A supersynchronous doubly-fed induction generator option for wind turbine application.

摘要

Doubly fed induction generators are presently used in the large majority of high power wind turbine applications. The present technology specifies that the turbine operate sub-synchronously to follow the desired power vs. wind speed profile and to operate only super-synchronously during brief periods where wind gusts exceed the nominal maximum value of thrust. This thesis suggests that improved operation is possible if the generator is confined to always operate in the super-synchronous state resulting in improved efficiency and greater output power.