PENYELESAIAN ALIRAN DAYA 37 BUS DENGAN METODE NEWTON RAPHSON (STUDI KASUS SISTEM INTERKONEKSI 150 KV SULAWESI SELATAN)
ABSTRACT: Changing in
structure systems although in power plants, it must be concerned, because if
one of the components out of the system, will be followed by changes in power
flow and voltage profile. Study of power flow becomes very necessary to analyze
power flow that occurs in electric power systems, both now and for the planning
system in the future. ETAP 4.0 (Electric Transient and Analysis Program) is a
software that supports the power system. Iteration method (numerical) is one of
the techniques to solve power flow studies, one of the method is Newton Raphson
Method. The advantage of this method is more appropriate to calculate the power
flow in systems with large numbers. From the results obtained with two study
cases or two conditions that is used to power flow analyze, that is : normal
conditions and with the installation of shunt capacitors on the bus who
suffered critical voltage, where for Buses are experiencing critical voltage at
Bosowa distribution bus of 10.438 kV or 94,9% and Tanjung Bunga distribution
bus at 18.818 kV or 94.1%, whereas after the addition of shunt capacitors on
Bosowa distribution Bus at 10.490 kV or 95.4 % and Tanjung Bunga distribution
bus at 19.209 kV or 96.0 %. Total losses amounted to 7.483 MW, where the
biggest losses are on the transmission line Barru to Pangkep, that is 950.6 kW.
The greatest of Active Power (P) is 62.46 MW, which flows from bus 7 Barru to
bus 8 Pangkep. The greatest of Reactive Power ( Q ) is 12.55 MVAR, which flows
from Bus 26 Pangkep 70 kV to Bus 27 Tonasa 70 kV. The largest voltage Buses is
Bus 22 Bone about 152,315 kV or 101,54 % for normal conditions and 152,893 kV
or 101.93 % after the addition of the capacitor. Thus, analysis of the results
it can be concluded that after the addition of a shunt capacitor, voltage
improvement made to meet the standard operating voltage, because the minimum
limit of PT.PLN standard is +5% and -5%.
Penulis: Muhammad Ruswandi
Djalal, Yudhi Leo Chandra, Muhammad Yusuf Yunus, Herman Nauwir
Kode Jurnal: jptmesindd140431
