Study Of Harmonics And Transient Stability On A Doubly Fed Induction Generator Based Wind Farm

2019 ◽  
Author(s):  
Aditi Verma ◽  
Sanjeev Mishra ◽  
Lata Gidwani ◽  
Shripad Ganapati Desai
Keyword(s):  
Wind Farm ◽  
Transient Stability ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Doubly Fed

Commonly Used Wind Generator Systems: A Comparison Note

2017 ◽  
Vol 7 (2) ◽  
pp. 299
Author(s):  
Prashanth N.A ◽  
P Sujatha
Keyword(s):  
Wind Turbine ◽  
Wind Farm ◽  
High Efficiency ◽  
Low Cost ◽  
Maintenance Cost ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Direct Drive ◽  
Gear Box ◽  
Doubly Fed

<p>Amongst all renewable energy generation sources, wind power exhibits fastest growth rate. The increasing number of wind farm installations worldwide demand low maintenance, cost and failure rates with high efficiency. Determining the optimal drive train configuration amongst various configurations available for wind turbines is a challenge. In this paper commonly used, doubly fed induction generator with single stage gear box (GDFIG), doubly fed induction generator with multi stage gear box (DFIG) and the direct-drive permanent-magnet generator (DDPMG) are compared. Modelling of wind turbine with efficiency computations is presented. Considering common wind turbine parameters, performance of GDFIG, DFIG and DDPMG is compared through an experimental study. Considering a reference 5 MW variable speed wind turbine, efficiency of DDPMG is 96% when compared to 93.58%, 93.12% for DFIG and GDFIG. The experimental results presented prove that the DDPMG is a preferable solution considering low cost and high efficiency.</p>

Modeling and Simulation of a Grid with a Doubly Fed Induction Generator

2012 ◽  
Vol 424-425 ◽  
pp. 170-173
Author(s):  
Hui Shen Zhang ◽  
Ge Xiang Zhang ◽  
De Lin Wang
Keyword(s):  
Simulation Model ◽  
Vector Control ◽  
Transient Stability ◽  
Short Circuit ◽  
Power Grid ◽  
Effective Control ◽  
Induction Generator ◽  
Doubly Fed Induction Generator ◽  
Operating Characteristics ◽  
Doubly Fed

This paper establishes a simulation model for a doubly fed induction generator (DFIG) connected with a power grid by using the vector control scheme. The model consists of a wind turbine, a doubly fed generator, power converters and a vector control strategy. The simulation model is built by using PSCAD/EMTDC. We also investigate the operating characteristics of a grid with the DFIG by considering respective wind speed fluctuation and short-circuit fault in the grid. Experiment results verify the correctness of the simulation model and the relative stability in the operating process of the simulated grid. This work provides a useful simulation platform for further studying the transient stability of the DFIG connected with power grid and more effective control strategies

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