Environmental Engineering Reference
In-Depth Information
Chapter 4
Gain Scheduled H
'
Control of Wind
Turbines for the Entire Operating Range
Fernando A. Inthamoussou, Fernando D. Bianchi,
Hernán De Battista and Ricardo J. Mantz
Abstract Two different operating modes can be clearly identified in wind turbine
control systems. In low wind speeds, the main control objective is the energy
capture maximization, whereas in high wind speeds it is desired to regulate turbine
power and speed at their rated values. The fulfillment of these different control
objectives implies the transition through low controllability operating conditions
that impose severe constraints on the achievable performance. The control task is
usually tackled using two separate controllers, one for each operating mode, and a
switching logic. Although satisfactory control solutions have been developed for
low and high wind speeds, controller design needs refinement in order to improve
performance in the transition zone. This chapter overviews a control scheme
covering the entire operating range with focus on the transition zone. H
?
and
advanced anti-windup techniques are exploited to design a high performance
control solution for both operating modes with optimum performance in the
transition zone.
Keywords Anti-windup
Gain-scheduling control
H
?
optimal control
Robust
control
Wind turbines control
