Supercharge Your Innovation With Domain-Expert AI Agents!

Temperature rise equivalent test method capable of solving temperature rise response under any load excitation

A technology of equivalent testing and temperature rise, applied in the field of efficiency testing, to achieve the effect of reducing energy consumption, avoiding damage, and simplifying the calculation process

Pending Publication Date: 2020-02-07
HARBIN INST OF TECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing short-term load excitation equivalent test method for motor temperature rise requires the same load excitation test conditions, and provide a temperature rise equivalent test method that can obtain the temperature rise response under arbitrary load excitation

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
  • Temperature rise equivalent test method capable of solving temperature rise response under any load excitation
  • Temperature rise equivalent test method capable of solving temperature rise response under any load excitation
  • Temperature rise equivalent test method capable of solving temperature rise response under any load excitation

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0029] Specific implementation mode 1: This implementation mode discloses a temperature rise equivalent test method that can obtain the temperature rise response under arbitrary load excitation. The specific steps of the method are as follows:

[0030] Step 1: The motor is loaded with any given variable load state, and the power loss value P of the motor that changes with time is recorded during the entire loading test process 1 (t) and motor temperature rise T R1 (t), the temperature rise is the difference between the temperature of the tested motor components and the ambient temperature; the measurement data is recorded in a discrete form, and the sampling time of the data record is τ, then P 1 (t) and T R1 (t) The corresponding discrete sequence is P 1 (n) and T R1 (n), where n is the serial number of the discrete data, n=0,1,2,3,...; the data with the serial number n is the value at the time nτ; the loss corresponding to the loading start time is recorded as u 0 , name...

Embodiment 1

[0038] The object of embodiment 1 is a first-order heat transfer object, and the test load excitation is short-term excitation. This embodiment discloses a temperature rise equivalent test method that can obtain the temperature rise response under arbitrary load excitation, and the steps of the method are as follows:

[0039] Step 1: The motor is loaded with any given variable load state, and the motor loss power value P that changes with time t is recorded during the entire loading test process 1 (t) and motor temperature rise T R1 (t), the temperature rise is the difference between the temperature of the tested motor part and the ambient temperature; the measurement data is recorded in a discrete form, and the sampling time of the data record is τ=0.1s, then P 1 (t) and T R1 (t) The corresponding discrete sequence is P 1 (n) with T R1 (n), where n is the serial number of discrete data, n=0,1,2,3,...,60000, the data with serial number n is the value at time nτ; the corres...

Embodiment 2

[0061] The object of embodiment 2 is a first-order heat transfer object, and the test load excitation is long-time excitation. This embodiment discloses a temperature rise equivalent test method that can obtain the temperature rise response under arbitrary load excitation, and the steps of the method are as follows:

[0062] Step 1: The motor is loaded with any given variable load state, and the motor loss power value P that changes with time t is recorded during the entire loading test process 1 (t) and motor temperature rise T R1 (t), the temperature rise is the difference between the temperature of the tested motor components and the ambient temperature. Record measurement data in discrete form, the sampling time of data recording is τ=0.01s, then P 1 (t) and T R1 (t) The corresponding discrete sequence is P 1 (n) with T R1 (n), where n is the serial number of discrete data, n=0,1,2,3,...,2000, the data with serial number n is the value at time nτ; the corresponding lo...

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 discloses a temperature rise equivalent test method capable of solving temperature rise response under any load excitation. The invention belongs to the technical field of motor testing.The invention relates to a temperature rise equivalent test method which does not depend on an accurate thermal model and solves temperature rise data under any load excitation according to the temperature rise data under certain load excitation by utilizing the superposition of basic attributes of the model. According to the method, the temperature rise response data and the load excitation dataunder any given load excitation are recorded, the temperature rise response data under any other load excitation can be restored only through addition and multiplication of the data, thermal model parameters do not need to be used, and the method does not depend on a model. The method can effectively process the influence of load change on temperature rise. Particularly, the method can indirectlyobtain the temperature rise data of the motor in the variable-load continuous excitation state by using the measurement data in the short-time variable-excitation load state, the temperature rise ofthe motor in the test process is low, the risk of high-temperature damage is avoided, and the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of motor testing, and relates to a temperature rise equivalent test method that does not rely on an accurate thermal model and utilizes the superposition of the basic attributes of the model to obtain the temperature rise data under an arbitrary load excitation according to the temperature rise data under a certain load excitation . Background technique [0002] The temperature rise of the motor affects the reliability and service life of the insulation in the motor, which is closely related to the safety and reliability of the motor and its application equipment. Therefore, it is of great significance to accurately obtain the temperature rise of specific load working conditions such as motor rating and overload to verify the rationality and reliability of the motor design. [0003] At present, the method of temperature rise test for a specific working state is to continuously load the motor and maintain it...

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): G06F30/20G06F119/08G01R31/34G01R31/00
CPCG01R31/343G01R31/003
Inventor 王宝超胡建辉江善林尚静李勇王骞刘承军
Owner HARBIN INST OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com