Designing the efficient dfig system back-to- back converter to replace lcl with llcl filter

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International Journal of Development Research

Volume: 
7
Article ID: 
9525
6 pages
Research Article

Designing the efficient dfig system back-to- back converter to replace lcl with llcl filter

Sandhya Rani Ganipalli and Vidhya Fulmali

Received 19th May, 2017; Received in revised form 27th June, 2017; Accepted 10th July, 2017; Published online 30th August, 2017

Copyright ©2017, Sandhya Rani Ganipalli and Vidhya Fulmali. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract: 

This report gives the proper understanding of conceptual power control by using direct space vector control technique and its power quality improvement conducted with DFIG. A higher order passive power filter (LLCL-filter) for the back to back converter is becoming attractive for industrial applications due to the possibility to reduce the cost of the copper and the magnetic material. It is concluded that the back to back converter compared with the LCL-filter, the proposed LLCL-filter can not only save the total filter inductance, but also reduce the damping power losses for a stiff grid application. The proposed BTB with LLCL-filter having lesser THD percentage and lesser converter losses compared with LCL-filter. Finally in this report back to back converter with both the filters are compared and all the results are simulated by MATLAB/SIMULINK software with FFT analysis.

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