Test system of high power frequency conversion electric drive equipment

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...

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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

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