Abstract:
Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms va...Show MoreMetadata
Abstract:
Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current. In this paper, it is aimed to employ passive filters for effective utilization of the cables and transformers in the harmonically contaminated power systems. To attain this goal, an optimal passive filter design approach is provided to maximize the power factor definition, which takes into account frequency-dependent losses of the power transmission and distribution equipment, under non-sinusoidal conditions. The obtained simulation results show that the proposed approach has a considerable advantage on the reduction of the total transmission loss and the transformer loading capability under non-sinusoidal conditions when compared to the traditional optimal filter design approach, which aims to maximize classical power factor definition. On the other hand, for the simulated system cases, both approaches lead to almost the same current carrying (or loading) capability value of the cables.
Date of Conference: 25-28 May 2014
Date Added to IEEE Xplore: 26 June 2014
Electronic ISBN:978-1-4673-6487-4
ISSN Information:
References is not available for this document.
Select All
1.
A.P.S. Meliopoulos, M.A.Jr. Martin, "Calculation of secondary cable losses and ampacity in the presence of harmonics," IEEE Trans. on Power Deliv., Vol. 7, No. 2, pp.451-459, Apr. 1992.
2.
A. Hiranandani, "Calculation of cable ampacities including the effects of harmonics", IEEE Trans. on Industry Appl. Mag., Vol. 4, No. 2, pp. 42-51, Mar./Apr. 1998.
3.
C. Demoulias, D.P. Labridis, P.S. Dokopoulos, K. Gouramanis, "Ampacity of low-voltage power cables under nonsinusoidal currents", IEEE Trans. on Power Deliv., Vol. 22, No. 1, pp. 584-594, Jan. 2007.
4.
C. Demoulias, D.P. Labridis, P. Dokopoulos, K. Gouramanis, "Influence of metallic trays on the ac resistance and ampacity of lowvoltage cables under non-sinusoidal currents", Electric Pow. Syst. Res., Vol. 78, No. 5, pp. 883-896, May 2008.
5.
D. Yildirim, E.F. Fuchs, "Measured transformer derating and comparison with harmonic loss factor (FHL) approach", IEEE Trans. on Power Del., Vol. 15, No. 1, pp. 186-191, Jan. 2000.
6.
E.F. Fuchs, D. Yildirim, W.M. Grady, "Measurement of eddy-current loss coefficient PEC-R, derating of single-phase transformers, and comparison with K-factor approach", IEEE Trans. on Power Del., Vol. 15, No. 1, pp. 148-154, Jan. 2000.
7.
E.F. Fuchs, D. Lin, J. Martynaitis, "Measurement of three-phase transformer derating and reactive power demand under nonlinear loading conditions", IEEE Trans. on Power Del., Vol. 21, No. 2, pp. 665-672, Apr. 2006.
8.
M.A.S. Masoum, P. S. Moses, A.S. Masoum, "Derating of asymmetric three-phase transformers serving unbalanced nonlinear loads", IEEE Trans. on Power Del., Vol. 23, No.4, pp. 2033-2041, Oct. 2008.
9.
IEEE Recommended Practice for Establishing Transformer Capability When Supplying Nonsinusoidal Load Currents, ANSI/IEEE Standard C.57.110-2008, 2008.
10.
M.E. Balci, A.E. Emanuel, "Apparent power definitions: A comparison study", IREE Journal, Vol. 6, No. 6, pp. 2713-2722, Nov. 2011.
11.
M.M. Abdel Aziz, E.E. Abou El-Zahab, A.M. Ibrahim and A.F. Zobaa, "LC compensators for power factor correction of nonlinear loads", IEEE Trans. Power Del., Vol. 19, No. 1, pp.331-336, Jan. 2004.
12.
M. M. A Aziz, A. F. Zobaa, A. M. Ibrahim, A. M. A. Monem, "Effect of time variation of system impedance and voltage harmonics on LC compensation for nonlinear loads," IEE Proc.-Electric Power Appl., Vol.153, No.4, p.p. 619-624, Jul. 2006.
13.
M.T. Al-Mathana, A.F. Zobaa and S. H. E. Abdel Aleem, "Economical design of multiple-Arm passive harmonic filters for an industrial firm-case study," in 15th Int. Conf. Harmonics and Quality of Power, ICHQP12, Hong Kong, China, Jun. 17-20, 2012, pp. 438-444.
14.
A.B. Nassif, W. Xu and W. Freitas, "An investigation on the selection of filter topologies for passive filter applications", IEEE Trans. on Power Deliv., Vol. 24, No. 3, pp. 1710-1718, Jul. 2009.
15.
S.J. Jeon, "Non-sinusoidal power theory in a power system having transmission lines with frequency-dependent resistances," IET Gener., Trans. , Vol. 1, No. 2, pp.331,339, Mar. 2007.
16.
S.H.E. Abdel Aleem, A.F. Zobaa, M. M. Abdel Aziz, "Optimal C-type passive filter based on minimization of the voltage harmonic distortion for nonlinear loads," IEEE Trans. on Ind. Electron., Vol. 59, No. 1, pp. 281-289, Jan. 2012.
17.
S.J. Ranade, W. Xu, "An overview of harmonics modeling and simulation, Tutorial on Harmonics Modeling and Simulation", IEEE Power Eng. Soc. Conf., TP-125-0, pp. 1-7, 1998.
18.
IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems, IEEE 519, 1992.
19.
J.L. Zhou, A.L. Tits, and C.T. Lawrence, Users guide for FFSQP version 3.7: A FORTRAN code for solving optimization problems, possibly minimax, with general inequality constraints and linear equality constraints, generating feasible iterates, TR-92-107r5, Inst. for Systems Research, University of Maryland, College Park, MD20742, USA, 1997.
20.
A.F. Zobaa, M.M. Abdel-Aziz, and S.H. E. Abdel Aleem, "Comparison of shunt-passive and series-passive filters for DC drive loads," Elec. Pow. Com., vol. 38, no. 3, pp. 275-291, Mar. 2010.
21.
A.F. Zobaa and S.H. E. Abdel Aleem, "A New Approach for Harmonic Distortion Minimization in Power Systems Supplying Nonlinear Loads," IEEE Trans. on Ind. Informatics, in press.
22.
Caledonian Cables Co., "Medium voltages cables catalogue", accessible online from http://www.caledoniancables.co.uk/DdFls/MV/ Medium%20Voltage%20Cables.pdf.