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

Starting method of brushless direct current motor

A technology of brushed DC motor and extra current, which is applied in the starting device and other directions, can solve the problems of poor stability and slow starting speed, and achieve the effect of ensuring stability and closed-loop acceleration stability

Active Publication Date: 2020-05-22
DREAM INNOVATION TECH (SUZHOU) CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the inventors of the present invention have found that using open-loop control to control the BLDC motor has poor stability in the start-up process; and adopting closed-loop control to control the BLDC motor can have better start-up stability. performance, but slower startup

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
  • Starting method of brushless direct current motor
  • Starting method of brushless direct current motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that in each implementation manner of the present invention, many technical details are proposed in order to enable readers to better understand the present invention. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in the present invention can also be realized.

[0020] The first embodiment of the present invention relates to a method for starting a brushless DC motor, such as figure 1 shown, including the following steps:

[0021] Step S101: Controlling the open-loop start of the brushless DC motor.

[0022] Specifically, the so-called open-loop s...

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 embodiment of the invention relates to the technical field of motor control, and discloses a starting method of a brushless direct current motor. The method comprises the following steps of: controlling the brushless direct current motor to be started in an open-loop manner; detecting the rotating speed of the brushless direct current motor rotor in real time; judging whether the rotating speed of the brushless direct current motor rotor is greater than a first preset threshold value or not; and if so, controlling the brushless direct current motor to perform closed-loop acceleration. Thestarting method of the brushless direct current motor provided by the embodiment of the invention has the advantages of improving the starting speed of the brushless direct current motor while ensuring the stability of the starting process of the brushless direct current motor.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a control method for a brushless DC motor. Background technique [0002] Brushless DC motor is a kind of DC brushless DC motor developed with the development of microprocessor technology, the continuous application of high frequency and low power consumption power devices, and the continuous improvement of brushless DC motor drive control methods. Its electromagnetic The structure is the same as that of the brushed DC brushless DC motor, but the winding of the brushless DC motor is installed on the stator, and the magnet steel is installed on the rotor. With the continuous development of drive control technology and electronic technology, brushless DC motors have been widely used. The brushless DC motor in the prior art usually adopts open-loop control or closed-loop control to start during the starting process. [0003] However, the inventors of the present invention hav...

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): H02P6/21
CPCH02P6/21
Inventor 俞浩
Owner DREAM INNOVATION TECH (SUZHOU) CO LTD
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