A NOVEL INTEGRATED AC/DC/AC CONVERTERS FOR DIRECT DRIVE PERMANENT MAGNET WIND POWER GENERATION SYSTEM by SHEELA AROKIA MARY . J M.E ( EMBEDDED SYSTEM TECHNOLOGIES) Under the Guidance Of Mr.S.Sivasakthi M.E., Associate Professor Head of the Department Department of EEE
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
A NOVEL INTEGRATED AC/DC/AC CONVERTERS FOR DIRECT
DRIVE PERMANENT MAGNET WIND POWER GENERATION
SYSTEM
by
SHEELA AROKIA MARY . J
M.E ( EMBEDDED SYSTEM TECHNOLOGIES)
Under the Guidance
Of Mr.S.Sivasakthi M.E.,
Associate Professor
Head of the
Department
Department of EEE
To reduce the switching loss & Minimize the
circulating current in the power converters used in
Wind power generation system and to improve the
Power factor & overall performance of the system.
24 switches are used in Power converters.
Separate stabilizing circuit is used
Switching losses are high
Presence of Harmonics are high
9 switches are used.
Switching losses are reduced.
Circulating current is minimized.
Less harmonics.
Power factor improvement is made.
This proposed system has AC/DC/AC converter.
In existing ac-ac converter topologies, 2 level 6 switch
comprising a common dc link capacitor & VSI are
frequently used
In order to minimize the switching loss , we are
implementing a topology of 9 switch USMC for wind
energy conversion system.
For rectification, a 3 switch Vienna rectifier is used.
In inverter stage it employs an 6 switch VSI.
Hence the number of switches & switching losses are
reduced.
The circulating current is minimized & Power factor
improvement is made.
As a result harmonics are reduced & overall efficiency