Reduction of Current Ripples due to Current Measurement Errors in a Doubly Fed Induction Generator

Title
Reduction of Current Ripples due to Current Measurement Errors in a Doubly Fed Induction Generator
Author(s)
박귀근[박귀근]황선환[황선환]김장목[김장목]이교범[이교범]이동춘
Keywords
DEAD-TIME COMPENSATION; AC MOTOR-DRIVES; WIND TURBINES
Issue Date
201005
Publisher
KOREAN INST POWER ELECTRONICS
Citation
JOURNAL OF POWER ELECTRONICS, v.10, no.3, pp.313 - 319
Abstract
This paper proposes a new compensation algorithm for the current measurement errors in a DFIG (Doubly Fed Induction Generator). Generally, current measurement path with current sensors and analog devices has non-ideal factors like offset and scaling errors. As a result, the dq-axis currents of the synchronous reference frame have one and two times ripple components of the slip frequency. In this paper, the main concept of the proposed algorithm is implemented by integrating the 3-phase rotor currents into the stationary reference frame to compensate for the measured current ripples in a DFIG. The proposed algorithm has several beneficial features: easy implementation, less computation time, and robustness with regard to variations in the electrical parameters. The effectiveness of the proposed algorithm is verified by several experiments.
URI
http://hdl.handle.net/YU.REPOSITORY/22497
ISSN
1598-2092
Appears in Collections:
공과대학 > 전기공학과 > Articles
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