Test method for motor under high-temperature and low-pressure environment

A low-voltage environment and test method technology, applied in the direction of motor generator testing, etc., can solve the problem of not meeting the motor test and other problems

Active Publication Date: 2015-12-02
HARBIN INST OF TECH
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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 th

Method used

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  • Test method for motor under high-temperature and low-pressure environment
  • Test method for motor under high-temperature and low-pressure environment
  • Test method for motor under high-temperature and low-pressure environment

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specific Embodiment approach 1

[0027] Specific implementation mode one: combine figure 1 Shown, illustrate the technical scheme of this embodiment, its method step is:

[0028] Step 1: Select a motor with the same specifications as the tested motor 1, or a motor with the same synchronous speed as the tested motor 1 but with a power greater than the tested motor 1 as the accompanying motor 2; the output shaft of the tested motor 1 Connect the output shaft of the accompanying motor 2 through the coupling 3, and then put it into the high-low temperature, low-pressure test box 4 and fix it. Set the test temperature in the high-low temperature, low-pressure test box 4 between 100°C and 200°C. The air pressure value is set at less than 0.01Mpa, making it close to the pressure value of the vacuum environment in outer space;

[0029] Step 2: make the tested motor 1 work in the motor state, and the accompanying motor 2 work in the generator state; the first driver 5 drives the tested motor 1 to run and work, so that ...

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Abstract

The invention relates to a test method of a motor under a high-temperature and low-pressure environment and belongs to the technical field of motor characteristic testing under the high-temperature and low-pressure environment. The test method includes the following steps that: a measured motor and a standby motor are arranged in a low-pressure experimental box; the measured motor works in a motor state, and the standby motor works in a generator state; the stator current of the measured motor is gradually decreased to 0.5-times rated current from 1.5-times rated current; the stray loss of the measured motor working in the motor state is P; the measured motor works in a generator state, and the standby motor works in a motor state; the stator current of the standby motor is gradually decreased to 0.5-times rated current from 1.5-times rated current; the stray loss of the measured motor working in the generator state is P<Gs>; and the average value P<->s of the stray loss of the load of the measured motor can be obtained based on the above measured parameters and calculation results. With the test method of the invention adopted, the parameters of the motor can be detected under the high-temperature and low-pressure environment. According to the test method, and the motor can be tested under the high-temperature and low-pressure environment through adopting a double-motor back-to-back test method, and the loss values of various parameters of the motor can be calculated accurately.

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...

Claims

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Application Information

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IPC IPC(8): G01R31/34
Inventor 邹继斌徐永向肖利军赵博王骞赵猛王宝超
Owner HARBIN INST OF TECH
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