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Frequency converter testing device

A test device and frequency converter technology, applied in the field of frequency converter testing, can solve problems such as waste of human resources, high damage coefficient of electrical equipment, waste of resources, etc., to ensure safety and reliability, improve test efficiency, and reduce experiment risk effect

Inactive Publication Date: 2014-08-20
JIANGSU SHINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the previous loading test device required manual loading control by personnel, which often caused unnecessary waste of resources, and the loading test efficiency was low. In addition, the loading test of the mining frequency converter in the past required many operators to manually load and debug at close range, resulting in human resources. Waste, the personal safety of operators is not well guaranteed, the damage coefficient of electrical equipment is high and the error of the experimental data obtained by the loading test is relatively large, the waste of electric energy is relatively large during the loading test, and the test cost increases

Method used

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Effect test

Embodiment 1

[0038] Such as figure 1 As shown, the frequency converter testing device in this embodiment includes a frequency converter testing device, including:

[0039] The power grid 100 is used to provide test energy to the frequency converter test device;

[0040] An induction voltage regulator 200, used to realize the regulation of the output voltage of the power grid 100;

[0041] The power supply cabinet 300 is used to switch the circuit matching the voltage adjusted by the induction voltage regulator 200;

[0042] To the traction motor 600, used to obtain the load moment;

[0043] The load cabinet 500 is used to load the towed motor 600;

[0044] The remote operation cabinet 700 is used to control the power-on and power-off of the inverter test device, and realize the adjustment of the test voltage, the selection of the power supply test line and the test load through the isolated control of the induction voltage regulator 200, the power supply cabinet 300 and the load cabinet...

Embodiment 2

[0056] Such as figure 2As shown, the difference between the frequency converter testing device disclosed in this embodiment and Embodiment 1 is that the frequency converter testing device disclosed in this embodiment also includes the following features:

[0057] In this embodiment, a first isolation control module 201 is also provided between the induction voltage regulator 200 and the remote operation cabinet 700; a first isolation feedback module 301 and a second Two isolation control modules 302; a third isolation control module 501 and a second isolation feedback module 502 are arranged between the load cabinet 500 and the remote operation cabinet 700; Isolated feedback module 601 .

[0058] Among them, the first isolation control module 201, the second isolation control module 302, and the third isolation control module 501 isolate the remote operation cabinet 700 from the power supply cabinet 300, the remote operation cabinet 700 and the load cabinet through the struc...

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Abstract

The invention discloses a frequency converter testing device which comprises a power grid, an induction voltage regulator, a power supply cabinet, a towing motor, a load cabinet, a remote operation cabinet and a PLC, wherein the power grid is used for providing testing energy for the frequency converter testing device, the induction voltage regulator is used for regulating the output voltage of the power grid, the power supply cabinet is used for switching of circuits matched with the voltage obtained after the regulation of the induction voltage regulator, the towing motor is used for acquiring the loading moment, the load cabinet serves as the load of the towing motor, the remote operation cabinet is used for powered-on and powered-off control of the frequency converter testing device and achieving the regulation of testing voltage, selection of power supply testing lines and on-off control of a test load by controlling the induction voltage regulator, the power supply cabinet and the load cabinet in an isolating mode, and the PLC is used for controlling the remote operation cabinet. According to the frequency converter testing device, the loading test process is easy to control, testing efficiency is improved, and the ex-factory quality of the frequency converter is improved.

Description

[0001] technical field [0002] The invention belongs to the field of frequency converter testing, in particular to a frequency converter testing device. [0003] Background technique [0004] After decades of development, modern AC variable frequency drive has become the leading technology of electric drive. Among the motor speed control systems, the frequency conversion speed control system has the best performance and the highest work efficiency. Therefore, the research on the frequency conversion speed control of electric motors is the most practical and extensive work in the current research on electric drive systems. The frequency converter industry has very huge potential. [0005] With the promotion and application of mining frequency converters in mining enterprises, the quality of the product itself has higher requirements, and the loading test of the product is also developing in the direction of automatic control and economical application. When the inverter l...

Claims

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Application Information

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IPC IPC(8): G01R31/00G05B19/05
Inventor 任启洪伏新征吴玉平戴鹏高加林管俊
Owner JIANGSU SHINE TECH
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