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Three-phase N-line switch linear composite power conversion device of tandem N-source output equipment

A technology of source output and emitter follower, which is applied in the direction of output power conversion device, intermediate conversion to DC conversion equipment, conversion equipment that can be converted to DC without intermediate conversion, etc., and can solve the problem of increasing power devices , cost increase, three-phase system "cost performance is difficult for enterprises to accept and other issues

Inactive Publication Date: 2007-02-14
ANHUI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0002] The present invention is proposed on the basis of the prior invention patent "Tracking Power Active Filter" (Patent No.: 00112420.X). When the unit is combined, the power devices need to be multiplied, and the cost increases. The "cost performance" of the three-phase system is difficult for enterprises to accept, thus limiting the development space of this original patent achievement

Method used

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  • Three-phase N-line switch linear composite power conversion device of tandem N-source output equipment
  • Three-phase N-line switch linear composite power conversion device of tandem N-source output equipment
  • Three-phase N-line switch linear composite power conversion device of tandem N-source output equipment

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] figure 1 Among them, the preceding unit 1 of unit 2 may be an AC / DC rectifier. When the switching filter unit 2 is an AC chopper, the unit 1 is omitted. The three-phase switching filter unit 2 supplies power to the three-phase linear unit 3 . Unit 3 supplies power to the load.

[0019] figure 1 The solid line part represents the situation of the three-phase three-wire system: in which, the linear unit 3 only uses three power devices to form the three phases in the unit 3-1, wherein one power device in each phase is formed with one power device in the other phase "Source or emitter follower pair tube"; line voltage ripple power supply mode is adopted. When the three-phase ripple power supply voltage output by unit 2 and the voltage on the load track the same three-phase reference signal in unit 4 in proportion, the three-phase signal corresponding to the thr...

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Abstract

This invention discloses a three-phase N switch linearity compound power conversion device serial with N source output devices, which compounds a linear unit and a switch filter unit of ripple supply to realize that the fidelity transfer power signals of source or emitter output device-like linear power amplifier either have the fine dynamic performance of load step force and the advantage of linear loads suiting resistance, induction and capacitive and the non-linear loads of some thyristors or casts away the shortcomings of low efficiency, heavy and large volume so as to get the performance better than switch amplifier, which provides a female parent for the coming-out or regeneration of three-phase boosters, starters, frequency conversion suppliers and super-low frequency motor converters and other special supplies of high performance harmonic-suppression.

Description

Technical field: [0001] The invention belongs to the technical field of power electronics, and in particular relates to a three-phase N-wire switching linear composite power conversion device with N source output devices connected in series. Background technique: [0002] The present invention is proposed on the basis of the prior invention patent "Tracking Power Active Filter" (Patent No.: 00112420.X). When the unit is combined, power devices need to be multiplied, and the cost increases. The "cost performance" of the three-phase system is difficult for enterprises to accept, thus limiting the development space of this original patented achievement. Invention content: [0003] The purpose of the present invention is to overcome the problems existing in the prior art, and provide a three-phase N-wire switching linear composite power conversion device with N source followers connected in series. [0004] The three-phase N-wire switching linear compound power conversion dev...

Claims

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Application Information

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IPC IPC(8): H02M5/00H02M5/22H02M5/293H02M5/44H02M5/458H02M1/12
Inventor 周谦之吴斌胡文华
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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