Features of using low-pass filter for small signal demodulation in phase-locking motor drive
| Autor: | A. V. Bubnov, A. M. Daynovich |
|---|---|
| Jazyk: | English<br />Russian |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Омский научный вестник, Vol 1 (189), Pp 73-78 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1813-8225 2541-7541 |
| DOI: | 10.25206/1813-8225-2024-189-73-78 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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