Authors:
Engr. Obi, Fortunatus Uche, Aghara, Jachimma and Prof. Atuchukwu, John |
Abstract:
This study is on the Nigerian Power system which is complex and dynamic which is characterized by frequent
faults and outages resulting to none steady supply of power to the teaming consumers. This scenario has great
effect on the activities and mode of living of Nigerians. The work is aimed at bridging the gap of proposing
further expansion of the grid system which is not only limited by huge sum of finance and difficulties in
finding right –of- way for new lines but also which faces the challenges of fixed land and longtime of
construction the data of the network was gotten and modeled into the network. The power flow Analysis was
carried on the network comprising of 16 generators and 35 loads and 73 transmission lines using Power
System Analysis Tool Box (PSAT) in MATLAB environment under the influence of Newton-Raphson Load
Flow (NRLF) method. A base simulation of network was carried out and series compensation was carried
out on the violated lines without contingencies. Series compensation using Thyristor Controlled series
Compensator (TCSC) modeled with Newton-Raphson Load Flow (NRLF) method was adopted. The results
obtained for base simulation revealed an MVA flow of 334.87 KVA and 212.73 MVA after compensation
which showed a huge brought down of the MVA flow. The violated lines were Egbin – Ikeja West as
887MVA, Egbin –Benin 1514MVA
Ikeja West- Ikaro 4457 MVA, Ikaro- Egbin 1102 MVA, Benin- Onitsha-1026 MVA, Benin –Sapele
800MVA, Onitsha- Aloji 757 MVA, Ikotu Ekpene- Ugwuaji 768MVA. However, after compensation there
were improvement in areas of violation on lower limit and reductions at higher limits as recorded again Egbin
– Ikeja West as 289 MVA, Egbin –Benin 536 MVA,
Ikeja West- Ikaro 430 MVA, Ikaro- Egbin 375 MVA, Benin- Onitsha 629 MVA, Benin –Sapele 788MVA,
Onitsha- Aloji 515 MVA, Ikotu Ekpene- Ugwuaji 431MVA. |
