Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Motor test method in low temperature and low pressure environment

A low temperature and low voltage, 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: 2015-12-23
HARBIN INST OF TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Motor test method in low temperature and low pressure environment
  • Motor test method in low temperature and low pressure environment
  • Motor test method in low temperature and low pressure environment

Examples

Experimental program
Comparison scheme
Effect test

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 with the output shaft of the accompanying motor 2 through the coupling 3, then put it into the high-low temperature and low-pressure test box 4 and fix it, and set the test temperature in the high-low temperature and low-pressure test box 4 at -150°C ~ -200°C Between, and the temperature test points are taken at equal intervals, and 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 generat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a motor test method in a low temperature and low pressure environment, which belongs to the technical field of motor characteristic testing in the low temperature and low pressure environment. The method comprises the steps that a tested motor and an escort motor are placed into a high-low temperature and low pressure experiment box; the tested motor works in a motor state, and the escort motor works in a generator state; the stator current of the tested motor gradually changes from rated current of 1.5 times to rated current of 0.5 times; the stray loss of the tested motor working in the motor state is PMs; the tested motor works in the generator state, and the escort motor works in the motor state; the stator current of the escort motor gradually changes from rated current of 1.5 times to rated current of 0.5 times; the stray loss of the tested motor working in the generator state is PGs; and measurement parameters and calculation results are combined to acquire the average value of the load stray loss of the tested motor. According to the invention, the parameters of the motor in the low temperature and low pressure environment can be measured; a dual-system back-to-back method is used to test the motor in the environment; and the motor test method has a broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of motor characteristic testing under low 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 low-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 low temperature and low pressure, and the performance meets the design requirements. However, most of the existing motor testing methods are suitable for normal temperature and pressure conditions, and cannot meet the testing requirements for motors under low temperature and low pressure conditions. Contents of the invention [0003] The purpose of the present inventi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com