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Optimization Of 132/33kv Network (A Case Study of Owerri 132/33kv Network)
Subject area: Science,Engineering and Technology · Area of research: Power system Optimization
Abstract
Effective and efficient electric power transmission is a major concern in Nigeria. Electric power transmission is the link between the generating companies and the distribution companies in Nigeria. This research work is to ascertain the status of Owerri 132kV/33kV Transmission Network for better performance with Newton Raphson method using Static VAR Compensators to solve the problem of under voltage, optimize the system for better power delivery by placing Static VAR Compensators to minimize Power System losses and maximize power transfer by its equivalent model using ETAP 7.0. The data used for this research work were obtained from the Transmission Company of Nigeria TCN (Owerri 132kV/33kV T/S) in Imo State. The Network consist of 132kV lines, ALAOJI I and ALAOJI 2 with the Six (6) 33kV Feeders: Mbaise 33kV, Owerri main 33kV, Owerri line 2, 332kV, Oguta 33kV, Okigwe 33kV and Orlu 33kV with a total load 152.42 MVA; The 132kV Substation has two (2) 60MVA transformers and one (1) 45MVA transformer called Mobitra.. The result of the simulation showed that transformers buses were over loaded beyond their capacities. The introduction of Static VAR Compensators at the 132kV Buses showed that there was an increase of Load MW by 3% and a reduction of Load MVAR by 49.37% when a capacity 52.9MVAR from the VAR Compensator was introduced at the 132kV buses. The simulated result showed an optimization of existing Network from the enhanced voltage, adequate power supply and a reduction of the total power loss from 22.0MW to 21.181MW representing a 4% reduction in load MW as seen from the simulation of the modeled 132kV/33kV Network.
Keywords
ETAP, Optimization, SVC Compensation
References
[1] Amesi, C. I., Bala, T. K. and Ibe, A.O. (2017), Impact of network reconfiguration: a case study of port-harcourt town 132/33KV Sub-transmission substation and its 33/11KV injection substation distribution networks, European Journal of Electrical and Computer Engineering, pp 1-8.
[2] Oleka, E.U., Ndubisi, S.N. and Ijemaru, G.K. (2016), Electric power transmission enhancement: a case of Nigerian electric power grid, American Journal of Electrical and Electronic Engineering,4(l)pp 33- 39.
[3] Dembra, A.and Sharma, A. (2017), Improvement in voltage profile and loss minimization using high voltage distribution system, International Journal of Electrical and Electronics Research, (2)3, ll-20
[4] Rohit,K.(2013), Load flow analysis of 132KV Substation using ETAP Vol 4,No 2,pp 2-5
[5] Pazderin, A. and Yuferev, S. (2009), Power Flow Calculation by Combination of Newton-Raphson Method and Newton's Method in Optimization" lECON 2009, IEEE 2009
[6] Summers, C.T. (1999), Distance protection aspects of transmission lines equipped with series compensation capacitors, master thesis, Virginia Polytechnic Institute and State University, Blacksburg, VA.
[7] ETAP 12.6, Electrical Transient Analyzer Program Transmission Company of Nigeria, Single line diagram of port-harcourt work centre stations and their load capacity, Rumuobioakani, Nigeria, Unpublished, 2017.
[8] Okereafor, F.C., Idoniboyeobu, D.C. and Bala,T. K (2017), Analysis of 33/11KV RSU injection substation for unproved performance with distributed generation (DG) unit, American Journal of Engineering Research, 6(9), 301-316.
How to cite this paper
@article{1702938,
author = {A. J Atuchukwu, K. A Aluge},
title = {Optimization Of 132/33kv Network (A Case Study of Owerri 132/33kv Network)},
journal = {Iconic Research And Engineering Journals},
year = {2021},
volume = {5},
number = {4},
pages = {92-97},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/17029381.pdf},
abstract = {Effective and efficient electric power transmission is a major concern in Nigeria. Electric power transmission is the link between the generating companies and the distribution companies in Nigeria. This research work is to ascertain the status of Owerri 132kV/33kV Transmission Network for better performance with Newton Raphson method using Static VAR Compensators to solve the problem of under voltage, optimize the system for better power delivery by placing Static VAR Compensators to minimize Power System losses and maximize power transfer by its equivalent model using ETAP 7.0. The data used for this research work were obtained from the Transmission Company of Nigeria TCN (Owerri 132kV/33kV T/S) in Imo State. The Network consist of 132kV lines, ALAOJI I and ALAOJI 2 with the Six (6) 33kV Feeders: Mbaise 33kV, Owerri main 33kV, Owerri line 2, 332kV, Oguta 33kV, Okigwe 33kV and Orlu 33kV with a total load 152.42 MVA; The 132kV Substation has two (2) 60MVA transformers and one (1) 45MVA transformer called Mobitra.. The result of the simulation showed that transformers buses were over loaded beyond their capacities. The introduction of Static VAR Compensators at the 132kV Buses showed that there was an increase of Load MW by 3% and a reduction of Load MVAR by 49.37% when a capacity 52.9MVAR from the VAR Compensator was introduced at the 132kV buses. The simulated result showed an optimization of existing Network from the enhanced voltage, adequate power supply and a reduction of the total power loss from 22.0MW to 21.181MW representing a 4% reduction in load MW as seen from the simulation of the modeled 132kV/33kV Network.},
keywords = {ETAP, Optimization, SVC Compensation},
month = {October},
}