학술논문

A disturbance decoupling nonlinear control law for variable speed wind turbines
Document Type
Conference
Source
2007 Mediterranean Conference on Control & Automation Control & Automation, 2007. MED '07. Mediterranean Conference on. :1-6 Jun, 2007
Subject
Robotics and Control Systems
Computing and Processing
Signal Processing and Analysis
Wind turbines
Wind energy generation
Power generation
Sliding mode control
Wind speed
Torque control
Linear feedback control systems
Fluctuations
Aerodynamics
Blades
Language
Abstract
This paper describes a nonlinear control law for controlling variable speed wind turbines using feedback linearization. The novel aspect of the control law is its ability to decouple the effect of wind fluctuations. Furthermore, the transformation to feedback linearizable coordinates is chosen intelligently so that the majority of the system structure is invariant under the transformation. Consequently the physical interpretation is preserved. The method assumes that the effective wind speed and acceleration are estimated from measurements on the wind turbine. The performance of the control is compared to that of a LQG controller using a specific wind turbine and wind model.