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Journal of Zhejiang University SCIENCE A 2009 Vol.10 No.2 P.189-200

http://doi.org/10.1631/jzus.A0820127


Performance improvement of complementary feeders using static transfer switch system


Author(s):  Tahir MAHMOOD, Mohammad Ahmad CHOUDHRY

Affiliation(s):  Department of Electrical Engineering, University of Engineering and Technology, Taxila 47050, Pakistan

Corresponding email(s):   tahir_m@uettaxila.edu.pk

Key Words:  Complementary feeder, Cross current, Static transfer switch (STS), Sensitive load, Voltage sag, PSCAD/EMTDC


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.

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author="Tahir MAHMOOD, Mohammad Ahmad CHOUDHRY",
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T1 - Performance improvement of complementary feeders using static transfer switch system
A1 - Tahir MAHMOOD
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J0 - Journal of Zhejiang University Science A
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PB - Zhejiang University Press & Springer
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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.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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[3] Cheng, P.T., Chen, Y.H., 2006. Design and implementation of an impulse commutated solid-state transfer switch. IEEJ Trans. Ind. Appl., 126(7):888-896.

[4] Hesterlee, J.M., Sanders, E.T., Thrash, F.R.Jr., 1996. Bare overhead transmission and distribution conductor design overview. IEEE Trans. Ind. Appl., 32(3):709-713.

[5] Hong, Y.Y., Hsieh, H.M., 2007. Determination of locations for switches using genetic algorithms and fuzzy multi-objective programming. Int. J. Electr. Power Energy Syst., 29(6):480-487.

[6] IEEE-Std-141, 1986. IEEE Recommended Practice for Electrical Power Distribution for Industrial Plant.

[7] Mokhtari, H., Dewan, S.B., Iravani, M.R., 2001a. Effect of regenerative load on a static transfer switch performance. IEEE Trans. Power Del., 16(4):619-624.

[8] Mokhtari, H., Iravani, M.R., Dewan, S.B., Lehn, P., Martinez, J.A., 2001b. Benchmark systems for digital computer simulation of a static transfer switch. IEEE Trans. Power Del., 16(4):724-731.

[9] Mokhtari, H., Dewan, S.B., Iravani, M.R., 2002. Analysis of a static transfer switch with respect to transfer time. IEEE Trans. Power Del., 17(1):190-199.

[10] Manitoba HVDC Research Centre, 2004. User’s Guide PSCAD/EMTDC. Version 4.1.0.

[11] Moschakis, M.N., Hatziargyriou, N.D., 2003. A detailed model for a thyristor-based static transfer switch. IEEE Trans. Power Del., 18(4):1442-1449.

[12] Olimpo, A.L., Acha, E., 2002. Modeling and analysis of custom power systems. IEEE Trans. Power Del., 17(1):226-272.

[13] Reed, G.F., Takeda, M., Iyoda, I., 1999. Improved Power Quality Solutions Using Advanced Solid-state Switching and Static Compensation Technologies. IEEE PES Meeting, 2:1132-1137.

[14] Schwartzenberg, J.W., de Doncker, R.W., 1995. 15 kV Medium Voltage Static Transfer Switch. IEEE 30th IAS Annual Meeting, Orlando, FL, 3:2515-2520.

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