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Modern wind turbines operate with variable speed and most of them are based on doubly fed induction generators (DFIG), with a back-to-back power converter. During voltage dips, the stator terminals can cause overcurrents in the rotor windings, which could threaten the converter integrity. The use of crowbar systems is the most common technique to avoid this situation. The crowbar activation disables...
Nowadays, wind power is one of the most used renewable energy sources due to its economic possibilities. Consequently, penetration of wind turbines in electrical power systems has increased and they may influence overall power system behavior. It is therefore important to study the performance of wind turbines in electrical power systems and their interaction with other generation equipment and loads...
Recently, the interest in the use of wind energy has increased considerably in the world's energy markets. In the same way there is a visibly tendency in distributed generation due to market deregulation, technological advances, governmental incentives and environment impact concerns. Considering these facts, it is important to understand the different impacts of using wind generation on several technical...
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