Abstract
This paper presents an adaptation of a fundamental frequency estimation scheme based on a fast-tracking PLL-based structure. The approach is based on a modification of the Adaptive Quadratic Signals Generator Phase-Locked Loop, adding a pre-filtering stage in order to attenuate the influence of the time-varying harmonics. The time-domain discretization of the proposed scheme is also presented. A comparison between the proposed scheme and a highly accurate Zero-Crossing scheme is performed under time-varying harmonic operation conditions through experimental measurements. While the later is able to provide only the frequency value, the proposed scheme is able to provide both the frequency value, the fundamental component wave form, and its quadratic companion signal, keeping the same fast-tracking characteristic and presenting a smoother behavior.
| Original language | English |
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| Title of host publication | 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 |
| Place of Publication | Niigata (JPN) |
| Publisher | The Institute of Energy Economics, Japan |
| Pages | 1067-1072 |
| Number of pages | 6 |
| ISBN (Electronic) | 9784886864055 |
| DOIs | |
| Publication status | Published - 22 Oct 2018 |
| Event | 8th International Power Electronics Conference, IPEC- ECCE Asia 2018 - Toki Messe Niigata Convention Center, Niigata, Japan Duration: 20 May 2018 → 24 May 2018 Conference number: 8 http://www.ipec2018.org |
Conference
| Conference | 8th International Power Electronics Conference, IPEC- ECCE Asia 2018 |
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| Abbreviated title | IPEC 2018 ECCE Asia |
| Country/Territory | Japan |
| City | Niigata |
| Period | 20/05/18 → 24/05/18 |
| Internet address |
Funding
Authors would like to thank the Federal University of Juiz de Fora, CAPES and Eindhoven University of Technology for all financial, technical and scientific support on this work.
Keywords
- Frequency-Locked Loop
- Fundamental Component Estimation
- Time-varying Harmonics
- Zero-Crossing