NDLI: Application of electrical variable transmission in wind power generation system

Content Provider	IEEE Xplore Digital Library
Author	Xikai Sun Ming Cheng Wei Hua Longya Xu
Copyright Year	2010
Description	Author affiliation: School of Electrical Engineering School of Electrical Engineering, Southeast University Southeast University, Nanjing 210096, China (Xikai Sun; Ming Cheng; Wei Hua) \|\| Department of Electrical Engineering, Southeast University The Ohio State University, Columbus 43210, USA (Longya Xu)
Abstract	In the widely applied non-direct driven wind power generation system, a gearbox is connected between the wind turbine and the high speed doubly-fed induction generator (DFIG) so that the system could be smaller and supply power with constant voltage and constant frequency as the wind turbine speed varies. However, the multi-level mechanical gearbox is rather vulnerable and poses many difficulties to maintain. Electrical variable transmission (EVT), an electrical continuous variable gearbox, is a very competitive alternative for vulnerable constant speed-ratio mechanical gearbox. In this paper, the application of EVT in wind power generation system with its unique power conversion characteristics is presented. EVT machine structures and the main principles of the EVT-based wind power generation system are introduced. Unique power conversion characteristics of the EVT-based system are investigated and compared among the conventional DEIG system and direct-driven permanent magnet generator (PMG) system. A controller without maximum power point tracking (MPPT) control to the outer rotor is implemented in Matlab/Simulink and speed sensorless control of the inner rotor is tested. The operational principle and the operation modes are evaluated by computer simulation and system experiments.
Starting Page	1529
Ending Page	1536
File Size	852617
Page Count	8
File Format	PDF
ISBN	9781424452866
DOI	10.1109/ECCE.2010.5618236
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wind speed Rotors Wind power generation Wind power application Generators Wind turbines Electrical variable transmission (EVT) Load flow Energy storage
Content Type	Text
Resource Type	Article

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