دانلود رایگان مقاله انگلیسی الکترونیک قدرت برای سیستم های تبدیل انرژی باد توان بالا - الزویر 2017

Introduction

Wind energy industry has set new records in terms of installed capacity contributing to about 4% of the world’s net electricity production. The cumulative wind energy capacity escalated from 6100 megawatt (MW) in 1996 to 432,883 MW by the end of 2015. The size of utility-scale wind turbine (WT) is also boosted to 10 MWs (Yaramasu et al., 2015). The WT manufacturers such as Clipper, Sway Turbine, Sinovel, Mitsubishi, GoldWind, Mecal, MingYang, United Power, GE Energy, and Gamesa have announced their future projects in the 10–15 MW class. High-power WTs are proven solutions in the present industry for more wind power extraction with lower installation and maintenance costs in comparison with a group of low-power WTs. The class of wind generators in the present wind energy industry include squirrel-cage induction generator (SCIG), wound rotor induction generator (WRIG), doubly fed induction generator (DFIG), permanent magnet synchronous generator (PMSG), wound rotor synchronous generator (WRSG), and high-temperature-superconducting synchronous generator (HTS-SG). By combining the wind generators with power electronic converters, various configurations for wind energy conversion systems (WECS) have been researched and commercialized over the past 35 years.

Conclusion

In this article, a comprehensive analysis on state-of-the-art and emerging power electronics for high-power Type 1 to 5 WECS is presented. The main features, drawbacks, and commercial applications of each converter are discussed in detail. Grid integration issues for WFs are presented with respect to optimal interconnection of WTs, and HVAC and HVDC transmission systems. The future trends in high-power WECS are discussed. It is anticipated that Type 4 PMSGs will be dominantly used in the future wind energy industry to achieve technical and economic benefits.