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Open AccessArticle

Adaptive Disturbance Observer-Based Parameter-Independent Speed Control of an Uncertain Permanent Magnet Synchronous Machine for Wind Power Generation Applications

1
The Research Institute of EIT, Ajou University, Woncheon-dong, Gyeonggi-do, Yeongtong-gu, Suwon 443-749, Korea
2
The Department of EIE, SeoulTech., Seoul National University of Technology, Gongnung-dong 172, Nowon-gu, Seoul 139-743, Korea
3
The Department of Mechanical Engineering, Kunsan Nat'l University, Miryong-dong, Gunsan-si, Jeollabuk-do, Jeolla-do 573-701, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Energies 2015, 8(5), 4496-4512; https://doi.org/10.3390/en8054496
Received: 28 February 2015 / Revised: 7 May 2015 / Accepted: 12 May 2015 / Published: 19 May 2015
This paper proposes a parameter-independent speed controller based on the classical cascade speed control strategy comprising an inner-loop current controller and an outer-loop speed controller for permanent magnet synchronous machines. The contribution of this paper is three-fold: the first is the proposal of a parameter-independent current controller in the inner loop with global asymptotic stability guarantee; the second is the presentation of a guideline for choosing stabilizing proportional-integral (PI) gains in the outer loop; and the third is designing an adaptive disturbance observer (ADOB) to predict the one step ahead state, so that this predicted state compensates the one-step time delay on the control input. The effectiveness of the proposed controller is demonstrated by simulating a wind power generation application using powerSIM (PSIM) software. View Full-Text
Keywords: cascade speed control; permanent magnet synchronous machine; parameter uncertainty; adaptive disturbance observer; wind power generation cascade speed control; permanent magnet synchronous machine; parameter uncertainty; adaptive disturbance observer; wind power generation
MDPI and ACS Style

Kim, S.-K.; Song, H.; Lee, J.-H. Adaptive Disturbance Observer-Based Parameter-Independent Speed Control of an Uncertain Permanent Magnet Synchronous Machine for Wind Power Generation Applications. Energies 2015, 8, 4496-4512.

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