An Improved Control Method for a DFIG in a Wind Turbine under an Unbalanced Grid Voltage Condition

Title
An Improved Control Method for a DFIG in a Wind Turbine under an Unbalanced Grid Voltage Condition
Author(s)
이솔빈[이솔빈]이교범[이교범]이동춘김장목[김장목]
Keywords
FED INDUCTION GENERATOR; DIRECT POWER-CONTROL
Issue Date
201011
Publisher
KOREAN INST ELECTR ENG
Citation
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.5, no.4, pp.614 - 622
Abstract
This paper presents a control method, which reduces the pulsating torque and DC voltage problems of a doubly fed induction generator (DFIG)-based wind turbine system. To reduce the torque and power ripple, a current control scheme consisting of a proportional integral (PI) controller is presented in a positive synchronously rotating reference frame, which is capable of providing precise current control for a rotor-side converter with separated positive and negative components. The power theory can reduce the oscillation of the DC-link voltage in the grid-side converter. In this paper, the generator model is examined, and simulation results are obtained with a 3 kW DFIG-based wind turbine system to verify the proposed control strategy.
URI
http://hdl.handle.net/YU.REPOSITORY/23340http://dx.doi.org/10.5370/JEET.2010.5.4.614
ISSN
1975-0102
Appears in Collections:
공과대학 > 전기공학과 > Articles
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