Jiggling phase searching method for three-phase AC servo motor
A servo motor, three-phase AC technology, applied in the field of micro-motion phase finding, can solve the problems of large rotation angle of the motor, low phase finding accuracy, long phase finding time, etc. High phase precision effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0051] In this embodiment, Elmo APM SB02ADK-9 rotary three-phase AC servo motor and HN-10 / 400 servo driver are used to realize the micro-motion phase finding method of the present invention, and the servo motor is unloaded during the experiment.
[0052] First, according to the step 1 of the phase finding method of the present invention, the phase finding parameter initialization setting is carried out:
[0053] Set the assumed value α of the rotor magnetic pole electrical angle α 0 is 0°;
[0054] Set the allowable deviation angle δ of the electrical angle α to 2°;
[0055] Set the initial value of angle correction θ to 180°;
[0056] Set the maximum value of the phase-seeking current I maxThe maximum continuous current of the three-phase AC servo motor is 4A;
[0057] Set the stop value θ of the angle correction amount θ 0 is 22.5°.
[0058] Set the adjustment coefficient k of the angle correction amount θ to 0.75;
[0059] Then perform phase finding, according to ste...
Embodiment 2
[0068] In this embodiment, the allowable deviation angle δ value in the initialization setting of the above-mentioned embodiment 1 is set to 1°, and the initialization settings of other parameters remain unchanged, and the phase finding is performed again. The process is similar to that of the embodiment 1 and will not be described again. The final phase-finding result is α=109.3°, the whole phase-finding process takes 1.2 seconds, and the phase-finding error does not exceed 1°. The process data are shown in Table 2.
[0069] Table 2: Phase finding process data with allowable deviation angle δ=1°
[0070]
[0071] As can be seen from the data in Table 2, since the phase-finding accuracy is improved to δ=1°, the number of phase-finding times of the offset weighted stepping method increases, which is increased by 2 compared with the embodiment 1 of the phase-finding accuracy δ=2° For the second time, the phase finding time has also been extended, but more accurate phase findi...
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