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Inverter-stage fault tolerant control method of full bidirectional switch-type two-stage matrix converter

A matrix converter, bidirectional switch technology, applied in the direction of converting AC power input into AC power output, AC power input into DC power output, output power conversion device, etc. The fault-tolerant control of the matrix converter is complex, so that the maximum voltage transfer ratio is not affected and the fault-tolerant control is simplified.

Active Publication Date: 2016-01-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to aim at the deficiencies of the above-mentioned background technology, and provide a fault-tolerant control method for the inverter level of the full-bidirectional switch-type two-stage matrix converter, and realize the inversion of the two-stage matrix converter without increasing the bridge arm Fault-tolerant control of multiple faults at one stage and taking into account the input and output performance, which solves the technical problem that the existing two-stage matrix converter has complex fault-tolerant control and cannot take into account the input and output performance at the same time

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  • Inverter-stage fault tolerant control method of full bidirectional switch-type two-stage matrix converter
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  • Inverter-stage fault tolerant control method of full bidirectional switch-type two-stage matrix converter

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Embodiment Construction

[0037] Embodiments of the present invention will be described in detail below, and the embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0038] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein Explanation.

[0039] (1) Introduction to the topology of a fully bidirectional switching dual-stage matrix converter

[0040] The topology of the ...

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Abstract

The invention discloses an inverter-stage fault tolerant control method of a full bidirectional switch-type two-stage matrix converter, belonging to the technical field of fault tolerant control of an electronic power device. A one-way switching tube in the original two-stage matrix converter is substituted by a bidirectional switch unit to form the full directional switch-type two-stage matrix converter; fault tolerant control methods for inverter-stage single tube short circuit of the full bidirectional switch-type two-stage matrix converter, inverter-stage bidirectional switch unit open circuit, inverter-stage bidirectional switch unit short circuit and inverter-stage single tube open circuit are proposed; the converter has the ability of bearing reverse voltage by additionally arranging six switching tubes at an inverter stage; and the input and output performance are compatible as well as the fault tolerant strategy of the two-stage matrix converter is simplified.

Description

technical field [0001] The invention discloses a fault-tolerant control method of an inverter stage of a fully bidirectional switch-type dual-stage matrix converter, and belongs to the technical field of fault-tolerant control of power electronic devices. Background technique [0002] The matrix converter (MatrixConverter, MC) or the two-stage matrix converter (TwoStageMatrixConverter, TSMC) developed from it has been favored by scholars at home and abroad because of its sinusoidal input and output currents, bidirectional flow of energy, and adjustable input power factor. Extensive and continuous attention and research. [0003] Due to the elimination of the energy storage capacitor on the DC bus and the use of an all-silicon power topology, compared with the traditional "back-to-back" converter, the matrix converter has a long service life, a small operating temperature limit, a compact structure, and a high power density. It is suitable for aviation Aerospace and other oc...

Claims

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Application Information

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IPC IPC(8): H02M5/458H02M7/797
Inventor 韩娜周波秦显慧李业
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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