed generator
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  • Winding-type linear brushless doubly-fed generator

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Embodiment Construction

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

[0021] The wound linear brushless doubly-fed generator of the present invention comprises: a stator and a mover, two sets of independent coil windings are arranged on the iron core of the stator, and the number of pole pairs of the power windings is NP 1 / m k , the number of pole pairs of the control winding is NP 2 / m k , where m k for P 1 and P 2 The greatest common divisor of , N≥(m k +1); mover by (P 1 +P 2 ) groups of windings, each group contains K adjacent mover winding coils, all mover coils in each group are connected in series and then self-shorted, and the mover windings of any two groups are connected in the same way. (P 1 +P 2 ) group mover coils distributed in Z d +Z d / (P 1 +P 2 ) within the number of slots, where Z d is the stator power winding P 1 The number of mover slots in the corresponding mover length range, Z d Satisfy Z d =n(P ...

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Abstract

The invention discloses a winding-type linear brushless doubly-fed generator, and proposes a unit motor according to a unit motor concept, wherein the total number of pole-pairs of a stator power winding and a control winding of the unit motor is N times. Meanwhile, a rotor winding employs a mode of symmetric distribution like a sine rule according to the principle of tooth harmonic, thereby reducing coils of different phases of a power winding P1 and a control winding P2. The rotor winding can achieve the coupling of a control winding and another winding well, and the air-gap magnetic density harmonic is lower. The generator can enable a magnetic field with a lower moving speed to be modulated into a high-speed magnetic field, and effectively improves the power density. The control winding is placed at a stator side, and a sliding ring and a brush are removed. The generator is low in motor failure rate, is long in service life, eliminates the higher harmonic of a magnetomotive force of a rotor to the maximum degree through the adjustment of the span and turns of a rotor coil, achieves the higher winding coefficients of the pole pairs of power windings P1 and P2, and achieves the high efficiency and energy saving.

Description

technical field [0001] The invention belongs to the technical field of electric machines, and in particular relates to a wound linear brushless doubly-fed generator. Background technique [0002] In the field of linear variable speed power generation such as ocean waves, traditional rotary motors can be used to generate power, but this technology also has shortcomings: low efficiency and poor durability at low speeds, which have become important factors restricting wave power generation. In recent years, some scholars have proposed to use a linear motor to directly use the vertical motion of the wave as the motive force to drive the linear motion of the motor mover to generate electric energy, which can improve the efficiency of the entire system. [0003] At present, the research on the linear wave generator mainly focuses on the permanent magnet linear synchronous generator. However, due to the slow movement speed of ocean waves, the movement speed of the magnetic poles o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/28H02K3/12
Inventor 阚超豪朱晓威张家午
Owner 黄山市开发投资集团有限公司
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