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Modelling and Analysing the Hydraulic Variable-Pitch Mechanism for a Variable-Speed Wind Turbine

Modelling and Analysing the Hydraulic Variable-Pitch Mechanism for a Variable-Speed Wind Turbine Modern wind turbines are controlled in varying wind speed by blade pitching for power control. To satisfy the requirement of large driving forces and torques, fast response and high stiffness, hydraulic technology is usually used in the variable-pitch mechanism. The model of the hydraulic variable-pitch mechanism (HVPM) is simplified by a first-order inertia system in most literature. This simplified representation neglects the actual characteristics of the HVPM, and it is not precise and reasonable. Therefore, HVPM modelling is implemented and analyzed in this paper. Simulation results show that consequently the variable-speed wind turbine performs well at above-rated wind speeds. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Wind Engineering SAGE

Modelling and Analysing the Hydraulic Variable-Pitch Mechanism for a Variable-Speed Wind Turbine

Wind Engineering , Volume 31 (5): 12 – Oct 1, 2007

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References (7)

Publisher
SAGE
Copyright
© 2007 SAGE Publications
ISSN
0309-524X
eISSN
2048-402X
DOI
10.1260/030952407783418711
Publisher site
See Article on Publisher Site

Abstract

Modern wind turbines are controlled in varying wind speed by blade pitching for power control. To satisfy the requirement of large driving forces and torques, fast response and high stiffness, hydraulic technology is usually used in the variable-pitch mechanism. The model of the hydraulic variable-pitch mechanism (HVPM) is simplified by a first-order inertia system in most literature. This simplified representation neglects the actual characteristics of the HVPM, and it is not precise and reasonable. Therefore, HVPM modelling is implemented and analyzed in this paper. Simulation results show that consequently the variable-speed wind turbine performs well at above-rated wind speeds.

Journal

Wind EngineeringSAGE

Published: Oct 1, 2007

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