Open AccessWind Energy Conversion System from Electrical Perspective—A Survey
Author(s) -
Hyong Sik Kim,
Dylan Dah-Chuan Lu
Publication year - 2010
Publication title -
smart grid and renewable energy
Language(s) - English
Resource type - Journals
eISSN - 2151-4844
pISSN - 2151-481X
DOI - 10.4236/sgre.2008.13017
Subject(s) - wind power , harmonics , flicker , turbine , converters , fault (geology) , power electronics , engineering , electrical engineering , automotive engineering , offshore wind power , power (physics) , electric power system , renewable energy , voltage , mechanical engineering , physics , quantum mechanics , seismology , geology
This paper focuses on the wind energy conversion system (WECS) with the three main electrical aspects: 1) wind turbine generators (WTGs), 2) power electronics converters (PECs) and 3) grid-connection issues. The current state of wind turbine generators are discussed and compared in some criteria along with the trends in the current WECS market, which are ‘Variable Speed’, ‘Multi-MW’ and ‘Offshore’. In addition, the other crucial component in the WECS, PECs will be discussed with its topologies available in the current WECS market along with their modulation strategies. Moreover, three main issues of the WECS associating with the grid-connection, fault-ride through (FRT) capability, harmonics/interharmonics emission and flicker, which are the power quality issues, will be discussed due to the increasing responsibility of WECS as utility power station. Some key findings from the review such as the attractiveness of BDFRG are presented in the conclusion of this paper