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

Seok-Kyoon Kim, Hwachang Song and Jang-Ho Lee
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Seok-Kyoon Kim: The Research Institute of EIT, Ajou University, Woncheon-dong, Gyeonggi-do, Yeongtong-gu, Suwon 443-749, Korea
Hwachang Song: The Department of EIE, SeoulTech., Seoul National University of Technology, Gongnung-dong 172, Nowon-gu, Seoul 139-743, Korea
Jang-Ho Lee: The Department of Mechanical Engineering, Kunsan Nat'l University, Miryong-dong, Gunsan-si, Jeollabuk-do, Jeolla-do 573-701, Korea

Energies, 2015, vol. 8, issue 5, 1-17

Abstract: 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.

Keywords: cascade speed control; permanent magnet synchronous machine; parameter uncertainty; adaptive disturbance observer; wind power generation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2015
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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