Pitch angle control with fault diagnosis and tolerance for wind turbine generation systems

Shi, Yiran; Li, Shoutao; Wang, Shuangxin; Zhai, Yujia; Tian, Yantao; Yu, Dingli

doi:10.1177/0959651821993689

Cited by 7 publications

(5 citation statements)

References 35 publications

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“…The pitch actuator has bias error because of oil leakage in the hydraulic piston, as well as the pitch actuator getting stuck, caused by valve blockage in the hydraulic actuation system, are the most common faults. They are also the most intensely treated cases of fault-tolerant control of pitch actuators (see, for instance, [169,170]).…”

Section: Pitch Actuators With Fault-tolerant Controlmentioning

confidence: 99%

Pitch Control of Three Bladed Large Wind Energy Converters—A Review

Gambier

2021

Energies

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Modern multi-megawatt wind turbines are currently designed as pitch-regulated machines, i.e., machines that use the rotation of the blades (pitching) in order to adjust the aerodynamic torque, such that the power is maintained constantly throughout a wide range of wind speeds when they exceed the design value (rated wind speed). Thus, pitch control is essential for optimal performance. However, the pitching activity is not for free. It introduces vibrations to the tower and blades and generates fatigue loads. Hence, pitch control requires a compromise between wind turbine performance and safety. In the past two decades, many approaches have been proposed to achieve different objectives and to overcome the problems of a wind energy converter using pitch control. The present work summarizes control strategies for problem of wind turbines, which are solved by using different approaches of pitch control. The emphasis is placed on the bibliographic information, but the merits and demerits of the approaches are also included in the presentation of the topics. Finally, very large wind turbines have to simultaneously satisfy several control objectives. Thus, approaches like collective and individual pitch control, tower and blade damping control, and pitch actuator control must coexist in an integrated control system.

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Section: Pitch Actuators With Fault-tolerant Controlmentioning

confidence: 99%

Pitch Control of Three Bladed Large Wind Energy Converters—A Review

Gambier

2021

Energies

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“…Current research on fault-tolerant control of pitch systems has focused on wind power generation systems. In [33,34], a disturbance observer is used for fault diagnosis and combined adaptive neural networks with sliding mode control to achieve fault-tolerant control. In [35,36], a fault detection and isolation scheme based on a sliding mode observer is proposed for the case where actuator faults exist in both the pitch and drive train systems of a wind turbine.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Control of Tidal Stream Turbines: Non-Singular Fast Terminal Sliding Mode and Adaptive Robust Method

Wang,

Wang

2024

JMSE

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This paper addresses the issues of maximum power point tracking (MPPT) and fault-tolerant control in tidal steam turbines under complex marine environments. In order to solve the conflicting problems in the existing sliding mode control between dynamic performance and chatter reduction as well as the use of fault estimation link in the fault-tolerant control, which increases the system complexity, an adaptive non-singular fast terminal sliding mode and adaptive robust fault tolerance method (ANFTSMC-ARC) is proposed. First, a speed controller equipped with adaptive non-singular fast terminal sliding mode control (ANFTSMC) is designed to improve the power capture efficiency under swell disturbances. This design achieves fast convergence and circumvents the singularity problem. Then, a new reach law is proposed based on the adaptive hybrid exponential reaching law (AHERL), which ensures high tracking performance while reducing chattering. In addition, considering that the hydraulic pitch system is prone to failure, a fault-tolerant controller with automatically adjustable gain is designed under the adaptive robust scheme. With the help of Lyapunov theory, the closed-loop system is proved to be uniform and ultimately bounded. Finally, comparative simulation results verify the efficiency of the proposed control strategy.

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“…This leads to fluctuations in the generator speed and power, causing instability in HAWT system. 1,5,6,9 There are two different methods of FTC, that is, active fault-tolerance control (AFTC) and passive fault-tolerance control (PFTC) 33 . The traditional AFTC is implemented through online fault detection and utilization of the same for the reorganization of the controller based on detected fault.…”

Section: Introductionmentioning

confidence: 99%

Pitch control of electrohydraulic semi-rotary-actuated wind turbine with actuator and valve fault using generalized power-based exponential rate reaching law sliding mode controller

Venkaiah

Sarkar

Chatterjee

2023

Proceedings of the Institution of Mechanical Engineers, Part I:

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Wind power systems comprise complex components and get exposed to harsh environments due to wind speed variations. Researchers in the domain of wind turbine system control are getting more and more attracted to applying sliding mode control, which emerges as an interesting viable option because of its ease of implementation in practice. Design of suitable nonlinear reaching laws in sliding mode control remains an active domain of research which can simultaneously offer fast convergence and improved control performance. This article develops a detailed model of a proportional valve-controlled semi-rotary-actuated wind turbine with valve deadband, valve fault, and actuator fault. Then, the work proposes a generalized power-based exponential rate reaching law-based sliding mode control for pitch control. Detailed derivation of the reaching time for the proposed sliding mode controller with the reaching law has been presented and its stability analysis has been carried out based on Lyapunov theory. Furthermore, the controller performance has been studied as a passive fault-tolerance controller. Extensive performance evaluations have been carried out using benchmark test signals and real wind data, and the superiority of the proposed controller has been demonstrated in comparison to other state-of-the-art sliding mode controls employing a variety of exponential reaching laws and recently proposed wind turbine pitch controller. The proposed generalized power-based exponential rate reaching law-based sliding mode control was able to achieve the lowest integral absolute error value of 0.0014 with real wind data in comparison to the other competing controllers considered here, that is, exponential reaching law-based sliding mode control, exponential rate reaching law-based sliding mode control, constant proportional rate reaching law-based sliding mode control, enhanced exponential reaching law-based sliding mode control, and improved exponential rate reaching law-based sliding mode control, which were able to achieve integral absolute error values of 0.0086, 0.0065, 0.0050, 0.0034, and 0.0015, respectively. Furthermore, the robustness of the proposed generalized power-based exponential rate reaching law-based sliding mode control has been aptly demonstrated with the instantaneous imposition of fault in the actuator.

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Pitch angle control with fault diagnosis and tolerance for wind turbine generation systems

Cited by 7 publications

References 35 publications

Pitch Control of Three Bladed Large Wind Energy Converters—A Review

Pitch Control of Three Bladed Large Wind Energy Converters—A Review

Fault-Tolerant Control of Tidal Stream Turbines: Non-Singular Fast Terminal Sliding Mode and Adaptive Robust Method

Pitch control of electrohydraulic semi-rotary-actuated wind turbine with actuator and valve fault using generalized power-based exponential rate reaching law sliding mode controller

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