On the dynamics of the pitch control loop in horizontal-axis large wind turbines

Suryanarayanan, Shashikanth; Dixit, Ankit

doi:10.1109/acc.2005.1470037

Cited by 22 publications

(13 citation statements)

References 4 publications

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“…Many of these models are developed analytically by linearizing a turbine model at a particular operating point using blade element momentum (BEM) theory to determine aerodynamic loads and the method of assumed modes [20] to model turbine flexure. Another method is to model the turbine as a system of rigid bodies with flexible linkages [21] (an approach that may also use BEM for aerodynamic loads).…”

Section: Regions Of Operation and Linear Modelsmentioning

confidence: 99%

Control of wind turbines: Past, present, and future

Laks

Pao

Wright

2009

2009 American Control Conference

203

133

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Abstract-We review the objectives and techniques used in the control of horizontal axis wind turbines at the individual turbine level, where controls are applied to the turbine blade pitch and generator. The turbine system is modeled as a flexible structure operating in the presence of turbulent wind disturbances. Some overview of the various stages of turbine operation and control strategies used to maximize energy capture in below rated wind speeds is given, but emphasis is on control to alleviate loads when the turbine is operating at maximum power. After reviewing basic turbine control objectives, we provide an overview of the common basic linear control approaches and then describe more advanced control architectures and why they may provide significant advantages.

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Section: Regions Of Operation and Linear Modelsmentioning

confidence: 99%

Control of wind turbines: Past, present, and future

Laks

Pao

Wright

2009

2009 American Control Conference

203

133

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“…These values depend on the damping ratio and natural frequency of the wind turbine system. The above transfer 978-1-4244-8782-0/11/$26.00 ©2011 IEEE function was evaluated for various turbine configurations and operating conditions [1]. This paper used a three type of large wind turbine generation system from the FAST.…”

Section: The Lwtg System Modelingmentioning

confidence: 99%

“…Recently, researches have focused on large wind turbines, which are typically massive structures with enormous blade spans [1].With the enlargement of wind turbine generating capacity, it is vital to develop feasible, reliable and powerful control strategies in the wind energy conversion systems to achieve maximum power performance. When the wind speed is below nominal, the main concern is how to control the operational speed for turbine to extract maximum energy.…”

Section: Introductionmentioning

confidence: 99%

Design of adaptive PID for pitch control of large wind turbine generator

Kim

Jeon

Heo

2011

2011 10th International Conference on Environment and Electrical Engineering

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Pitch control system plays an important role in large wind turbine generator (LWTG) because of the direction and intensity of wind is changing every moment. Therefore, the system of pitch control is difficult to be set up the tuning parameters of controller. Conventional PID controller is not suit for all operating point. Because, tuning parameters of conventional PID controller are not consistently changed. In this paper, a self tuning PID control method using reinforcement learning is proposed the pitch control of large wind turbine generator (LWTG). Actor-Critic learning is used to tune PID parameters in an adaptive way by taking advantage of the modelfree and on-line learning properties of reinforcement learning effectively. Also proposed controller includes the improved integral control action. Therefore, the robust control of LWTG is studied utilizing the new adaptive PID (NAPID) controller in this paper. This structure is composed with new type of integral control action and Actor-Critic learning part. The improved integral control has concept of error window and weight function concept. The performance of newly proposed adaptive PID controller is compared with those of conventional ones via Matlab SIMULINK simulation.

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“…The Linear force to be applied to pusher plate is calculated with the help of Blade Element Momentum theory [5], [6]. Accordingly, blade is divided into smaller parts and torque required to rotor selected part in given wind condition is calculated.…”

Section: A Rating Of DC Motormentioning

confidence: 99%

Design, implementation and control of pitching system for low-power wind turbine

Bangade

Saptasagar

Kurode

2014

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)

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This paper presents design and development of novel pitch control mechanism for low power wind turbine (WT). Indigenously designed pitching system for WT and its fabrication is discussed in detail in this paper. Wind velocity does not remain constant throughout. In order to extract non fluctuating electric power from the WT, it is essential to have proper control system in place. Optimization of energy extraction from WT largely depend upon blades' shape and pitch angle. Here pitch angle mechanism and its control is focused. Existing low power WT have fixed pitch. The main reason being the cost and complexity. Here, design of relatively simple and low cost pitching mechanism is attempted. PID controller is developed for implementation of pitch control. It is validated in simulation. Microcontroller is used to support necessary control hardware.

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On the dynamics of the pitch control loop in horizontal-axis large wind turbines

Cited by 22 publications

References 4 publications

Control of wind turbines: Past, present, and future

Control of wind turbines: Past, present, and future

Design of adaptive PID for pitch control of large wind turbine generator

Design, implementation and control of pitching system for low-power wind turbine

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