Power Control Design for Variable-Speed Wind Turbines

• Main Authors: Francesc Pozo, Mauricio Zapateiro, Ningsu Luo, Leonardo Acho, Yolanda Vidal
• Format: Article
• Language: English
• Published: MDPI AG 2012-08-01
• Series: Energies
• Subjects: wind turbine; variable-pitch; power regulation
• Online Access: http://www.mdpi.com/1996-1073/5/8/3033

This paper considers power generation control in variable-speed variable-pitch horizontal-axis wind turbines operating at high wind speeds. A dynamic chattering torque control and a proportional integral (PI) pitch control strategy are proposed and validated using the National Renewable Energy Laboratory wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Validation results show that the proposed controllers are effective for power regulation and demonstrate high-performances for all other state variables (turbine and generator rotational speeds; and smooth and adequate evolution of the control variables) for turbulent wind conditions. To highlight the improvements of the provided method, the proposed controllers are compared to relevant previously published studies.