scholarly journals Harmonics Reduction using a Modified Controller for Doubly Fed Induction Generator

2021 ◽  
Vol 9 (5) ◽  
pp. 45-50
Author(s):  
Ahmed Hassan Adel ◽  
Salama Abo-Zaid ◽  
Mahmoud Elwany
Keyword(s):  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Simulink Model ◽  
Simulation Results ◽  
Doubly Fed ◽  
Grid Side ◽  
Rotor Side Converter ◽  
Grid Side Converter

This paper discusses a control system for the converter of doubly fed induction generator (DFIG) driven by wind energy. The converter of DFIG consists of two main parts; rotor side converter (RSC) and grid side converter (GSC). Two advanced control methods for GSC are presented here in this paper; vector control strategy based on pulse width modulation (PWM) and direct power control (DPC). DPC is based on switching table for voltage vector selection. In addition to grid voltage position, direct and quadrature current components are used here as inputs to the switching table instead of active and reactive powers respectively. This paper proposes a modified switching table for DPC to reduce ripples and total harmonic distortion (THD) of current produced by GSC. A Simulink model for 9 MW wind system based on DFIG is given in this paper. Simulation results are given for PWM, DPC and Proposed system for GSC. In view of THD calculations and simulation results a comparative study and conclusion are given in the end of this paper.

scholarly journals Control & Design for FOPID Based Line-Side Converter of the Brushless Doubly-Fed Induction Generator

2020 ◽  
Vol 10 (2) ◽  
pp. 148-152
Keyword(s):  
Reactive Power ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Power Extraction ◽  
Wind Energy Conversion ◽  
Doubly Fed ◽  
Grid Side ◽  
Static Compensator ◽  
Rotor Side Converter ◽  
Grid Side Converter

This paper deals with the operation of doubly fed induction generator (DFIG) with an integrated active filter capabilities using grid-side converter (GSC). The main contribution of this work lies in the control of GSC for supplying harmonics in addition to its slip power transfer. The rotor-side converter (RSC) is used for attaining maximum power extraction and to supply required reactive power to DFIG. This wind energy conversion system (WECS) works as a static compensator (STATCOM) for supplying harmonics even when the wind turbine is in shutdown condition. Control algorithms of both GSC and RSC are presented in detail. The proposed DFIG-based WECS is simulated using MATLAB/Simulink.

scholarly journals The voltage dip and doubly fed induction generator with considering uncertainty conditions

2020 ◽  
Vol 9 (1) ◽  
pp. 30-38 ◽  
Author(s):  
Zahra Rafiee ◽  
Mansour Rafiee ◽  
Mohammad Reza Aghamohammadi
Keyword(s):  
Reactive Power ◽  
Transient Behavior ◽  
Imperialist Competitive Algorithm ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Voltage Dip ◽  
Doubly Fed ◽  
Grid Side ◽  
Rotor Side Converter ◽  
Grid Side Converter

The paper presents the transient behavior of the doubly fed induction generator (DFIG) in the wind turbine (WT) in the normal and voltage dip condition. When voltage dip occurs in to the grid, the rotor current increases and the DC-link voltage increases too and start to oscilate. In this paper, the proportional integral (PI) controllers are used to control the DFIG-basedwind farms for regulating the electronic devices including rotor side converter (RSC) and grid side converter (GSC) to control the active and reactive power of DFIG. The PI parameters are tuned by imperialist competitive algorithm (ICA). So, the transient behavour of the DFIG-based WF is explors when the voltage dip occurs. Hence, the induced electric motive force in to the rotor is measured. Also, an existed uncertainty for mutual inductance is considered caused by saturated curve during three-phase fault conditions and the bahavour of DFIG-based WT is examined and analyzed. All of simulation is done by Matlab/Simulink®.

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.

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