Determination of the Penetration Level of ASVT Sub-stations on 132kv Line Without Voltage Profile Violation
International Journal of Energy and Power Engineering
Volume 5, Issue 1, February 2016, Pages: 22-28
Received: Jan. 27, 2016;
Accepted: Feb. 4, 2016;
Published: Feb. 25, 2016
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Kitheka Joel Mwithui, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Michael Juma Saulo, Department of Electrical and Electronic Engineering/Faculty of Engineering and Technology, Technical University of Mombasa, Mombasa, Kenya
David Murage, Department of Electrical and Electronic Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
In developing countries, there are many high voltage transmission lines which transverse villages not supplied with electricity to supply main towns and industrial areas. The conventional substations are too expensive and the power distributor can only set them up if return on investment is assured. Non-conventional (ASVT) sub-stations have been tried and found to be technically successful in stepping down 132kv to low voltages like 240volts in one step to supply single phase loads. Though this technology is cheap and technically fit to be applied in areas of low demand were setting up conventional sub-station will be uneconomical, the technology is not fast spreading in Sub-Sahara Africa (SSA) where there are well established transmission line but poor distribution network. More so the technology remains as a pilot project in countries like Congo were they were first tried. This research aimed at investigating whether violation of voltage profile of the transmission line could have led to low spread of ASVT sub-station technology in Sub-Sahara Africa. The investigation of the maximum number of ASVT substations which could be terminated on 132kv line to supply these villages with electricity without voltage profile violation was carried out. In this research, transmission line and ASVT substation models were implemented using SIMULINK software in MATLAB environment. Surge impedance curves were also used to identify the point of voltage instability or voltage collapse in the system.
Kitheka Joel Mwithui,
Michael Juma Saulo,
Determination of the Penetration Level of ASVT Sub-stations on 132kv Line Without Voltage Profile Violation, International Journal of Energy and Power Engineering.
Vol. 5, No. 1,
2016, pp. 22-28.
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Saulo M. J, Gaunt C. T, and Mbogho M. S (2012): Comparative assessment of capacitor coupling substation and Auxiliary Service Voltage Transformer for Rural Electrification, 2nd Annual Kabarak University, Nakuru, Kenya.
Dagbjartsson G., Gaunt C. T, Zomers A. N: Rural Electrification, A scoping report.
Gomez, R. G, Solano, A. S, Acosta, E. A (2010): Rural Electrification project development, using Auxiliary Transformers, location of Tubares, Chihuahua, Mexico.
Saulo M. J, Gaunt C. T (2014) “implication of using Auxiliary Service Voltage Transformer substation for Rural Electrification.” International journal of energy and power engineering. [on – line] 4(2-1) pp 1-11. Capetown, South Africa
Arteche Instrument Transformer manual (2010): ASVT – 245 and ASVT -145 manual and technical brochures
Anderson, G. O, Yanev K. (2010): Non convectional substation and distribution system for rural Electrification. 3rd IASTED Africa PES 2010. Gaborone, Botswana.
Omboua A. (2006) Application report “the high voltage line becomes a power distributor: A successful test in Congo – Brazzaville” Congo.
Omar C., Gomez R. Solano A. Acosta E. (2010) Eradicating energy poverty “Rural Electrification in Chuahuahua, Mexico at one third of the cost versus a conventional substation” Mexico.
Michael J. S, Mbogho M. S (2014): Implication of capacitor coupling substation on Rural Electrification planning in Kenya. Proceedings of 3rd international Kenya society of Electrical and Electronics Engineers conference, KSEEE 2014. Mombasa, Kenya.
Haanyika C. M, (2008): Rural electrification in Zambia: A policy and institutional analysis: Energy policy 36 (2008) pp 1044 – 1058.
J. Kitheka, M. Saulo, D. Murage, The penetration level of auxiliary service voltage transformer substations on a power network for rural electrification.," in Kabarak University 5th Annual International Conference., July 2015.
Jacobson D. A. N (2000) example of ferroresonance in high voltage power system proceedings of the 1999 international conference on power system transients.
Namsil K, Lorenz P. (2008): Appropriate Distributed Generation Technology for Electrifying the village. Hague, Nertherlands.
MNES (2002 -2003): Ministry of nonconventional energy Sources, INDIA.
M. Globler, “Determination of transmission line parameters from time stamped data,’’ masters thesis, university of Pretoria, July 2007.
M. Saulo, C. Gaunt, penetration level of unconventional rural electrification technologies on power networks. PhD thesis, University of Capetown, May 2014.