Enhanced torque control for horizontal-axis wind turbines
via disturbance observer assistance

Enhanced torque control for horizontal-axis wind turbines
via disturbance observer assistance

Active disturbance rejection
control
Disturbance compensation
Energy capture maximization
Extended-state observer
Observer assistance
Wind turbines

This paper presents an enhanced control strategy for optimizing energy capture
in horizontal axis wind turbines operating in the partial-load region (region
2). The proposed approach builds upon conventional standard torque control
(STC) by incorporating a generalized extended state observer (GESO) that
follows the active-disturbance-rejection paradigm. Although traditional torque
control methods have proven effective under steady wind conditions, they often
lack robustness against disturbances, system faults, and model uncertainties inherent
in wind energy systems. The proposed observer-assisted control scheme
addresses these limitations by estimating and compensating for total disturbance
signals, including non-modeled dynamics, parameter uncertainties, and actuator
faults. The effectiveness of the proposed control strategy is validated through
comprehensive simulations using a 5 MW wind turbine model subjected to realistic
operational conditions. Simulation scenarios include turbulent wind speed
profiles and actuator degradation to assess controller performance. The results
demonstrate improved robustness and energy capture efficiency compared to the
conventional control approach, while maintaining the simplicity of the implementation.
This work contributes to the development of more reliable wind energy
conversion systems (WECSs) by offering a practical solution that improves
both performance and fault tolerance in partial load operation.

Edwin Villarreal-L´opez1,2, Horacio Coral-Enriquez2, Sergio Tamayo-Le´on3

Journal homepage: http://journal.uad.ac.id/index.php/TELKOMNIKA

Aug 1, 2025

PERI IRAWAN

PDF

ENGLISH

TEXT