Features of using low-pass filter for small signal demodulation in phase-locking motor drive
Phase-locking motor drive based on phase-lock principal provides high accuracy and wide shaft speed range. А low-pass filter is used for PWM-signal demodulation in phase-lock loop. This type of demodulator limits loop bandwidth and working range of motor drive. The main purpose of this article is...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Budgetary Educational Institution of Higher Education
2024-02-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2024/%E2%84%961%20(189)%20(%D0%9E%D0%9D%D0%92)/73-78%20%20%D0%91%D1%83%D0%B1%D0%BD%D0%BE%D0%B2%20%D0%90.%20%D0%92.,%20%D0%94%D0%B0%D0%B9%D0%BD%D0%BE%D0%B2%D0%B8%D1%87%20%D0%90.%20%D0%9C..pdf |
| Summary: | Phase-locking motor drive based on phase-lock principal provides high accuracy
and wide shaft speed range. А low-pass filter is used for PWM-signal demodulation
in phase-lock loop. This type of demodulator limits loop bandwidth and working
range of motor drive. The main purpose of this article is to analyze low-pass filter
influence on motor drive dynamic characteristics in low shaft speed area. The
authors developed Matlab Simulink model to researcher phase-locking motor drive
working in synchronous mode. As a result the dependence of angular velocity
ripple versus rotational speed is obtained. The choosing condition of low-pass
filter time constant is defined for different shaft speed area by using the obtained
dependence. The received results can be applicable for design precision phaselock motor drive. |
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| ISSN: | 1813-8225 2541-7541 |