Three-phase rectifier fault assessment device

A three-phase rectifier and three-phase rectifier technology are applied in the simulation devices, instruments, transportation and packaging of space navigation conditions, which can solve the problems of large learning barriers of full-bridge converters and achieve the effect of improving professional skills.

Inactive Publication Date: 2021-02-26
NANJING POLYTECHNIC INSITUTE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the more important aspects of system debugging, waveform observation and actual fault analysis in the full-bridge converter, almost all the training devices are not involved, which makes the learning obstacles for students in the full-bridge converter relatively large

Method used

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  • Three-phase rectifier fault assessment device

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing and embodiment the present invention is specifically introduced as follows:

[0010] The invention discloses a fault assessment device for a three-phase rectifier, which has a quadrangular box body, and transparent panels around and on the upper part. Phase rectification circuit working status indication "light, there is a three-phase rectifier and auxiliary circuit at the bottom of the box, the three-phase rectification circuit includes input EMI (01), input rectification (02), input filter (03), three-phase rectifier ( 04), TC787 trigger circuit (05), drive circuit (06), protection circuit (07), the input EMI (01) includes a fuse, the input rectifier (02) includes a rectifier diode, and the three-phase rectifier (04) includes Switch tubes Q2 and Q3, rectifier transformer, rectifier diode, output high-frequency filter inductor, the TC787 trigger circuit (05) contains output pulses, the auxiliary circuit includes a relay, t...

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Abstract

The invention discloses a three-phase rectifier fault assessment device which is provided with a square box body, transparent panels are arranged on the periphery and the upper portion of the box body, a three-phase rectifier and an auxiliary circuit are arranged at the bottom of the box body, and a three-phase rectifier circuit comprises an input EMI (01), an input rectifier (02), an input filter(03), a three-phase rectifier (04), a TC787 trigger circuit (05),a drive circuit (06) and a protection circuit (07), the auxiliary circuit comprises a relay, wires are connected between the three-phase rectifier circuit and the auxiliary circuit and between the three-phase rectifier circuit and the transparent panel according to electrical circuits, fault points K1 to K4 are arranged in the three-phase rectifier, and the fault points are connected with a fault operation switch on the panel of the box body through the relay of the auxiliary circuit.

Description

technical field [0001] The invention relates to a training fault assessment device for a full-bridge converter, in particular to a three-phase rectifier fault assessment device. Background technique [0002] The full-bridge converter is an important aspect of the application of power electronics technology. In traditional vocational education, experiments and training related to full-bridge converters use training devices made by teaching instrument manufacturers. For the more important aspects of system debugging, waveform observation and actual fault analysis in the full-bridge converter, almost all the training devices are not involved, which makes the learning obstacles for students in the full-bridge converter relatively large. In addition, as a new type of high-voltage and high-power converter, the multi-level converter overcomes many shortcomings of the two-level circuit while obtaining high-quality output waveforms. [0003] Therefore, there is an urgent need to de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/00
CPCG09B9/00
Inventor 王颖
Owner NANJING POLYTECHNIC INSITUTE
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