Development and Validation of Control Algorithm for Variable Speed Fixed Pitch Small Wind Turbine

Donggeun Jeong, Taesu Jeon, Insu Paek () and Deokjin Lim
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Donggeun Jeong: Department of Integrated Energy and Infra System, Kangwon National University, Engineering Building 6-319, 1 Gangwondaehak-gil, Chuncheon 24341, Gangwon, Republic of Korea
Taesu Jeon: Department of Integrated Energy and Infra System, Kangwon National University, Engineering Building 6-319, 1 Gangwondaehak-gil, Chuncheon 24341, Gangwon, Republic of Korea
Insu Paek: Department of Mechatronics Engineering, Kangwon National University, Engineering Building 6-319, 1 Gangwondaehak-gil, Chuncheon 24341, Gangwon, Republic of Korea
Deokjin Lim: Geum Poong Inc., Seobusanupdo-ro, Jeongeup 56183, Jeollabuk, Republic of Korea

Energies, 2023, vol. 16, issue 4, 1-18

Abstract: In this study, a power control algorithm of a variable-speed fixed-pitch horizontal-axis lift-type 20 kW small wind turbine (SWT) was proposed and verified through dynamic simulations. The power control algorithm proposed in this study consists of algorithms for Region II to track the maximum power coefficient, for Region II-1/2 to maintain the rated rotor speed, and for Region III to maintain the rated power. To verify the proposed power control algorithm, simulations were performed at the rated wind speed and above the rated wind speed, to which turbulence intensity based on the IEC regulation’s normal turbulence model was applied. As a result, it was confirmed that the proposed controller operates properly in the whole three regions including Regions II, II-1/2, and III. The controller performance was then compared with the variable-speed variable-pitch power controller. Although the performance of the proposed controller was considered good for the target VSVP wind turbine, it was lower than that of the conventional controller applied to the same wind turbine. Compared to the VSVP wind turbine, the VSFP wind turbine with the proposed controller was found to have higher mean loads on the blade and the tower but the fatigue loads in terms of Damage Equivalent Load (DEL) were found to be reduced.

Keywords: small wind turbine (SWT); horizontal-axis wind turbine (HWAT); stall control algorithm; pitch control algorithm; blade reverse engineering; variable speed fixed pitch(VSFP) (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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