Controller Performance Assessment of a Photovoltaic Generator Terminated in a Current-Mode-Buck-Convertor-Load
| Autor: | Moshe Sitbon, Martin Mellincovsky, Ilan Aharon |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Elektronika ir Elektrotechnika, Vol 25, Iss 3, Pp 56-62 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1392-1215 2029-5731 |
| DOI: | 10.5755/j01.eie.25.3.23677 |
| Popis: | In this paper, a comprehensive control analysis is presented, with emphasis on regulating the terminal voltage of a photovoltaic generator, interfaced with a current mode controlled buck DC-DC converter, which is, in turn terminated by a battery. The combined generator-convertor-load system possesses nonlinear behaviour, and is subject to environmental conditions, thus causing the control task complicated. Additionally, analyses of small signal equations reveal a possible unstable condition. Hence, a new method of designing a controller for worst-case scenario is presented. Additionally, results of implementing a typical linear controller (PI), which can be designed only in reference to a single nominal operation point, revealing a varied responses. Simulation and results of mathematical analysis are presented to verify the proposed method. |
| Databáze: | Directory of Open Access Journals |
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