RT Journal Article
T1 Self-Tuning PLL: A New, Easy, Fast and Highly Efficient Phase-Locked Loop Algorithm
A1 Sánchez Herrera, María Reyes
A1 Andújar Márquez, José Manuel
A1 Márquez, Marco A.
A1 Mejías Borrero, Andrés Manuel
A1 Gómez Ruiz, Gabriel
A1 Gómez Ruiz, Gabriel
AB A phase-locked loop or phase lock loop (PLL) is, essentially, a closed loop control system, where its output signal (regulated) maintains a direct (chosen) relationship to the input signal (unregulated). If the phases of the input and output signals remain the same, their frequencies will also match. In its usual way, a PLL is an electronic circuit with filters and controllers that must be tuned each time, according to the input signal parameters. As a contribution and novelty, this paper introduces a new, easy, fast and highly efficient PLL algorithm, that it does not need to adjust every time the input signal changes. This makes it independent of the input signal it receives and, therefore, and in a certain way, universally applicable. In addition, the proposal is implemented exclusively by software, housed in a microcontroller, which also represents another novelty. As another remarkable feature, the proposed algorithm is very simple, with a very low computational cost, whichmakes it very stable, practically insensitive to noise, and very fast. These characteristics and the performance shown over a wide range of input signal frequencies, make the proposed algorithm suitable for use in different applications, from the electricity grid synchronization to the demodulation of frequencymodulation, DC motor drives, etc. In addition to frequency and phase tracking, the developed algorithm generates the signal corresponding to the fundamental frequency of the input signal. Furthermore, the algorithm behavior is not affected by the input signal distortion and is independent of its initial phase. The performance and excellent behavior of the developed algorithm are evaluated through simulations and experimental tests.
PB Institute of Electrical and Electronics Engineers
SN 0885-8969
SN 1558-0059 (electrónico)
YR 2022
FD 2022
LK https://hdl.handle.net/10272/24911
UL https://hdl.handle.net/10272/24911
LA eng
NO Sanchez-Herrera, R., Andujar, J. M., Marquez, M., Mejias, A., & Gomez-Ruiz, G. (2022). Self-Tuning PLL: A New, Easy, Fast and Highly Efficient Phase-Locked Loop Algorithm. In IEEE Transactions on Energy Conversion (Vol. 37, Issue 2, pp. 1164–1175). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/tec.2021.3126807
NO This paper is framed in the project “Construction, commissioning and testing of a remotely programmable DC / AC inverter prototype that can be used connected to the grid or to power isolated loads” funded by the Andalucía government, PAIDI 2017, call for technology transfer projects.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026