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Improvement of small wind turbine control in the transition region
(MDPI, 2020)
Wind energy conversion systems are very challenging from the control system viewpoint. The control difficulties are even more challenging when wind turbines are able to operate at variable speed and variable pitch. The ...
Iterative design of centralized PID controllers based on equivalent loop transfer functions and linear programming
(IEEE Access, 2021)
This paper deals with the design problem of multivariable Proportional-Integral-Derivative (PID) controllers for square and stable multivariable processes when a linear margin at the Nyquist plot is considered as robustness ...
Reflection-aware generation and identification of square marker dictionaries
(MDPI, 2022)
Square markers are a widespread tool to find correspondences for camera localization because of their robustness, accuracy, and detection speed. Their identification is usually based on a binary encoding that accounts for ...
Analysis of adaptive individual pitch control schemes for blade fatigue Load reduction on a 15 MW wind turbine
(MDPI, 2024)
Individual pitch control (IPC) is a method to mitigate periodic blade loads in wind turbines, and it is typically implemented using the multi-blade coordinate (MBC) transform, which converts the blade load measurements ...
Stiction compensation for low-cost electric valves
(Elsevier, 2023)
Nonlinear dynamics of control valves, such as stiction, can produce significant performance degradation in the control loops where they are involved. There are several works in the literature describing and modelling these ...
Multi-objective optimization for simultaneously designing active control of tower vibrations and power control in wind turbines
(Elsevier, 2023)
For wind turbines operating in the full load region, stabilizing the generated power at its nominal value is a key objective. Furthermore, the control of tower vibrations is a major constraint in wind turbine structures ...
Adaptive Pitch Controller of a Large-Scale Wind Turbine Using Multi-Objective Optimization
(MDPI, 2021)
This paper deals with the control problems of a wind turbine working in its nominal zone. In this region, the wind turbine speed is controlled by means of the pitch angle, which keeps the nominal power constant against ...
Iterative Method for Tuning Multiloop PID Controllers Based on Single Loop Robustness Specifications in the Frequency Domain
(MDPI, 2021)
Multiloop proportional-integral-derivative (PID) controllers are widely used for controlling multivariable processes due to their understandability, simplicity and other practical advantages. The main difficulty of the ...