Hydraulic systems used for pitch control of wind turbines: a literature overview
نویسندگان
چکیده
منابع مشابه
Control Strategies for Variable-speed Fixed-pitch Wind Turbines
This chapter deals with a design of controllers for variable-speed fixed-pitch wind turbines. The chapter begins with an introduction to wind turbine control and the detail of nonlinear models of the wind energy conversion system (WECS). Linearization around a set of equilibrium points is presented to obtain a linear parameter variable model from a nonlinear system. Open-loop characteristics fo...
متن کاملIndividual pitch control of wind turbines using local inflow measurements
This paper describes a model based control approach for individually adjusting the pitch of wind turbine blades and thereby attenuating the effect of asymmetric wind loads. It is assumed that measurements of local inflow along each blade are available. This effectively provides an estimate of the load distribution along the blades. The load estimates are used in a predictive setup where inflow ...
متن کاملA novel wind speed estimator-integrated pitch control method for wind turbines with global-power regulation
The increasing penetration of wind power has led to a growing interest in that wind turbines (WTs) are operated with global-power regulation, which refers to de-rating and rated power regulation. In this study, the conventional control method is introduced and analyzed. The analysis results show that the conventional control methods may not provide sufficient performance when the WTs are operat...
متن کاملExperimental wind tunnel testing of linear individual pitch control for two-bladed wind turbines
In this paper Linear Individual Pitch Control (LIPC) is applied to an experimental small-scale two-bladed wind turbine. LIPC is a recently introduced Individual Pitch Control (IPC) strategy specifically intended for two-bladed wind turbines. The LIPC approach is based on a linear coordinate transformation, with the special property that only two control loops are required to potentially reduce ...
متن کاملDifferent Types of Pitch Angle Control Strategies Used in Wind Turbine System Applications
The most common controller in wind turbine is the blade pitch angle control in order to get the desired power. Controlling the pitch angle in wind turbines has a direct impact on the dynamic performance of the machine and fluctuations in the power systems. Due to constant changes in wind speed, the wind turbines are of nonlinear and multivariate system. The design of a controller that can ad...
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ژورنال
عنوان ژورنال: IOP Conference Series: Materials Science and Engineering
سال: 2018
ISSN: 1757-899X
DOI: 10.1088/1757-899x/444/4/042013