Pin, G;
Chen, B;
Fedele, G;
Parisini, T;
(2019)
Globally stable tracking and estimation for single-phase electrical signals with DC-offset rejection.
In:
IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society.
(pp. pp. 4663-4668).
IEEE: Lisbon, Portugal, Portugal.
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Abstract
This work introduces a new algorithm, named Global Quadrature PLL (GQPLL) for tracking a sinusoidal signal and for estimating its frequency and amplitude. The proposed technique derives from the well-known PLL architecture based on Quadrature Signal Generation, that is widely used for tracking the fundamental of single-phase electrical signals. The proposed algorithm improves the existing quadrature-PLL solutions from two different perspectives. First, the cancellation of the DC-bias is embedded by construction. Moreover, a Lyapunov-based stability analysis guarantees the global convergence of the estimates for arbitrarily large adaptation gains, enabling fast adaptation transients. Simulations show that the proposed algorithm is able to deal with sudden variations of the fundamental frequency and of the DC-bias magnitude.
| Type: | Proceedings paper |
|---|---|
| Title: | Globally stable tracking and estimation for single-phase electrical signals with DC-offset rejection |
| Event: | 45th Annual Conference of the IEEE Industrial Electronics Society |
| Location: | Lisbon |
| Dates: | 14 October 2019 - 17 October 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/IECON.2019.8927095 |
| Publisher version: | https://doi.org/10.1109/IECON.2019.8927095 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10083604 |
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