Connected to Grid PDF

By Akshay Kumar

Master's Thesis from the 12 months 2014 within the topic Engineering - energy Engineering, grade: 7.8, Ajay Kumar Garg Engineering university, direction: M.Tech, language: English, summary: Wind new release has develop into an important trade power resource and has skilled elevated development in India in past times decade. whereas it has nice strength in its place to much less environmentally pleasant strength resources, there are lots of technical demanding situations that reason wind to be thought of negatively by way of many utilities. Wind strength conversion platforms be afflicted by the truth that their genuine strength new release is heavily depending on the neighborhood environmental conditions.

The Doubly Fed Induction Generator (DFIG) established wind turbine with variable-speed variable-pitch keep an eye on scheme is the most well-liked wind energy generator within the wind energy undefined. This desktop might be operated both in grid attached or standalone mode.

during this thesis, a close electromechanical version of a DFIG-based wind turbine attached to energy grid in addition to individually operated wind turbine process with diverse sub-systems is built within the MATLAB/SIMULINK setting and its similar generator and turbine regulate constitution is discovered. during this regard following configurations were considered:
•DFIG with Battery garage sub-system
•DFIG with Buck-Boost converter
•DFIG with transformer
•DFIG with 3-winding transformer
Addition of battery garage and buck-boost converter sub-systems into the procedure permits not just dispatching of generator strength but additionally decreases the variety of their reactive energy necessities. the total regulate over either energetic and reactive energy is feasible via transformer among DFIG and rotor aspect converter.
The regular kingdom habit of the final wind turbine procedure is gifted and the regular country reactive strength skill of the DFIG is analyzed. it's been proven that significant a part of the reactive energy will be provided from rotor aspect converter to minimize the general ranking of the generator.
The DFIG with above pointed out sub-systems is hooked up to grid. the complete harmonic distortion research and potency are conducted. it's discovered that DFIG with transformer in among laptop and rotor part converter has lowest THD (2.29%) and DFIG with 3-winding transformer has greatest potency (above 93%).

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Connected to Grid PDF

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Connected to Grid

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DFIG-based Wind Power Conversion System
Connected to Grid by Akshay Kumar


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