On the Assessment of Power System Stability Using Matlab/Simulink Model
International Journal of Energy and Power Engineering
Volume 4, Issue 2, April 2015, Pages: 51-64
Received: Feb. 13, 2015;
Accepted: Feb. 25, 2015;
Published: Mar. 2, 2015
Views 5354 Downloads 434
Abel Ehimen Airoboman, Department of Electrical/Electronics Engineering, University of Benin, Nigeria
Ignatius Kema Okakwu, Department of Electrical/Electronics Engineering, University of Benin, Nigeria
Akintude Samson Alayande, Department of Electrical Engineering, Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, Staatsartillerie Road, South Africa
Oluwasogo Emmanuel Seun, Department of Electrical and Computer Engineering, Kwara State University, Malete, Nigeria
Follow on us
Several voltage collapses have been experienced by most practical power systems in recent times in Nigeria. These have been mostly attributed to island formation within the network as a result of switching out of critical buses within the network. This paper assesses the stability of a practical power network of the Nigerian National Grid (NNG) with reference to a critical transmission line which could cause island formation as a result of fault within the NNG network. The Matlab/ Simulink model for both the steady-state and dynamic behaviours of the critical bus within NNG network is presented. The simulations for various fault conditions are also presented. The results obtained from the simulations are discussed. From the simulation results, high flow of reactive power and current, as a result of various faults along the transmission lines, were observed. Furthermore, non-sinusoidal waveforms generated from the simulation results show an indication that a high degree of compensation is required at the studied bus. The study uses Benin bus of NNG with respect to Benin-Onitsha-Alaoji 330-kV transmission network due to its location and sensitivity within the grid.
Nigerian National Grid, Voltage Collapse, Island Formation, Critical Buses, Simulink Model
To cite this article
Abel Ehimen Airoboman,
Ignatius Kema Okakwu,
Akintude Samson Alayande,
Oluwasogo Emmanuel Seun,
On the Assessment of Power System Stability Using Matlab/Simulink Model, International Journal of Energy and Power Engineering.
Vol. 4, No. 2,
2015, pp. 51-64.
Airoboman, A. E., Power System Dynamic State Stability Analysis: A case study of Benin-Onitsha-Alaoji 330kV Transmission Line (M.ENG Project University of Benin), 2012.
Anil, P., Mark, H. & Graunt, T. R., .Estimation of Outages in Overhead Distribution Systems of South Africa and of Manhattan, Kansa, USA 7th International Conference on Power System Operation and Planning, Cape Town, South Africa, 2007.
Ekeh, J.C., Electric Power Principles, 2003.
Onohaebi, S. O., Power Transmission constraints and faults analysis in Nigeria Power System, 2007.
Ndiagwalukwe, J. U., Frequency Control and Grid Stability.
Ibe, A.O, & Okedu, E. K, A Critical Review of Grid Operations in Nigeria, Pacific Journal of Science and Technology, 2009.
Gupta, B. R., Power System Analysis and Design, 1998.
Ademola, A, Awosope, C.O.A, Adoghe, A.U & Okelola, M. O., Reliability Analysis of Circuit Breaker in the Nigerian 330-kV Transmission Network, 2014.
A. S. Alayande, A. A. Jimoh & A. A. Yusuff, Voltage Profile Enhancement and Loss Reduction in Weak Meshed Networks, Proceedings of the IA STED International Conference, Power and Energy Systems (AfricaPES 2014), Gaborone, Botswana, September 2014.
A. A. Fouad, V. Vittal and T.K.Oh, “Critical energy for the direct transient stability assessment of multi-machine power systems”, IEEE Trans.1984.
L. Gyugyi, “Dynamic compensation of AC transmission line by solid-state synchronous voltage sources”, IEEE Trans. on Power Delivery, Vol. 9, No. 2, 1994.
Kothari, M.L. and Tambey, N., Unified Power Flow Controller (UPFC) Based Damping Controller for Damping Low Frequency Oscilliation in a Power System, 2003.