CLC number: TM761; TM712
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Received: 2008-02-21
Revision Accepted: 2008-05-20
Crosschecked: 2008-12-26
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Tahir MAHMOOD, Mohammad Ahmad CHOUDHRY. Performance improvement of complementary feeders using static transfer switch system[J]. Journal of Zhejiang University Science A, 2009, 10(2): 189-200.
@article{title="Performance improvement of complementary feeders using static transfer switch system",
author="Tahir MAHMOOD, Mohammad Ahmad CHOUDHRY",
journal="Journal of Zhejiang University Science A",
volume="10",
number="2",
pages="189-200",
year="2009",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0820127"
}
%0 Journal Article
%T Performance improvement of complementary feeders using static transfer switch system
%A Tahir MAHMOOD
%A Mohammad Ahmad CHOUDHRY
%J Journal of Zhejiang University SCIENCE A
%V 10
%N 2
%P 189-200
%@ 1673-565X
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0820127
TY - JOUR
T1 - Performance improvement of complementary feeders using static transfer switch system
A1 - Tahir MAHMOOD
A1 - Mohammad Ahmad CHOUDHRY
J0 - Journal of Zhejiang University Science A
VL - 10
IS - 2
SP - 189
EP - 200
%@ 1673-565X
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0820127
Abstract: The performance of complementary feeders, running in parallel, can be significantly improved by installing static transfer switches (STSs) at critical locations. We develop the STS control logic, which transfers the critical load from the preferred feeder to the alternate feeder when a voltage sag or a fault occurs on the preferred feeder. A forced commutation technique is proposed and implemented to turn off the preferred feeders’ thyristor, thus avoiding cross current to flow and minimizing the transfer time. Simulation results show that the forced commutation technique is more effective as compared to the recently proposed time delay technique for STS operation. Two different feeders, namely New Exchange, the preferred feeder, and Sector I-10/2, the alternate feeder of Islamabad Electric Supply COmpany (IESCO), Pakistan, have been selected for case studies. The software PSCAD/EMTDC professional package has been used for simulation.
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