A switched reluctance wind generator converter and its control method

A wind turbine and switched reluctance technology, which is applied in the direction of controlling generators, controlling generators, and control systems through magnetic field changes, can solve problems such as power consumption, complex converters, and reduced power generation efficiency, so as to improve power generation and transmission. Effect

Active Publication Date: 2019-05-21
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Among the current considerations in the industry, a big trend is to make the converter more and more complex, requiring more and more switching tubes, and the frequent switching actions of the switching tubes, especially PWM control, etc., resulting in a large number of switching tubes. Loss, consumes a lot of power, reduces power generation efficiency

Method used

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  • A switched reluctance wind generator converter and its control method

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Embodiment Construction

[0033] A switched reluctance wind generator converter, with figure 1 It is the structure diagram of the converter circuit of the present invention, which is composed of a converter main circuit 1, an output bus capacitor Cm, an isolated DC / DC converter 2, and an excitation and discharge main circuit 3. The converter main circuit 1 outputs positive and negative terminals Connect the positive and negative ends of the output bus capacitor Cm, and at the same time serve as the positive and negative ends of the input of the isolated DC / DC converter 2, the positive and negative ends of the output of the isolated DC / DC converter 2 are connected to the positive and negative ends of the excitation and discharge main circuit 3 input Both ends, the positive and negative ends of the excitation and discharge main circuit 3 output are connected to the positive and negative ends of the inverter main circuit 1 input, the positive end of the output of the inverter main circuit 1 is also connect...

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Abstract

A switched reluctance wind power generator converter, which is composed of a converter main circuit, an output bus capacitor, an isolated DC / DC converter, and an excitation and discharge main circuit. The input of the DC / DC converter, the output of the isolated DC / DC converter is connected to the input of the excitation and discharge main circuit, the output of the excitation and discharge main circuit is connected to the input of the inverter main circuit, and the positive terminal of the output of the inverter main circuit is also connected to the excitation and discharge main circuit. The discharge input terminal of the circuit, the positive output terminal of the excitation and discharge main circuit, the negative output terminal of the main converter circuit, and the positive input terminal of the main converter circuit are short-circuited; under this structure, through three types of control modes under different conditions, a wide power generation range, High power generation capacity, multi-angle flexible control, suitable for various wind power generation fields.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a converter circuit topology system of a switched reluctance wind power generator and a control method thereof. Background technique [0002] The use of switched reluctance generators to generate electricity is a new type of power generation; at present, there are no real commercial cases of using switched reluctance generators in power generation systems adapted to wind characteristics at home and abroad. The reason is that switched reluctance generators The unique structure and variable flow system are relatively special, and are being studied in recent years. [0003] Wind power generation is a sunshine industry. Most of the current wind power generators use permanent magnet synchronous or doubly-fed asynchronous generators. The former has shown the disadvantage of high cost in recent years, especially the extensive use of rare earth permanent magnet materials. The latter ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/36H02P9/10
CPCH02P9/102H02P9/36
Inventor 孙冠群
Owner CHINA JILIANG UNIV
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