Fast adaptive back-stepping terminal sliding mode power control for both the rotor-side as well as grid-side converter of the doubly fed induction generator-based wind farms

2016 ◽  
Vol 10 (5) ◽  
pp. 598-610 ◽  
Author(s):  
R.K. Patnaik ◽  
P.K. Dash
Keyword(s):  
Power Control ◽  
Sliding Mode ◽  
Wind Farms ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Terminal Sliding Mode ◽  
Doubly Fed ◽  
Grid Side ◽  
Grid Side Converter

The robustness assessment of doubly fed induction generator-wind turbine during short circuit

2019 ◽  
Vol 31 (4) ◽  
pp. 570-582 ◽  
Author(s):  
Muhammad Shahzad Nazir ◽  
Ahmed N Abdalla
Keyword(s):  
Short Circuit ◽  
Wind Farms ◽  
Superior Performance ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Point Of Common Coupling ◽  
Common Coupling ◽  
Doubly Fed ◽  
Grid Side ◽  
Grid Side Converter

Energy sources, such as wind, solar, hydro, etc., are an important source of energy, and wind power generators are important energy conversion machines. The doubly fed induction generator has wide industrial and commercial applications due to its superior performance, combined with fault and eco-friendly properties. However, the fault current dynamics of wind farms identify the potential impacts of fault currents and the voltage on the protection. This study focuses on wind farms (employing doubly fed induction generators) perturbation during symmetrical (three-phase) symmetrical short circuit (SSC) at different points. The detail of analyzing the doubly fed induction generator (DFIG) performance during transient conditions, control and modeling is studied in this paper. These two points are selected as grid-side converter and point of common coupling, respectively. These comparison results fetched the more precise understanding of the fault diagnosis reliability with reduced complexity, stability, and optimization of the system. The present findings illustrated the main difference between point of common coupling and grid-side converter under SSC faults and the robustness of these two mentioned points.

scholarly journals Improved Performance of DFIG-generators for Wind Turbines Variable-speed

2018 ◽  
Vol 9 (4) ◽  
pp. 1875
Author(s):  
Ihedrane Yasmine ◽  
El Bekkali Chakib ◽  
Bossoufi Badre
Keyword(s):  
Sliding Mode Control ◽  
Sliding Mode ◽  
System Stability ◽  
Control Technique ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Mode Control ◽  
Dc Bus ◽  
Doubly Fed ◽  
Grid Side

<span lang="EN-US">The following article presents the control of the power generated by the Doubly Fed Induction Generator, integrated into the wind system, whose rotor is linked to the power converters (Rotor Side Convert (RSC) and Grid Side Converter (GSC)) interfaced by the DC-BUS and connected to the grid via a filter (Rf, Lf) in order to obtain an optimal power to the grid and to ensure system stability. The objective of this study is to understand and to make the comparison between Sliding mode Control technique and the Flux Oriented Control in order to control the Doubly Fed Induction Generator powers exchanged with the grid, it also aims at maintaining the DC-BUS voltage constant and a unit power factor at the grid connection point.The results of simulation show the performance of the Sliding mode Control in terms of monitoring, and robustness with regard to the parametric variations, compared to the Flux Oriented Control. The performance of the systems was tested and compared with the use of MATLAB/Simulink software.</span>

Research on Strategy of Grid-Side PWM Converter Based on Doubly-Fed Induction Generator

2012 ◽  
Vol 538-541 ◽  
pp. 3125-3128
Author(s):  
Wei Zhang ◽  
Yi Ruan
Keyword(s):  
Mathematic Model ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Operating Characteristics ◽  
Generation System ◽  
Pwm Converter ◽  
Control Scheme ◽  
Doubly Fed ◽  
Grid Side ◽  
Grid Side Converter

A mathematic model of the grid-side PWM converter based on Doubly-Fed Induction Generator (DFIG) has been investigated to analyze their operating characteristics. The control scheme to the grid-side PWM converter was presented. And the simulation model of the grid-side converter (GSC) based on DFIG energy generation system was built in Matlab / simulink software. The results show the feasibility and correctness of the control strategy.

Robust finite-time controller for damping of subsynchronous resonance in doubly fed induction generator wind farm

2020 ◽  
pp. 107754632092449
Author(s):  
Penghan Li ◽  
Jie Wang ◽  
Linyun Xiong ◽  
Meiling Ma ◽  
Muhammad W Khan ◽  
...  
Keyword(s):  
Fractional Order ◽  
Wind Farm ◽  
Sliding Mode ◽  
Induction Generator ◽  
Sliding Mode Controller ◽  
Terminal Sliding Mode Control ◽  
Doubly Fed Induction Generator ◽  
Terminal Sliding Mode ◽  
Subsynchronous Resonance ◽  
Doubly Fed

To alleviate subsynchronous resonance in doubly fed induction generator–based wind farm, this study devises a robust nonlinear control for a rotor-side converter based on a fractional-order sliding mode controller. The designed fractional-order sliding mode controller is able to realize finite-time control and reduce the control time compared with terminal sliding mode control, which contributes to the faster mitigation of subsynchronous resonance. Impedance-based analysis and transient simulation are carried out to evaluate the performance of the fractional-order sliding mode controller compared with terminal sliding mode control and subsynchronous damping control. Simulation results verify that the fractional-order sliding mode controller is able to damp SSR within shorter time and effectively reduce the fluctuation range of a system’s transient responses under various working conditions of compensation degrees and wind speeds. Furthermore, the fractional-order sliding mode controller enhances the robustness under external disturbance and parametric uncertainty, ensuring safe operation of the practical wind farm.

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