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Test system of high power frequency conversion electric drive equipment

A test system and transmission equipment technology, applied in the direction of motor generator test, measuring instrument, measuring device, etc., can solve the problems of weak adaptability and convertibility, low test efficiency, high cost, etc., to improve adaptability and reliability The effect of changing ability, reducing labor intensity and cost, and improving test efficiency

Inactive Publication Date: 2017-04-26
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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AI Technical Summary

Problems solved by technology

[0002] In various mines, high-voltage frequency conversion transmission equipment is widely used. However, before the frequency converter is put into use, it needs to be tested for various characteristics of mechanical loads and electrical performance, such as frequency converters, motors or frequency conversion motors. Due to many test items Moreover, it is complex and requires the test system to have good adaptability and transformability to meet the test requirements of different types and specifications of the equipment under test.
[0003] However, the existing test equipment widely has the following disadvantages: the test system is complex, bulky, expensive, and requires frequent disassembly and assembly, resulting in low test efficiency and labor-intensive shortcomings. More importantly, its adaptability And the transformability is weak, it is difficult to meet the increasingly higher mining requirements

Method used

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  • Test system of high power frequency conversion electric drive equipment
  • Test system of high power frequency conversion electric drive equipment
  • Test system of high power frequency conversion electric drive equipment

Examples

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Embodiment Construction

[0028] figure 1 It is the principle diagram of the present invention, as shown in the figure, a high-power variable frequency electric drive equipment testing system provided by the present invention includes a test loading feedback unit, a motor under test connected to the test loading feedback unit, and a tested The frequency converter under test connected to the motor, and the test drive feedback unit connected to the output end of the frequency converter under test, the power end of the test load feedback unit is connected to the DC bus, and the power end of the test drive feedback unit is connected to the DC bus. The busbar connection, through the above structure, can effectively improve the adaptability and transformability of the system, and can meet the requirements of modern mining, and the whole system can accurately test the high-voltage frequency conversion transmission equipment, and effectively simplify the test structure, without frequent disassembly and assembly...

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Abstract

The invention provides a test system of high power frequency conversion electric drive equipment. The system comprises a test load feedback unit, a tested motor which is in a transmission connection with the test load feedback unit, a tested frequency converter which is connected to the tested motor, and a test driving feedback unit which is connected to the output end of the tested frequency converter, wherein the power end of the test load feedback unit is connected to a direct current bus, and the power end of the test driving feedback unit is connected to the direct current bus. Through the above structure, the adaptability and transform ability of the system can be effectively improved, the whole can accurately test high voltage frequency conversion drive equipment, a test structure is effectively simplified, frequent disassembly and assembly are not needed, the test efficiency is improved, and the labor intensity and cost are reduced.

Description

technical field [0001] The invention relates to a test system, in particular to a test system for high-power variable-frequency electric drive equipment. Background technique [0002] In various mines, high-voltage frequency conversion transmission equipment is widely used. However, before the frequency converter is put into use, it needs to be tested for various characteristics of mechanical loads and electrical performance, such as frequency converters, motors or frequency conversion motors. Due to many test items Moreover, it is complex, and the test system needs to have good adaptability and transformability to meet the test requirements of different types and specifications of the equipment under test. [0003] However, the existing test equipment widely has the following shortcomings: the test system is complex, bulky, expensive, and requires frequent disassembly and assembly, resulting in low test efficiency and labor-intensive shortcomings. More importantly, its adap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34G01R31/00
CPCG01R31/00G01R31/34
Inventor 陈钊孔令刚谭垒严见中徐三民马代辉彭红玲
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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