Revista: | Journal of applied research and technology |
Base de datos: | PERIÓDICA |
Número de sistema: | 000366585 |
ISSN: | 1665-6423 |
Autores: | Dumnic, B1 Katic, V1 Vasic, V1 Milicevic, D1 Delimar, M2 |
Instituciones: | 1Engineering University of Novi Sad, Faculty of Technical Sciences, Novi Sad. Serbia 2University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb. Croacia |
Año: | 2012 |
Periodo: | Oct |
Volumen: | 10 |
Número: | 5 |
Paginación: | 687-697 |
País: | México |
Idioma: | Inglés |
Tipo de documento: | Artículo |
Enfoque: | Experimental, aplicado |
Resumen en inglés | This paper describes an improved sensorless vector control strategy for a squirrel cage induction generator used in variable speed wind energy conversion systems (WECS). The main goal is to design a robust control algorithm immune to generator parameter variations. In order to estimate the rotational speed of the induction generator, a model reference adaptive system (MRAS observer) is used. It is shown that a generator parameter mismatch has a great influence on the rotor speed estimation. In order to estimate the speed accurately, the generator stator resistance must be identified at the same time to correct the mismatched resistance value used in the observer. The proposed rotor speed estimator with parallel stator resistance identification is first verified by computer simulation. Finally, the experiment is conducted in order to verify the obtained simulation results. It is proved that this control scheme can enhance the efficiency of a variable speed WECS |
Disciplinas: | Ingeniería |
Palabras clave: | Ingeniería de control, Ingeniería de energéticos, Generación de energía, Energía eólica, Generadores, Control robusto, Estimación de parámetros |
Keyword: | Engineering, Control engineering, Energy engineering, Energy generation, Eolic energy, Generators, Robust control, Parameters estimation |
Texto completo: | Texto completo (Ver HTML) |