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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
Title A Study on 3-Phase Balance of Offshore Wind Generator with Dual Inverter System
Authors Jang-Ho Seo
DOI http://dx.doi.org/10.5207/JIEIE.2013.27.6.023
Page pp.23-30
ISSN 1225-1135
Keywords Dual 3-Phase Winding ; Offshore Wind Power Generator ; Inductance ; Permanent Magnet ; FEA
Abstract This paper shows the method of winding connection and the balance of three phase of dual inverter systems used for offshore wind power generator. In order to satisfy low cost manufacturing of large scaled wind generator, the number of slot per pole per phase should be reduced. For this reason, in this research, the number is selected as ‘1’ which is the minimum number that stator can have. Based on the prototype machine, three types of machine for the analysis are selected, and various performances especially in terms of electrically balanced condition are also investigated. Moreover, in this paper, new inductance modeling of dual 3-phase considering cross-coupling between two inverter systems is proposed. The several inductances such as mutual-, synchronous inductances are studied. By using FEA, based on calculated the flux linkage of d and q- axis, the validity of the proposed inductance modeling is confirmed.