Towards robust controller design using $$\mu $$-synthesis approach for speed regulation of an uncertain wind turbine

Ravikumar, N.; Saraswathi, G.

doi:10.1007/s00202-019-00891-w

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…In this regard, emphasizing the modeling of the wake effect under uncertainties of the condition of wind parameters to capture maximum power from the wind at varying atmospheric conditions is carried out by Michael (2021). Modeling the wind turbine system by taking the perturbed pitch angle of the blade with the speed of wind about the generator rotor speed is described by Ravikumar and Saraswathi (2020). In this article, the two authors emphasized the control approach of the generator rotor speed while the effects of uncertainties toward the improvement of power output are lacking.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the effect of parametric uncertainty on dynamic performances of doubly fed induction generator-based wind energy conversion system

Haile,

Tuka

2023

Wind Engineering

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The wind, stochastic in nature, is one of the fastest-growing and most promising renewable energy resources in the entire world. Thus, this paper investigates the influence of parameter uncertainties upon a dynamic performance of a grid-tied Doubly-Fed Induction Generator (DFIG)-based Wind Energy Conversion System (WECS). The main uncertain parameters found in the study are mutual and rotor winding reactances which occurred due to the variation of the angular positions of the rotor caused by varying wind speeds. The variation in the wind speed caused the generator rotor speed to deviate between 25% and 150%. Consequently, the rotor winding reactance of DFIG changes from its nominal value of 1.31 mΩ to between 0.983 and −0.655 mΩ; and the mutual reactance from its nominal value of 0.941 Ω to between 0.758 and −0.4708 Ω. As a result, the stator and rotor winding voltages and currents of the DFIG are uncertain.

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Section: Introductionmentioning

confidence: 99%

Analysis of the effect of parametric uncertainty on dynamic performances of doubly fed induction generator-based wind energy conversion system

Haile,

Tuka

2023

Wind Engineering

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Linear parameter varying μ synthesis robust control of CDC semi‐active suspension system for nonlinearity and uncertainty

Kou,

Li,

Yang

2024

Asian Journal of Control

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Because the continuous damping control (CDC) semi‐active suspension system has complex nonlinear and uncertain characteristics that can significantly affect the performance of the system. And in the controller design process, achieving a balance of multiple performance objectives is often difficult. Therefore, this paper designs a linear parameter varying (LPV) μ synthesis robust controller for the vibration suppression and multi‐objective control of a 7‐degree‐of‐freedom (7‐DOF) vehicle suspension system equipped with CDC dampers. Firstly, the nonlinear force model of the solenoid valve CDC damper is developed based on the actual damping variation. Considering the nonlinear forces of the coil springs, the nonlinear model of the 7‐DOF suspension system is expressed as LPV form. Further, the linear fractional transformation (LFT) method is used to analyze and reconstruct the system model for multiple parameter uncertainties of the suspension. The actuator time delays are also simulated through a frequency domain transfer function, which is considered to be an unmodeled dynamic at the input of the system. Finally, an LPV‐μ synthesis robust controller based on nonlinearity and mixed uncertainty is designed to improve car ride comfort and achieve the best relationship between comfort and handling stability. Simulation and experimental results under random disturbance conditions show that the LPV‐μ synthesis controller has better anti‐jamming performance and controllability compared to the H∞ controller and μ synthesis controller.

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A Linear Quadratic Integral Regulator for a Variable Speed Wind Turbine

Ravikumar¹,

Manoj²,

Nuvvula

2022

Advances in Sustainability Science and Technology

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Towards robust controller design using $$\mu $$-synthesis approach for speed regulation of an uncertain wind turbine

Cited by 7 publications

References 15 publications

Analysis of the effect of parametric uncertainty on dynamic performances of doubly fed induction generator-based wind energy conversion system

Analysis of the effect of parametric uncertainty on dynamic performances of doubly fed induction generator-based wind energy conversion system

Linear parameter varying μ synthesis robust control of CDC semi‐active suspension system for nonlinearity and uncertainty

A Linear Quadratic Integral Regulator for a Variable Speed Wind Turbine

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