Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices

Mandefro Teshome; Fsaha Mabrahtu

doi:doi:10.11648/j.epes.20200903.11

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Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices

Mandefro Teshome, Fsaha Mabrahtu

Published in American Journal of Electrical Power and Energy Systems (Volume 9, Issue 3)

Received: 17 February 2020 Accepted: 5 March 2020 Published: 17 August 2020

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Abstract

Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.

Published in	American Journal of Electrical Power and Energy Systems (Volume 9, Issue 3)
DOI	10.11648/j.epes.20200903.11
Page(s)	41-46
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Network Reconfiguration, Power Reliability, New Substation, Reliability Indice, ETAP Software

References

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[2]	T. Gebreegziabher, "Study on smart grid system for improvement of power distribution system reliability case study: Addis Ababa District," Addis Ababa University, 2014.
[3]	Q. Matti Alias, N. Salman, and R. Yassen Abed, "Reliability Enhancement in Distribution Systems via Optimum Network Reconfiguration by using Gravitational Search Algorithm," DIYALA JOURNAL OF ENGINEERING SCIENCES, vol. 9, pp. 1-10, 2016.
[4]	S. SAMARGHANDI and M. SARHANGZADEH, "Reconfiguration and capacitor allocation in radial distribution systems with a new Independent loop identification method," Leonardo Electronic Journal of Practices and Technologies, pp. 23-44, 2017.
[5]	R. N. Azari, M. A. Chitsazan, and I. Niazazari, "Optimal recloser setting, considering reliability and power quality in distribution networks," 2017.
[6]	D. Zhu, "Power system reliability analysis with distributed generators," Virginia Tech, 2003.
[7]	S. Chatterjee, P. Nath, R. Biswas, and M. Das, "Advantage of DG for improving voltage profile over facts devices."
[8]	F. Carlsson, E. Demeke, P. Martinsson, and T. Tesemma, "Cost of Power Outages for Manufacturing Firms in Ethiopia: A Stated Preference Study," 2018.
[9]	C. H. N. de Resende Barbosa, M. H. S. Mendes, and J. A. de Vasconcelos, "Robust feeder reconfiguration in radial distribution networks," International Journal of Electrical Power & Energy Systems, vol. 54, pp. 619-630, 2014.
[10]	T. Abhiraj, B. M. Jos, and P. Aravindhababu, "Dragonfly Optimization Based Reconfiguration for Voltage Stability Enhancement in Distribution Systems."
[11]	M. Sedighizadeh, M. Esmaili, and M. Mahmoodi, "Reconfiguration of distribution systems to improve reliability and reduce power losses using imperialist competitive algorithm," Iranian Journal of Electrical and Electronic Engineering, vol. 13, pp. 287-302, 2017.
[12]	D.-L. Duan, X.-D. Ling, X.-Y. Wu, and B. Zhong, "Reconfiguration of distribution network for loss reduction and reliability improvement based on an enhanced genetic algorithm," International Journal of Electrical Power & Energy Systems, vol. 64, pp. 88-95, 2015.
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[14]	A. Debru, "Study of Distributed Generation in Improving Power System Reliability (Case study: Addis Center Substation)," Addis Ababa University, 2016.
[15]	S. D. Gont and G. B. Worku, "Assessment of power reliability and improvement potential by using smart reclosers," Zede Journal, vol. 31, pp. 26-32, 2014.
[16]	A. Manasa, D. R. Kumar, and N. K. Kumari, "Power loss and Reliability optimization in Distribution System with Network Reconfiguration and Capacitor placement," Power, vol. 6, 2017.

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APA Style

Mandefro Teshome, Fsaha Mabrahtu. (2020). Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices. American Journal of Electrical Power and Energy Systems, 9(3), 41-46. https://doi.org/10.11648/j.epes.20200903.11

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ACS Style

Mandefro Teshome; Fsaha Mabrahtu. Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices. Am. J. Electr. Power Energy Syst. 2020, 9(3), 41-46. doi: 10.11648/j.epes.20200903.11

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AMA Style

Mandefro Teshome, Fsaha Mabrahtu. Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices. Am J Electr Power Energy Syst. 2020;9(3):41-46. doi: 10.11648/j.epes.20200903.11

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@article{10.11648/j.epes.20200903.11,
  author = {Mandefro Teshome and Fsaha Mabrahtu},
  title = {Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices},
  journal = {American Journal of Electrical Power and Energy Systems},
  volume = {9},
  number = {3},
  pages = {41-46},
  doi = {10.11648/j.epes.20200903.11},
  url = {https://doi.org/10.11648/j.epes.20200903.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.epes.20200903.11},
  abstract = {Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.},
 year = {2020}
}

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TY  - JOUR
T1  - Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices
AU  - Mandefro Teshome
AU  - Fsaha Mabrahtu
Y1  - 2020/08/17
PY  - 2020
N1  - https://doi.org/10.11648/j.epes.20200903.11
DO  - 10.11648/j.epes.20200903.11
T2  - American Journal of Electrical Power and Energy Systems
JF  - American Journal of Electrical Power and Energy Systems
JO  - American Journal of Electrical Power and Energy Systems
SP  - 41
EP  - 46
PB  - Science Publishing Group
SN  - 2326-9200
UR  - https://doi.org/10.11648/j.epes.20200903.11
AB  - Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.
VL  - 9
IS  - 3
ER  -

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Author Information

Mandefro Teshome

School of Electrical and Computing Engineering, Haramaya Institute of Technology, Haramaya University, Dire Dawa, Ethiopia
Fsaha Mabrahtu

School of Electrical and Computing Engineering, Haramaya Institute of Technology, Haramaya University, Dire Dawa, Ethiopia

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APA Style

Mandefro Teshome, Fsaha Mabrahtu. (2020). Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices. American Journal of Electrical Power and Energy Systems, 9(3), 41-46. https://doi.org/10.11648/j.epes.20200903.11

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ACS Style

Mandefro Teshome; Fsaha Mabrahtu. Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices. Am. J. Electr. Power Energy Syst. 2020, 9(3), 41-46. doi: 10.11648/j.epes.20200903.11

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AMA Style

Mandefro Teshome, Fsaha Mabrahtu. Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices. Am J Electr Power Energy Syst. 2020;9(3):41-46. doi: 10.11648/j.epes.20200903.11

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@article{10.11648/j.epes.20200903.11,
  author = {Mandefro Teshome and Fsaha Mabrahtu},
  title = {Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices},
  journal = {American Journal of Electrical Power and Energy Systems},
  volume = {9},
  number = {3},
  pages = {41-46},
  doi = {10.11648/j.epes.20200903.11},
  url = {https://doi.org/10.11648/j.epes.20200903.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.epes.20200903.11},
  abstract = {Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Reliability Assessment and Study the Effect of Substation Feeder Length on Failure Rate and Reliability Indices
AU  - Mandefro Teshome
AU  - Fsaha Mabrahtu
Y1  - 2020/08/17
PY  - 2020
N1  - https://doi.org/10.11648/j.epes.20200903.11
DO  - 10.11648/j.epes.20200903.11
T2  - American Journal of Electrical Power and Energy Systems
JF  - American Journal of Electrical Power and Energy Systems
JO  - American Journal of Electrical Power and Energy Systems
SP  - 41
EP  - 46
PB  - Science Publishing Group
SN  - 2326-9200
UR  - https://doi.org/10.11648/j.epes.20200903.11
AB  - Today, utilities are trying to maximize system reliability, improve efficiency, and reduce costs by using protection system, distributed generation system, by reconfiguring the feeder, by connecting the end of feeder to other substation and so on. However, when it tries to use some techniques (reconfiguring the feeder, connecting the end of the feeder to another substation); the techniques have positive and negative impact on reliability improvement. The substation which is taken in this paper has the System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI) is 521.46 interruptions per customer per year and 446.82 hours per customer per year respectively. The historical outage interruption data of the years of 2016-2018 has been used as a base year. The study has evaluated the new substation to improve the system reliability. The simulation results have been done with the help of Electrical Transient Analysis Program (ETAP 12.6) software. In this paper includes improvement of the system reliability of the feeder is supplied from two substations or new substation should be connected at the end of the feeder. Due to the new substation, the length of the feeder will vary, and the variation of the feeder has significant effect on power reliability. The value of SAIFI and SAIDI after the new substation connected is 169 and 96 respectively. Since the new substation has negative impact, the value of indices is not reduced more.
VL  - 9
IS  - 3
ER  -

Copy | Download