Implementation of PLL and FLL trackers for signals with high harmonic content and low sampling frequency

Laszlo Mathe, Florin Iov, Dezso Sera, Lajos Török, Remus Teodorescu

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

10 Citations (Scopus)

Abstract

The accurate tracking of phase, frequency, and amplitude of different frequency components from a measured signal is an essential requirement for many digitally controlled equipment. The accurate and robust tracking of a frequency component from a complex signal was successfully applied for example in: grid connected inverters, sensorless motor control for rotor position estimation, grid voltage monitoring for ac-dc converters etc. Usually, the design of such trackers is done in continuous time domain. The discretization introduces errors which change the performance, especially when the input signal is rich in harmonics and the sampling frequency is close to the tracked frequency component. In this paper different discretization methods and implementation issues, such as Tustin, Backward-Forward Euler, are discussed and compared. A special case is analyzed, when the input signal is reach in harmonics and the sampling frequency is only 10 times larger than the tracked frequency component.
Original languageEnglish
Title of host publicationProceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014
Number of pages6
PublisherIEEE Press
Publication date2014
Pages633 - 638
ISBN (Print)978-1-4799-5183-3
DOIs
Publication statusPublished - 2014
Event14th International Conference on Optimization of Electrical and Electronic Equipment - Brasov, Romania
Duration: 22 May 201424 May 2014

Conference

Conference14th International Conference on Optimization of Electrical and Electronic Equipment
CountryRomania
CityBrasov
Period22/05/201424/05/2014
SeriesOptimization of Electrical and Electronic Equipment (OPTIM), Proceedings
ISSN1842-0133

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Phase locked loops
Sampling
Rotors
Monitoring
Electric potential

Cite this

Mathe, L., Iov, F., Sera, D., Török, L., & Teodorescu, R. (2014). Implementation of PLL and FLL trackers for signals with high harmonic content and low sampling frequency. In Proceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014 (pp. 633 - 638). IEEE Press. Optimization of Electrical and Electronic Equipment (OPTIM), Proceedings https://doi.org/10.1109/OPTIM.2014.6851014
Mathe, Laszlo ; Iov, Florin ; Sera, Dezso ; Török, Lajos ; Teodorescu, Remus. / Implementation of PLL and FLL trackers for signals with high harmonic content and low sampling frequency. Proceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014. IEEE Press, 2014. pp. 633 - 638 (Optimization of Electrical and Electronic Equipment (OPTIM), Proceedings).
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Mathe, L, Iov, F, Sera, D, Török, L & Teodorescu, R 2014, Implementation of PLL and FLL trackers for signals with high harmonic content and low sampling frequency. in Proceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014. IEEE Press, Optimization of Electrical and Electronic Equipment (OPTIM), Proceedings, pp. 633 - 638, 14th International Conference on Optimization of Electrical and Electronic Equipment, Brasov, Romania, 22/05/2014. https://doi.org/10.1109/OPTIM.2014.6851014

Implementation of PLL and FLL trackers for signals with high harmonic content and low sampling frequency. / Mathe, Laszlo; Iov, Florin; Sera, Dezso; Török, Lajos; Teodorescu, Remus.

Proceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014. IEEE Press, 2014. p. 633 - 638 (Optimization of Electrical and Electronic Equipment (OPTIM), Proceedings).

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Mathe L, Iov F, Sera D, Török L, Teodorescu R. Implementation of PLL and FLL trackers for signals with high harmonic content and low sampling frequency. In Proceedings of the 14th International Conference on Optimization of Electrical and Electronic Equipment, OPTIM 2014. IEEE Press. 2014. p. 633 - 638. (Optimization of Electrical and Electronic Equipment (OPTIM), Proceedings). https://doi.org/10.1109/OPTIM.2014.6851014