A simple control scheme for variable speed wind turbines

Zinger, D.S.; Muljadi, Eduard; Miller, Anna

doi:10.1109/ias.1996.559284

Cited by 16 publications

(7 citation statements)

References 5 publications

(1 reference statement)

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“…x ¼ 4:1; h ¼ 10:2; d ¼ 7:9 (16) Corresponding root locus plot of the WT system, after applying the modified PID controller is shown in Fig. 8 (blue dashed line).…”

Section: Design Of Modified Classical Pid Controllermentioning

confidence: 99%

“…In the early studies, classical P/PI/PID pitch angle controllers based on linearized models of the WT have been implemented [5,15e17]. In these works, WT control design based on experimental models [15], a simple control scheme for variable speed WTs [16] and a comparison of nonlinear and linear model-based designs for variablespeed WT [17] have been studied.…”

Section: Introductionmentioning

confidence: 99%

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Robust control of the variable speed wind turbines in the presence of uncertainties: A comparison between H∞ and PID controllers

Moradi

Vossoughi

2015

Energy

123

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“…x ¼ 4:1; h ¼ 10:2; d ¼ 7:9 (16) Corresponding root locus plot of the WT system, after applying the modified PID controller is shown in Fig. 8 (blue dashed line).…”

Section: Design Of Modified Classical Pid Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Robust control of the variable speed wind turbines in the presence of uncertainties: A comparison between H∞ and PID controllers

Moradi

Vossoughi

2015

Energy

123

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“…Thus, Cp is considered a function of tip speed ratio, λ, and blade pitch angle, β (deg). Numerical approximations have been developed to calculate Cp for given values of λ and β [11][12][13][14][15][16]. For the considered 12.7 kW wind turbine, in particular, the formalization for computing the corresponding Cp value as a function of λ and β as,…”

Section: Mathematical Modeling Of Wind Turbines Characteristicsmentioning

confidence: 99%

“…As described in Fig. 6, the primary control objective is to ensure that the mechanical loads on the turbine structure are maintained within its withstand capability limit [9][10][11][12][13][14]. This means that the pitch control is primarily used to limit the aerodynamic power above rated wind (Vr) speed in order to keep the turbine shaft torque within its design limits.…”

Section: Pitch Control Mechanismmentioning

confidence: 99%

A Real Time Emulator of Variable Pitch Wind Turbines Using Torque-Controlled Induction Motors

Kawady

Mansour

2012

ERJ. Engineering Research Journal

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Owing to the technical difficulties of experimental investigations of real wind turbines, Wind Turbine Emulator (WTE) plays a role for performing such experimental tasks. This facilitates to conduct advanced research efforts for wind energy conversion system applications without reliance on natural wind resources. In this paper, a WTE (able to emulate the steady-state and dynamic wind turbine behavior) is experimentally developed. This represents a chance to validate not only the behavior of the proposed controllers, but also to extensively evaluate the properness of their developed dynamic models as well. For this aim, a motor generator set based two induction motors and Digital Signal Possessing (DSP) board were used to develop the WTE in order to simulate the aerodynamic characteristics of fixed speed-variable pitch wind turbine. The response of the proposed WTE during wind speed variations and the behavior of its related pitch controller are tested and recorded. All presented test results corroborated the efficacy of the developed WTE for profiling the dynamic behavior of variable pitch turbines for analyzing wind farm applications.

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“…In the early studies, the classical P/PI/PID pitch angle controllers based on linearized models have been implemented [7][8][9][10]. In those studies, however, wind turbine control design is based on experimental models [11].…”

Section: Introductionmentioning

confidence: 99%

Variable Speed Control of Wind Turbines Based on the Quasi-Continuous High-Order Sliding Mode Method

et al. 2017

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Abstract:The characteristics of wind turbine systems such as nonlinearity, uncertainty and strong coupling, as well as external interference, present great challenges in wind turbine controller design. In this paper, a quasi-continuous high-order sliding mode method is used to design controllers due to its strong robustness to external disturbances, unmodeled dynamics and parameter uncertainties. It can also effectively suppress the chattering toward which the traditional sliding mode control method is ineffective. In this study, the strategy of designing speed controllers based on the quasi-continuous high order sliding mode method is proposed to ensure the wind turbine works well in different wind modes. First, the plant model of the variable speed control system is built as a linearized model; and then a second order speed controller is designed for the model and its stability is proved. Finally, the designed controller is applied to wind turbine pitch control. Based on the simulation results from a simulation of 1200 s which contains almost all wind speed modes, it is shown that the pitch angle can be rapidly adjusted according to wind speed change by the designed controller. Hence, the output power is maintained at the rated value corresponding to the wind speed. In addition, the robustness of the system is verified. Meanwhile, the chattering is found to be effectively suppressed.

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A simple control scheme for variable speed wind turbines

Cited by 16 publications

References 5 publications

Robust control of the variable speed wind turbines in the presence of uncertainties: A comparison between H∞ and PID controllers

Robust control of the variable speed wind turbines in the presence of uncertainties: A comparison between H∞ and PID controllers

A Real Time Emulator of Variable Pitch Wind Turbines Using Torque-Controlled Induction Motors

Variable Speed Control of Wind Turbines Based on the Quasi-Continuous High-Order Sliding Mode Method

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