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Novel motor or gearbox load test system

A technology of load test and gearbox, which is applied in the direction of motor generator test, electrical components, electromechanical devices, etc. It can solve the problems of high power consumption, power loss of high-power inverters, and high construction costs, so as to reduce construction costs and save electricity bills Effect

Pending Publication Date: 2021-04-16
上海宝准电源科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the cost of two high-power inverters will account for more than 80% of the cost of the entire test system, and there is a problem of high construction costs.
Although it is also an energy mutual feedback system, the two high-power inverters also consume electric energy, so there is also a problem of high power consumption

Method used

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  • Novel motor or gearbox load test system
  • Novel motor or gearbox load test system
  • Novel motor or gearbox load test system

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as image 3 and 5 As shown, a new type of motor load test system includes a tested motor, an accompanying motor, a low-power inverter, a small power inverter and a loader. The rotating shaft of the tested motor and the rotating shaft of the accompanying motor pass through The loader realizes the differential connection, the low-power inverter is connected to the power grid through the rectifier, the low-power inverter is respectively connected to the tested motor and the accompanying motor, and the loader is connected to the rectifier through the small-power inverter.

[0026] Further, the loader includes a case body 3 and a planetary gear package I1, a planetary gear package II2 and a first-stage cylindrical gear installed in the box body 3, and the planetary gear package I1 and the planetary gear package II2 respectively include The sun gear, planetary gear, planetary carrier and ring gear 5, the planetary carrier of the planetary gear package I1 and the planeta...

Embodiment 2

[0034] Such as Figure 4 and 5 As shown, a new type of gearbox load test system includes the tested gearbox, the accompanying gearbox, the driving motor, the loading motor, the low-power inverter, the small-power inverter and the loader, and the tested gearbox The low-speed end of the test gearbox is connected to the low-speed end of the test gearbox, the rotating shaft of the dragging motor is connected to the high-speed end of the test gearbox, the load motor shaft is connected to the high-speed end of the test gearbox through the loader to achieve differential speed connection, low power frequency conversion The loader is connected to the power grid through a rectifier, the low-power inverter is connected to the driving motor and the loading motor, and the loader is connected to the rectifier through a small-power inverter.

[0035] Further, the loader includes a case body 3 and a planetary gear package I1, a planetary gear package II2 and a first-stage cylindrical gear in...

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Abstract

The invention discloses a novel motor or gearbox load test system. The motor load test system comprises a tested motor, an accompanying test motor, a low-power frequency converter, a low-power frequency converter and a loader. The gearbox load test system comprises a tested gearbox, an accompanying gearbox, a dragging motor, a loading motor, a low-power frequency converter, a low-power frequency converter and a loader. According to the novel motor or gearbox load test system, only the low-power frequency converter is needed, the cost of the low-power frequency converter is about 20% of that of a high-power frequency converter of a traditional test system, and therefore the manufacturing cost of the load test system can be greatly reduced. The power consumption of the low-power frequency converter is also greatly less than that of two high-power frequency converters in the traditional test system, and the electric charge is saved by 20-30 percent in the same test process.

Description

technical field [0001] The invention belongs to the technical field of test systems, and in particular relates to a novel motor or gear box load test system. Background technique [0002] The traditional motor load test system needs to use two high-power inverters, and the two high-power inverters control one motor respectively (one motor under test is used as a motor; the other motor is used as a generator ), the electric energy is closed on the common DC bus of the two frequency converters, the power grid and the rectifier only provide loss compensation for the test gas cylinder, see figure 1 . [0003] The traditional gearbox load test system is similar to the motor load test, except that two gearboxes are connected between the two motors (one is the tested gearbox and the other is the accompanying gearbox), and the two gearboxes The high-speed shafts of the two gear boxes are respectively connected with two motors (a drag motor and a loading motor), and the low-speed h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34H02K7/116
Inventor 宋加旺朱强梁光耀
Owner 上海宝准电源科技有限公司