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Load Flow Analysis of 132/33KV Power Network for Voltage Enhancement Using Static VAR Compensation (SVC) Technique

Wonodi Ikonwa H. N. Amadi B. Dike

Subject area: Science,Engineering and Technology  ·  Area of research: Power System

Abstract

The usage of flexible alternating current transmission systems (FACTS) equipment is crucial for improving the power network's parameters. The load flow analysis and voltage profile enhancement of 132/33kV distribution network in Benin City were the main subjects of this study, both with and without the application of the Static Var Compensator (SVC) compensation technology. In order to show the effects of the static var compensator (SVC) on the power network for voltage enhancement, the study employed Electrical Transient Analyzer Program (ETAP) software to model the single line diagram of the network and execute the load flow simulation.The load flow simulation results showed that transformers T1 (116.2%), T2 (110.8%), T3 (191.8%), and T4 (110.5%) were overloaded according to the IEC standard that states that the constructive lifespan of the equipment will be shortened by continuous loading of the oil-immersed transformers above the limit of 80%.Bus 5 was observed to be the most overloaded bus. SVC of 150 MVAR was installed at the weak buses for reactive power compensation and the transformers upgraded to 75MVA, the load flow analysis results showed that the voltage profile improved significantly and there was reduction in the overloading of the transformers; T1 (78.5%), T2 (75%), T3 (61.5%), and T4 (74.8%), to increase the life span of the transformers.

Keywords

ETAP, load flow analysis, SVC, Thyristor

References

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[2] K.O. Oyedoja - Modeling and Simulation Study of the Use of Static Var Compensator (SVC) for Voltage Control in Nigeria Transmission Network, International Journal of Engineering and Applied Sciences, vol5 no. 5, pp. 44-50, 2014.

[3] S. Rahimzadeh and M. T. Bina - Looking for Optimal Number and Placement of FACTS Devices to Manage the Transmission Congestion, Energy Conversion and Management, vol. 52, pp. 437 – 446, August 2011.

[4] M.E. El-Hawary, Introduction to Electric Power Systems, 2nd Ed.: John Wiley and Son Incorporated Publishers, pp. 315, 2008.

[5] M. Karthikeyan and P. Ajay-D-Vimalraj - Optimal Location of Shunt FACTS Devices for Power Flow Control, in proceedings of IEEE 2011, International Conference on Emerging Trends in Electrical and Computer Technology ICETECT,Negercoil, India 2011, pp. 154 – 159.

[6] M.O. Ganiyu and T.M. Adekilekun - Unified Power Flow Controller Applications In Interconnected Power System: a case study of Nigerian transmission system, in proceedings of the IEEE 14th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering, STAT2013, Sousse, Tunisia, 2013, pp. 499 – 507.

[7] T.R. Ayodele, A.S. Ogunjuyigbe, and O. Oladele - Improving the Transient Stability of Nigerian 330 kV Transmission Network Using Static Var Compensation- Part 1: The Base Study, Nigerian Journal of Technology, vol 35, no 1, pp. 155 – 166, 2016.

[8] H. Ambriz-Perez, E. Acha, C.R. Fuerte-Esquivel - Advanced SVC models for Newton-Raphson Load Flow and Newton Optimal Power Flow Studies, Power Systems, IEEE Transactions, March, 2000.

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[17] International Electrotechnical Commission. Loading Guide for Oil-Immersed Power Transformers; IEC Publications: Geneva, Switzerland, 2006.

How to cite this paper

Wonodi Ikonwa, H. N. Amadi, B. Dike "Load Flow Analysis of 132/33KV Power Network for Voltage Enhancement Using Static VAR Compensation (SVC) Technique" Iconic Research And Engineering Journals Volume 6 Issue 8 2023 Page 205-211
Wonodi Ikonwa, H. N. Amadi, B. Dike "Load Flow Analysis of 132/33KV Power Network for Voltage Enhancement Using Static VAR Compensation (SVC) Technique" Iconic Research And Engineering Journals, vol. 6, no. 8, Feb. 2023
Wonodi Ikonwa, H. N. Amadi, B. Dike (2023). Load Flow Analysis of 132/33KV Power Network for Voltage Enhancement Using Static VAR Compensation (SVC) Technique. Iconic Research And Engineering Journals, 6(8).
Wonodi Ikonwa, H. N. Amadi, B. Dike "Load Flow Analysis of 132/33KV Power Network for Voltage Enhancement Using Static VAR Compensation (SVC) Technique" Iconic Research And Engineering Journals, vol. 6, no. 8, Feb. 2023.
@article{1704121,
      author = {Wonodi Ikonwa, H. N. Amadi, B. Dike},
      title = {Load Flow Analysis of 132/33KV Power Network for Voltage Enhancement Using Static VAR Compensation (SVC) Technique},
      journal = {Iconic Research And Engineering Journals},
      year = {2023},
      volume = {6},
      number = {8},
      pages = {205-211},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1704121.pdf},
      abstract = {The usage of flexible alternating current transmission systems (FACTS) equipment is crucial for improving the power network's parameters. The load flow analysis and voltage profile enhancement of 132/33kV distribution network in Benin City were the main subjects of this study, both with and without the application of the Static Var Compensator (SVC) compensation technology. In order to show the effects of the static var compensator (SVC) on the power network for voltage enhancement, the study employed Electrical Transient Analyzer Program (ETAP) software to model the single line diagram of the network and execute the load flow simulation.The load flow simulation results showed that transformers T1 (116.2%), T2 (110.8%), T3 (191.8%), and T4 (110.5%) were overloaded according to the IEC standard that states that the constructive lifespan of the equipment will be shortened by continuous loading of the oil-immersed transformers above the limit of 80%.Bus 5 was observed to be the most overloaded bus. SVC of 150 MVAR was installed at the weak buses for reactive power compensation and the transformers upgraded to 75MVA, the load flow analysis results showed that the voltage profile improved significantly and there was reduction in the overloading of the transformers; T1 (78.5%), T2 (75%), T3 (61.5%), and T4 (74.8%), to increase the life span of the transformers.},
      keywords = {ETAP, load flow analysis, SVC, Thyristor},
      month = {February},
  }