Four-phase switch reluctance motor power converter

A technology of power converter and reluctance motor, which is applied in the direction of converting DC power input to DC power output, output power conversion device, and adjusting electric variables, etc., which can solve the problems of increasing the complexity of the power conversion system and reducing reliability, etc. Achieve the effect of simple structure, low cost and strong structural adaptability

Inactive Publication Date: 2018-08-21
CHINA JILIANG UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The power conversion circuit naturally uses power switch tubes, especially when many switch tubes work at high frequency switching, the loss of the switch tubes and the heat dissipation problems caused by them are serious. Switching devices and their control systems are relatively popular, of course, this will inevitably increase the complexity of the power conversion system and reduce the reliability

Method used

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  • Four-phase switch reluctance motor power converter

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Embodiment Construction

[0030] The switched reluctance motor of this embodiment is a four-phase winding, which is respectively M / N / P / Q four-phase windings according to the adjacent order distributed on the stator, and each phase winding is composed of two branch windings and is symmetrically wound on different On the salient poles of the stator, that is, the eight salient poles of the stator, as attached figure 1 Shown is the power converter circuit of the four-phase winding switched reluctance motor in this embodiment, and a controller controls each switching tube of the power converter circuit according to the required detection information.

[0031] The four-phase switched reluctance motor power converter of this embodiment consists of a battery X, a first switching tube V1, a second switching tube V2, a third switching tube V3, a fourth switching tube V4, a fifth switching tube V5, and a sixth switching tube V5. The switch tube V6, the seventh switch tube V7, the eighth switch tube V8, the first ...

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Abstract

A four-phase switch reluctance motor power converter is composed of eight switch tubes, four diodes, two capacitors, a storage battery, an inductor and an isolation bidirectional DC / DC. Every two adjacent windings in a main circuit form one group; when the main circuit completes magnetic excitation and power generation, the output voltage value can be increased; the magnetic excitation storage battery can be charged according to needs and meanwhile can feed energy backwards; one power converter is adopted when a motor runs; the power converter is simple in structure, convenient to control, lowin switch tube switching frequency, low in loss, high in flexibility and adaptability and suitable for various power generation / electric occasions.

Description

technical field [0001] The invention relates to the field of switched reluctance motors, in particular to a high-performance power conversion system of a four-phase winding switched reluctance motor and a control method thereof. Background technique [0002] The switched reluctance motor has a simple and solid structure, low manufacturing cost, no windings on the rotor, no permanent magnets, high reliability, and the failure of one phase winding does not affect the normal operation of the other phase windings. It has strong fault tolerance and has broad application prospects. [0003] When the switched reluctance motor is used as a wind power generator, it has the advantages of low cost and high reliability compared with double-fed asynchronous or permanent magnet synchronous wind power generators; as a motor in various industries, its excellent body structure and operating characteristics are also have considerable advantages. [0004] Switched reluctance motors generally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/158H02P25/092
CPCH02M3/1584H02P25/092
Inventor 孙冠群蔡慧陈卫民
Owner CHINA JILIANG UNIV
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