Carte Improved Islanding Detection Methods For Distributed Generators Smita Shrivastava

Improved Islanding Detection Methods For Distributed Generators

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Legare: Carte broșată
Editura: Scholars Press
Disponibilitate: În depozitul extern
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Islanding detection is an essential requirement of the modified power system scenario with increased...

Informații despre carte

Limbă
engleză
Legare
Carte - Carte broșată
Publicat
2017
Pagini
132
EAN
9783639710625
Enbook ID
18254427
Editura
Greutate
215
Dimensiuni
150 x 220 x 8

Descriere completă

Islanding detection is an essential requirement of the modified power system scenario with increased penetration of DGs. A new detection technique based on wavelet energy entropy identification and active frequency drift confirmation approach has been proposed. Wavelet energy entropy is proposed as a solid indicator for possible islanding operation. As an active approach, frequency drift anti-islanding algorithm is proposed robustly shift the voltage frequency into the tripping window. The proposed method reduces time of detection leading to reliability. The technique also reduces non detection zone of passive method approximately to zero. These benefits of proposed method not only improve dependability of the detection but also overcome the power quality degradation issue of active method, as perturbation is not applied continuously in the system. The time taken by this dual level approach is much shorter than other hybrid methods as response time of wavelet entropy indicator is in ms and speed of active frequency drift is improved by adjusting parameters without any restriction on power quality degradation.

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