Hybrid Wind-Diesel System for Remote and Isolated Areas

摘要

Isolated hybrid wind-diesel system with double fed induction generator based wind turbine and adjustable speed diesel generation unit with permanent magnet generator is presented. Wind turbine equipped with electronics converter is able to operate in standalone mode without support of diesel generation unit, if there is enough wind energy. Deficit of wind energy causes, that diesel generation unit is enabled. However, wind and load variations cause the engine load fluctuates and to obtain the best efficiency, engine speed is adjusted to the load. Standardization of AC generated voltage is provided by the power electronics converter connected to the rotor of DFIG. Limited power diesel generation unit is coupled with wind turbine on the DC side. Optional energy storage system can be used for improvement of voltage quality during transient states.