Star-Delta Switches Evaluation for Use in Grid-Connected Wind Farm Installations
Author(s) -
Fokianou Panagiota,
Samarakou Maria,
Kandris Dionisis,
Fylladitakis Emmanouil D.
Publication year - 2014
Publication title -
advances in mechanical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.318
H-Index - 40
ISSN - 1687-8132
DOI - 10.1155/2014/893183
Subject(s) - grid connection , star (game theory) , grid , wind power , inertia , generator (circuit theory) , wind speed , engineering , automotive engineering , electrical engineering , computer science , power (physics) , physics , meteorology , mathematics , geometry , classical mechanics , quantum mechanics , astrophysics
Electrical generators are designed to perform best under permanent rotation velocity and fixed loads conditions. However, such ideal conditions are not practically feasible during the operation of real wind turbines. Generally, the voltage output of electrical generators can be regulated without redesigning the electrical or/and mechanical parts constituting such a system, by simply changing the connection of the generator to the grid from Star to Delta or by using combined windings. The present work attempts to investigate the behavior of grid-connected wind turbines with Star-Delta, Delta, and Star connection switches in a variety of simulation scenarios, by taking into consideration the influence of both internal and external factors such as the inertia factor and the wind speed.
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