A test method for motors under high temperature and low pressure environment

Abstract

The invention discloses a test method for a motor under a high temperature and low pressure environment. It belongs to the technical field of motor characteristic testing under high temperature and low pressure environment. Its method steps are as follows: the motor under test and the accompanying motor are placed in a high-low-temperature, low-pressure test box; the motor under test works in the motor state, and the accompanying motor works in the generator state; the stator current of the motor under test gradually changes from 1.5 times to 0.5 times the rated current; the stray loss PMs of the tested motor working in the motor state; the tested motor works in the generator state, and the accompanying motor works in the motor state; the stator current of the accompanying motor gradually changes from 1.5 times the rated current to 0.5 times Rated current; the stray loss PGs of the tested motor working in the motor state; combine the above measurement parameters and calculation results to obtain the average value of the load stray loss of the tested motor. The method of the invention can measure the parameters of the motor under the high-temperature and low-pressure environment, and can test the motor under the environment by adopting the double-machine dragging method, and can accurately calculate various loss values ​​of the motor.

Description

technical field [0001] The invention belongs to the technical field of motor characteristic testing under high temperature and low pressure environment. Background technique [0002] With the continuous exploration of human beings in the field of outer space, motors, which are essential executive and functional components in aerospace, will be more and more used in various extreme environments, such as high temperature and low pressure environments. Before using the motor, it must be adjusted The performance of the motor is tested accordingly to verify whether it can work normally in the extreme environment of high temperature and low pressure, and the performance meets the design requirements. However, the existing testing methods for electric motors are mostly suitable for normal temperature and normal pressure conditions, and cannot meet the testing requirements for electric motors under high temperature and low pressure conditions. Contents of the invention [0003] T...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a test method for motors under high temperature and low pressure environment, in order to solve the problem that most of the existing test methods for motors are suitable for normal temperature and pressure conditions, and cannot meet the test of motors under high temperature and low pressure conditions

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