نتایج جستجو برای: pitch angle controller

تعداد نتایج: 210809  

Journal: :Neural Computing and Applications 2021

Abstract This work focuses on the control of pitch angle wind turbines. is not an easy task due to nonlinearity, complex dynamics, and coupling between variables these renewable energy systems. even harder for floating offshore turbines, as they are subjected extreme weather conditions disturbances waves. To solve it, we propose a hybrid system that combines fuzzy logic deep learning. Deep lear...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2020

2007
Torben Juul Larsen Helge Aagard Madsen Kenneth Thomsen Flemming Rasmussen

During the design of a two-bladed turbine a very important load reducing feature is the teeter mechanism. This mechanism enables a free rigid body motion of the blades relative to the hub in such a way that bending moments between rotor and hub are removed around the teeter axis. Due to the practical issues such as the clearance between blade tip and tower, the teeter angles must be limited as ...

2013
Shu Wang Peter Seiler

Traditional wind turbine control algorithms attempt to maximize power capture at low speeds and maintain rated power at high wind speeds. Active power control refers to a mode of operation where the turbine tracks a desired power reference command. Active power control enables wind farms to perform frequency regulation and to provide ancillary services in the energy markets. This paper presents...

2011
Luis Tupak Aguilar

A control strategy is realized which solve the problem of output power regulation of variable speed wind energy conversion systems by combining a linear control for blade pitch angle with a nonlinear H∞ torque control which mitigate the effects of external disturbances that occur at the input and output of the system. The controller exhibits better power and speed regulation when compared to cl...

Journal: :The Astrophysical Journal 2014

2017
Urs Giger Patrick Kühne Horst Schulte Frede Blaabjerg

Abstract: In this paper, the control scheme of a distributed high-speed generator system with a total amount of 12 generators and nominal generator speed of 7000 min−1 is studied. Specifically, a fault tolerant control (FTC) scheme is proposed to keep the turbine in operation in the presence of up to four simultaneous generator faults. The proposed controller structure consists of two layers: T...

2012
SAMIR ZEGHLACHE DJAMEL SAIGAA

In this paper we present a new design method for the fight control of an autonomous quadrotor helicopter based on fuzzy sliding mode control using backstepping approach. Due to the underactuated property of the quadrotor helicopter, the controller can move three positions (x,y,z) of the helicopter and the yaw angle to their desired values and stabilize the pitch and roll angles. A first-order n...

Journal: :Applied sciences 2021

This paper examines the dynamics and control of a variable blade pitch wind turbine during extreme gust subject to actuators saturation. The mathematical model is derived using Lagrange dynamics. controller formulated Takagi–Sugeno fuzzy utilizes parallel distributor compensator obtain feedback gain. controller’s objective generator electromagnetic torque angle attenuate external disturbances. ...

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