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Voltage Profile Analysis of 132kV Transmission Line Using Powerworld Simulator: A Case Study of JUJA-RABAI Line

Received: 7 July 2022     Accepted: 1 August 2022     Published: 9 August 2022
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Abstract

The growing power demand has made the government of Kenya to increase it’s financial budget to address the issue of transmission and distribution of power. The increasing set up of distribution sub-stations both in urban and rural areas has called for immediate investigation to find out whether the existing transmission lines are capable of handling the load demand without voltage collapse. This paper presents a study to analyze the current voltage profile of Juja-Rabai 132kv transmission lines before new sub-stations are set up to address the growing power demand. The network load flow analysis was carried out using Decoupled load flow analysis method and powerworld software which uses Newton Raphson method. In this study bus voltages of each substation were computed by forming Jacobian matrices. The power flow calculations was used to validate the simulated data. The voltage profile calculations resulted to a flat voltage profile while the simulated results showed violation of voltage profile from Voi Substation to Rabai substation. This violation was corrected using a shunt compensator in Voi substation. This paper revealed that more substations can be terminated in Juja – Rabai 132 kV transmission line to address the existing power demand without voltage violation in the power network.

Published in American Journal of Electrical Power and Energy Systems (Volume 11, Issue 4)
DOI 10.11648/j.epes.20221104.12
Page(s) 79-86
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), 2022. Published by Science Publishing Group

Keywords

Transmission Line, Voltage Profile, Voltage Collapse, Sub-station

References
[1] S. Teske, S. Sawyer, O. SCH”afer, T. Pregger, S. Simon, Naegler, S. Schmid, E. D Ozdemir, J. pagenkoof, F. Kleiner, etal,, “Energy[r] evolution-a sustainable world energy outlook 2015”.
[2] P. Brinkerhoff, Kenya Distribution master plan, technical report 2013.
[3] C. Zhao. H. Zhang. GXian, T. C Pan, A model predictive approach to protect power system against cascading black outs, int, J. electr. Power energy systems. 113 pp 310-321. (may 2019).
[4] Prinesha Naidoo, R. rollgraaf, South Africa RollingBlack out raise Reccession Risk 2019.
[5] H. H A lhelou. ME Hamedani-Golshan T. C Njenda Psiano, A survey on power system black out and cascaded events: Research motivation and challenges.
[6] H. Shiraki, S. Ashina, Y. Kameyama, S. Hashimoto, T.
[7] K. J Mwithui,’Determination of the penetration level of Auxiliary Service Transformer sub-station on 132kv transmission Network Msc Thesis, vol 44, no. 8. Pp 6465-6489, 2017.
[8] Tingori consultancy, Enviromental and social impact assessment report for the proposed Kamburu- Embu-Kibirigwi-Thika Transmission line project.
[9] Khami, M. J Atiyahsity, B. T, Ashem K. M, Computer Aided stability analysis in power systems” journal of Thi-Qar University.
[10] Kurdur. P’ power system stability and control. New York, M. C GrawHill.
[11] Ministry of Energy publication, Kenya, Least cost power development plan (LCPDP), Nairobi, Government Press. (2011).
[12] Zerwa, M., Voltage stability assessment of Swiss power Transmission. Msc Thesis. Zurich.
[13] A Saghafinia, MATLAB: Professional application in power system. BoD-Books on Demand, (2005).
[14] Ban L. Jewell W.,” Power system analysis software tools.” In IEEE Power Engineering Society general Meeting, pp 130-144. (2005).
[15] Electrical Power systems, New International Publishers Debapriya Das (2006).
Cite This Article
  • APA Style

    Joel Mwithui Kitheka, Peter Musau Moses, Abraham Mutunga Nyete, Nicodemus Odero Abungu. (2022). Voltage Profile Analysis of 132kV Transmission Line Using Powerworld Simulator: A Case Study of JUJA-RABAI Line. American Journal of Electrical Power and Energy Systems, 11(4), 79-86. https://doi.org/10.11648/j.epes.20221104.12

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    ACS Style

    Joel Mwithui Kitheka; Peter Musau Moses; Abraham Mutunga Nyete; Nicodemus Odero Abungu. Voltage Profile Analysis of 132kV Transmission Line Using Powerworld Simulator: A Case Study of JUJA-RABAI Line. Am. J. Electr. Power Energy Syst. 2022, 11(4), 79-86. doi: 10.11648/j.epes.20221104.12

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    AMA Style

    Joel Mwithui Kitheka, Peter Musau Moses, Abraham Mutunga Nyete, Nicodemus Odero Abungu. Voltage Profile Analysis of 132kV Transmission Line Using Powerworld Simulator: A Case Study of JUJA-RABAI Line. Am J Electr Power Energy Syst. 2022;11(4):79-86. doi: 10.11648/j.epes.20221104.12

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  • @article{10.11648/j.epes.20221104.12,
      author = {Joel Mwithui Kitheka and Peter Musau Moses and Abraham Mutunga Nyete and Nicodemus Odero Abungu},
      title = {Voltage Profile Analysis of 132kV Transmission Line Using Powerworld Simulator: A Case Study of JUJA-RABAI Line},
      journal = {American Journal of Electrical Power and Energy Systems},
      volume = {11},
      number = {4},
      pages = {79-86},
      doi = {10.11648/j.epes.20221104.12},
      url = {https://doi.org/10.11648/j.epes.20221104.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.epes.20221104.12},
      abstract = {The growing power demand has made the government of Kenya to increase it’s financial budget to address the issue of transmission and distribution of power. The increasing set up of distribution sub-stations both in urban and rural areas has called for immediate investigation to find out whether the existing transmission lines are capable of handling the load demand without voltage collapse. This paper presents a study to analyze the current voltage profile of Juja-Rabai 132kv transmission lines before new sub-stations are set up to address the growing power demand. The network load flow analysis was carried out using Decoupled load flow analysis method and powerworld software which uses Newton Raphson method. In this study bus voltages of each substation were computed by forming Jacobian matrices. The power flow calculations was used to validate the simulated data. The voltage profile calculations resulted to a flat voltage profile while the simulated results showed violation of voltage profile from Voi Substation to Rabai substation. This violation was corrected using a shunt compensator in Voi substation. This paper revealed that more substations can be terminated in Juja – Rabai 132 kV transmission line to address the existing power demand without voltage violation in the power network.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Voltage Profile Analysis of 132kV Transmission Line Using Powerworld Simulator: A Case Study of JUJA-RABAI Line
    AU  - Joel Mwithui Kitheka
    AU  - Peter Musau Moses
    AU  - Abraham Mutunga Nyete
    AU  - Nicodemus Odero Abungu
    Y1  - 2022/08/09
    PY  - 2022
    N1  - https://doi.org/10.11648/j.epes.20221104.12
    DO  - 10.11648/j.epes.20221104.12
    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  - 79
    EP  - 86
    PB  - Science Publishing Group
    SN  - 2326-9200
    UR  - https://doi.org/10.11648/j.epes.20221104.12
    AB  - The growing power demand has made the government of Kenya to increase it’s financial budget to address the issue of transmission and distribution of power. The increasing set up of distribution sub-stations both in urban and rural areas has called for immediate investigation to find out whether the existing transmission lines are capable of handling the load demand without voltage collapse. This paper presents a study to analyze the current voltage profile of Juja-Rabai 132kv transmission lines before new sub-stations are set up to address the growing power demand. The network load flow analysis was carried out using Decoupled load flow analysis method and powerworld software which uses Newton Raphson method. In this study bus voltages of each substation were computed by forming Jacobian matrices. The power flow calculations was used to validate the simulated data. The voltage profile calculations resulted to a flat voltage profile while the simulated results showed violation of voltage profile from Voi Substation to Rabai substation. This violation was corrected using a shunt compensator in Voi substation. This paper revealed that more substations can be terminated in Juja – Rabai 132 kV transmission line to address the existing power demand without voltage violation in the power network.
    VL  - 11
    IS  - 4
    ER  - 

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Author Information
  • Department of Electrical and Information Engineering, University of Nairobi, Nairobi, Kenya

  • Department of Electrical and Information Engineering, University of Nairobi, Nairobi, Kenya

  • Department of Electrical and Information Engineering, University of Nairobi, Nairobi, Kenya

  • Department of Electrical and Electronic Engineering, Machakos University, Nairobi, Kenya

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