Method for detecting motor speed and motor rotor position of air conditioner outdoor unit
A motor rotor and detection method technology, applied in the direction of control of electromechanical transmission, control of generators, motor generator control, etc., can solve the problem of the lack of detection method for the forward and reverse of the motor, the inability to detect the motor speed of the outdoor unit of the air conditioner and the position of the motor rotor Accuracy and other issues to achieve the effect of improving precision and high control precision
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0019] The present invention solves its technical problem, and the technical solution adopted is: the single-chip microcomputer MCU acquires the phase voltage value between the three-phase electromotive force U / V / W of the motor and its center point N, and further according to the phase voltage of the three-phase electromotive force U / V / W The zero-crossing time T between two values 60 And the corresponding motor rotor position θ when the phase voltage crosses zero 60N , θ 60N ∈[0,60,120,180,240,300], get the motor speed and its position.
[0020] Due to θ 60N at T 60 Time, will not change in time, in order to obtain high-precision motor speed and rotor position, special use of phase-locked loop control, through the phase-locked loop adjustment.
[0021] figure 1 It is a phase-locked loop control block diagram. When the three-phase electromotive force has a zero-crossing, record the time T that has elapsed since the last zero-crossing occurred at this time. 60 , at the sam...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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