Mi Tang
A Novel Phase-lock Loop with Feed-back Repetitive Controller for Robustness to Periodic Disturbance in Three-phase Systems
Tang, Mi; Bifaretti, Stefano; Pipolo, Sabino; Odhano, Shafiq; Zanchetta, Pericle
Authors
Stefano Bifaretti
Sabino Pipolo
Shafiq Odhano
PERICLE ZANCHETTA pericle.zanchetta@nottingham.ac.uk
Professor of Control Engineering
Abstract
While power networks evolve towards the new concept of smart grids, with the proliferation of power electronics embedded systems and distributed generation, the insurgence of system unbalance and voltage harmonic distortion, become more and more frequent. Also, often a noisy voltage sampling system can produce offsets in measurements. Such imperfections bring challenges to the phase identification using a traditional phase-lock loop (PLL), utilized in the control of all grid connected converters. However, since the imperfections lead to periodic harmonics in the corresponding dq-axis voltages, the repetitive controller (RC) can be useful for harmonic suppression. This paper presents a three-phase PLL using a feed-back RC. Specially, a novel running mean filter has been added to minimize the interaction between RC and the Proportional-Integral (PI) controller in the PLL. Simulation results show that the proposed PLL can track the phase of the three-phase voltage without being influenced by harmonic distortion.
Citation
Tang, M., Bifaretti, S., Pipolo, S., Odhano, S., & Zanchetta, P. (2018). A Novel Phase-lock Loop with Feed-back Repetitive Controller for Robustness to Periodic Disturbance in Three-phase Systems. In 2018 IEEE Energy Conversion Congress and Exposition (ECCE) (2691-2697). https://doi.org/10.1109/ECCE.2018.8557691
Conference Name | 2018 IEEE Energy Conversion Congress and Exposition (ECCE) |
---|---|
Conference Location | Portland, OR |
Start Date | Sep 23, 2018 |
End Date | Sep 27, 2018 |
Acceptance Date | Apr 12, 2018 |
Online Publication Date | Dec 6, 2018 |
Publication Date | Sep 23, 2018 |
Deposit Date | Feb 18, 2019 |
Publicly Available Date | Feb 18, 2019 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 2691-2697 |
Book Title | 2018 IEEE Energy Conversion Congress and Exposition (ECCE) |
ISBN | 9781479973132 |
DOI | https://doi.org/10.1109/ECCE.2018.8557691 |
Public URL | https://nottingham-repository.worktribe.com/output/1563329 |
Publisher URL | https://ieeexplore.ieee.org/document/8557691 |
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A Novel Phase-lock Loop With Feed-back Repetitive Controller For Robustness To Periodic Disturbance In Three-phase Systems
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