A testing device for an alternator

Abstract

The invention discloses a test device for an alternating current generator. The test device comprises a frame, a measurement and control system, a dragging case, and a power converter, and also comprises an operation bench for cooling and heating; a workbench is disposed at the top surface of the frame; a cooling system and a heating system are disposed under the workbench in the frame; a dragging motor and a switching tool are installed on the workbench; the dragging motor and the switching tool are in a transmission connection; a test piece for test is the alternating current generator connected with the switching tool; the switching tool is used for simulating an accessory casing of the alternating current generator, and is provided with two sets of independently oil supply loops mutually separated and not influencing each other; the measurement and control system comprises a control computer and a measurement and control unit; the control computer controls the dragging motor to operate; and the measurement and control unit performs data acquisition and control, and monitors and controls the dragging motor. The test device can automatically measure relative parameters of the generator in different work states in real time, and provides a basis for product development, performance examination, and acceptance inspection.

Description

technical field [0001] The invention relates to the technical field of testing an alternator, in particular to a testing device for an alternator. Background technique [0002] The aero-engine numerical control system (FADEC, full-authority digital electronic engine control mechanism in which the alternator includes supporting power conversion) is an important component of the aero-engine numerical control system and the main power supply of the system. The safety and reliability of the alternator, It directly affects the safety and reliability of the entire engine numerical control system, and high efficiency, longevity and high reliability are the inevitable requirements for its development. In order to improve design efficiency, effectively avoid design repetitions due to lack of experience, and ensure project schedule requirements, it is necessary to verify the design scheme while designing, and make a fast and reliable evaluation. [0003] In the design process of avia...

AI Technical Summary

Problems solved by technology

[0004] The test and acceptance platform of the alternator in the existing aero-engine numerical control system adopts the traditional gear-up gearbox method, which has a large moment of inertia and slow response speed, and cannot truly reproduce the transient change process of the engine.

Unable to meet the testing and acceptance requirements of high-power and high-speed generators

[0005] Due to the lack of special testing and testing equipment, the lack of detection and testing methods after the product enters the factory, and the lack of depth of test verification, it has always affected the smooth progress of the development of the entire engine numerical control system.

The technology related to the development of generators, especially the test and testing technology of key components of generators, is a technology strictly blocked by foreign countries, and there is no similar equipment in China for reference.

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