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Electronics 2018, 7(4), 48; https://doi.org/10.3390/electronics7040048

Robust Offset-Free Speed Tracking Controller of Permanent Magnet Synchronous Generator for Wind Power Generation Applications

1
Department of Creative Convergence Engineering, Hanbat National University, Daejeon 341-58, Korea
2
Department of Electrical and Computer Engineering, Ajou University, Suwon 443-749, Korea
*
Author to whom correspondence should be addressed.
Received: 16 March 2018 / Revised: 2 April 2018 / Accepted: 3 April 2018 / Published: 4 April 2018
(This article belongs to the Special Issue Renewable Electric Energy Systems)
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Abstract

This article presents a robust speed tracking algorithm for a permanent magnet synchronous generator utilized for wind power generation systems, considering the machine parameter and load uncertainties. There are two major contributions: (a) a disturbance observer is designed to exponentially estimate disturbances from the model-plant mismatches and severe load torque variations, and (b) it is included in a nonlinear cascade-type proportional speed tracking controller to establish the performance recovery and offset-free properties without the use of tracking error integrators. A simulation result numerically verifies the effectiveness of the proposed technique, where the PowerSIM software emulates a wind power generation system. View Full-Text
Keywords: permanent magnet synchronous machine; wind power generation; speed tracking algorithm; performance recovery; offset-free permanent magnet synchronous machine; wind power generation; speed tracking algorithm; performance recovery; offset-free
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Kim, S.-K.; Lee, K.-B. Robust Offset-Free Speed Tracking Controller of Permanent Magnet Synchronous Generator for Wind Power Generation Applications. Electronics 2018, 7, 48.

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