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Energies 2015, 8(2), 1406-1425; doi:10.3390/en8021406

Tuning of the PI Controller Parameters of a PMSG Wind Turbine to Improve Control Performance under Various Wind Speeds

1
School of Electrical and Computer Engineering, Seoul National University, Seoul 151-744, Korea
2
School of Electrical Engineering, Kookmin University, Seoul 136-702, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Received: 2 January 2015 / Accepted: 2 February 2015 / Published: 13 February 2015
(This article belongs to the Collection Wind Turbines)
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Abstract

This paper presents a method to seek the PI controller parameters of a PMSG wind turbine to improve control performance. Since operating conditions vary with the wind speed, therefore the PI controller parameters should be determined as a function of the wind speed. Small-signal modeling of a PMSG WT is implemented to analyze the stability under various operating conditions and with eigenvalues obtained from the small-signal model of the PMSG WT, which are coordinated by adjusting the PI controller parameters. The parameters to be tuned are chosen by investigating participation factors of state variables, which simplifies the problem by reducing the number of parameters to be tuned. The process of adjusting these PI controller parameters is carried out using particle swarm optimization (PSO). To characterize the improvements in the control method due to the PSO method of tuning the PI controller parameters, the PMSG WT is modeled using the MATLAB/SimPowerSystems libraries with the obtained PI controller parameters. View Full-Text
Keywords: participation factor; permanent magnet synchronous generator wind turbine (PMSG WT); PI controller parameters; small-signal modeling participation factor; permanent magnet synchronous generator wind turbine (PMSG WT); PI controller parameters; small-signal modeling
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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MDPI and ACS Style

Kim, Y.-S.; Chung, I.-Y.; Moon, S.-I. Tuning of the PI Controller Parameters of a PMSG Wind Turbine to Improve Control Performance under Various Wind Speeds. Energies 2015, 8, 1406-1425.

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