Abstract: Transmission infrastructure in Nigeria is plagued with weak power wheeling capability. Large amount of electrical power is transmitted over very long distances to load centers through weak transmission lines. This research therefore aims at improving the efficiency of long-distance transmission lines using FACTS devices. To improve on the efficiency of the long-distance transmission line, thyristor-controlled series compensation was used in this work, as the technique offers high efficiency on transmitting line voltage and current. The IEEE 9 Bus Power System was used as a case study. MATLAB software was the tool used in running the network with and without TCSC. The system was simulated and their transient performances were thoroughly analyzed. The load flow simulation was carried out on a faulty IEEE 9 bus system. Figure 4.1 and Table 4.1 show the result of the simulation. Bus 5 was detected to violate the voltage limit of 0.95 < V< 1.05 p.u. having a voltage magnitude of 0. 9488p.u, this indicates that there was power system instability while when the TCSC device is incorporated into the network, the voltage at bus 5 was regulated from 0.9488 p.u. to 1.01 p.u. and other buses that experienced voltage improvement. The result when compared without and with TCSC, shows that total active power Loss without TCSC was 348.6856MW while that with TCSC was 322.53MW. Also, the reactive power loss without and with TCSC was 146.8526MW and 32.96336MW respectively. Therefore, the percentage of power system improvement is 7.5% when TCSC was incorporated.
Keywords: Flexibility, Transmission, Electricity, FACTS, Thyristor-Controller, Series, Voltage.
Title: IMPROVING THE EFFICIENCY OF LONG-DISTANCE POWER TRANSMISSION SYSTEM USING THYRISTOR CONTROLLED SERIES COMPENSATOR DEVICE
Author: Okenna Osmond, F. U. Iloh
International Journal of Electrical and Electronics Research
ISSN 2348-6988 (online)
Vol. 10, Issue 3, July 2022 - September 2022
Page No: 10-19
Research Publish Journals
Website: www.researchpublish.com
Published Date: 16-September-2022
