Large-Signal Models of the Park Transformation and Phase-Locked Loop Algorithms
| Autor: | Edhuardo Francisco Celli Grabovski, Samir Ahmad Mussa, Marcelo Lobo Heldwein |
|---|---|
| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Eletrônica de Potência, Vol 29, Pp e202417-e202417 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1414-8862 1984-557X |
| DOI: | 10.18618/REP.2005.1.045052 |
| Popis: | The control of modern grid-connected converters often relies on Park Transform and synchronization algorithms. These are highly nonlinear subsystems integrated into even larger systems that include other nonlinearities. Thus, strictly speaking, large-signal models are required when analysing and designing such systems. However, a limited number of mathematical tools is available to that end. This work proposes a nonlinear time-invariant model for the Park Transformation and the Synchronous Reference Frame Phase-Locked Loop (SRF-PLL), which are based on the Harmonic State-Space (HSS) in a stationary coordinate frame. The HSS modeling technique is reviewed as a basis for nonlinear models of functions based on polynomial nonlinear systems. This serves as an appropriate formal basis for the model of 2-D rotations as means of modeling the SRF-PLL and other similar algorithms. The models are validated through simulations to verify their accuracy when compared to the original Nonlinear Time-Periodic (NLTP) Systems. |
| Databáze: | Directory of Open Access Journals |
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