Sepriawan, Denny Yusuf (2015) Analisis Stabilitas Transien Dan Perancangan Pelepasan Beban Pada Joint Operation Body (JOB) Pertamina-Petrochina East Java. Undergraduate thesis, Institut Technology Sepuluh Nopember.
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Abstract
Pada tugas akhir ini analisis yang dilakukan kestabilan
transien meliputi kestabilan tegangan, dan kestabilan frekuensi saat
terjadi generator lepas, pengasutan motor, dan hubung singkat.
Software yang digunakan dalam menganalisis fenomena kestabilan
transien ini yaitu ETAP 7.5. Hasil simulasi menunjukkan bahwa
pada kasus lepasnya generator CNT TRBN 2, generator G102-D ,
generator ONAN DIESEL pada konfigurasi standalone
mengakibatkan sistem menjadi tidak stabil karena jumlah beban
yang ditanggung pembangkit lebih besar dari kapasitas pembangkit.
Hal ini menyebabkan tegangan dan frekuensi turun. Untuk
mengembalikan kestabilan sistem, untuk lepasnya satu generator
memerlukan pelepasan beban). Pada kasus lepasnya generator CNT
TRBN 2, generator G102-D , generator CNTR TRBN 2 dan CNTR
TRBN pada konfigurasi integrasi mengakibatkan sistem menjadi
tidak stabil karena jumlah beban yang ditanggung pembangkit lebih
besar dari kapasitas pembangkit. Hal ini menyebabkan tegangan dan
frekuensi turun .Untuk mengembalikan kestabilan sistem, untuk
lepasnya satu generator memerlukan pelepasan beban. Pada kasus
hubung singkat saat konfigurasi belum terintegrasi jika bus MVSWGR-
2-A mengalami hubung singkat 3 phasa bus BB MCC PAD
C,BB MCC PAD B,MV-SWGR-2-B, mengalami voltage sagging
dengan tegangan terendah mencapai 11%. Selain itu,sistem
kelistrikan di plant CPA JOB PPEJ sangat handal dalam hal motor
starting sebesar 282KW.
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In this final transient stability analysis conducted include
voltage stability, frequency stability, and stability in the event of
generator rotor angle off, motor starting and short circuit. Software
that is used in analyzing the transient stability of this phenomenon is
ETAP 7.0.0. Simulation results show that the loss of a generator
when the generator 5 active load shedding schemes require the first
stage. In this case, the system frequency dropped to 89.88% and
again a steady 97.57% or 48.7 Hz so that load shedding is necessary
to improve the system. To restore the stability of the system, requires
a 2-stage load shedding by removing 24.63% of the total load (1.444
MW) so that the frequency is stable at 100.1% or 50.05 Hz. In short
circuit at 3.15 kV bus, the system frequency drops until it reaches the
bottom at 22.43% condition necessitating isolation of disturbance
through the opening in source circuit breaker interference. In
addition, the case is still allowed when the motor start current
generator 6 is not a significant effect on the frequency response and
voltage on the system so the system is still in a state that is allowed.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.319 21 Sep a |
| Uncontrolled Keywords: | Kestabilan transien, gangguan transien, load shedding |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). |
| Divisions: | Faculty of Electrical Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 13 Aug 2018 02:32 |
| Last Modified: | 13 Aug 2018 02:32 |
| URI: | http://repository.its.ac.id/id/eprint/59313 |
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