Kurniawan, Ilyas (2015) Analisis Stabilitas Transien Dan Mekanisme Pelepasan Beban Di PT. Newmont Nusa Tenggara. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
Preview |
Text
2211106089-Undergraduate Theses.pdf - Published Version Download (2MB) | Preview |
Abstract
PT Newmont Nusa Tenggara merupakan industri yang bergerak di
bidang pertambangan.Untuk itu sangat diperlukan sistem kelistrikan
yang mampu mendukung kelancaran proses produksi .Dalam memenuhi
kebutuhan kelistrikan PT Newmont Nusa Tenggara memiliki
pembangkit yang terdiri dari 4 unit generator uap dengan tiap generator
berkapsitas 34 MW, 9 unit mesin diesel berkapasitas 5 MW dan beban
harian rata – rata 110 MW. Mengingat mulai dari di dirikan hingga saat
ini stabilitas transien pada plant belum dianalis secara mendalam,
sehingga perlu dilakukan studi kestabilan transien untuk mengetahui
keandalan sistem saat terjadi gangguan transien. Pada tugas akhir ini
analisis difokuskan pada analisis kestabilan transien jika terjadi
pelepasan beban, generator outage, motor starting, dan hubung singkat.
Dari hasil simulasi menunjukkan bahwa lepasnya salah satu atau dua
generator dari emapat unit generator beroperasi dengan pembebanan
desain beban penuh(~112.177MW) menyebabkan perlu adanya skema
load shedding, karena frekuensi dibawah standar operasi. Selain itu,
gangguan hubung singkat pada bus tegangan tinggi 150 kV
menyebabkan sistem blackout untuk itu dilakukan kliring agar sistem
kembali stabil.Dan pada tegangan menengah 11kV,6.6kV dan 2.2 kV
menyebabkan frekuensi turun sehingga harus dilakukan kliring atau
pelepasan beban sesaat agar sistem kembali stabil. Dalam kasus short
circuit tegangan 33kV perlakuan kliringi gagal mengembalikan sistem
stabil sehingga bus yang mengalami shor circuit harus dilepas dari
sistem. Motor starting, ketika akan melakukan starting motor 50-PUM1
1500kW direkomendasikan dilakukan setting droop awal pada
generator coal plant saat 4 unit generator running.
===============================================================================================
PT Newmont Nusa Tenggara is in the mining industry.
Indispensable to the electrical system that is able to support the
production process. To meet the electricity needs of PT Newmont Nusa
Tenggara has a plant consisting of 4 units each steam generator with 34
MW generator berkapsitas, 9 units of machines diesel with a capacity of
5 MW and average daily load - average 110 MW. Given the start of
today was founded transient stability of the plant has not been analyzed
in depth, so that the transient stability studies need to be done to
determine the reliability of the system during a transient disturbance. In
this final analysis focused on transient stability analysis in case of load
shedding, generator outage, motor starting and short circuit. From the
simulation results show that the loss of one or two generators of emapat
generator units operate with a full load design load (~ 112.177MW) led
to the need for load shedding scheme, since the frequency of
substandard operations. In addition, the short circuit at 150 kV highvoltage
bus causing a blackout system for clearing that was done on the
system back stabil.Dan medium voltage 11kV, 6.6kV and 2.2 kV causes
the frequency down so it must be done clearing or load shedding while
to make the system stable again . In case of short circuit voltage of 33kV
kliringi treatment failed to restore stability so that the bus system is
experiencing a shor circuit must be removed from the system. Motor
starting, when starting the motor will perform a 50-PU-M1 1500kW
recommended setting droop done early on when the generator coal plant
running four generator units.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.319 21 Kur a |
| Uncontrolled Keywords: | kestabilan transien, gangguan besar, pelepasan beban. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Tondo Indra Nyata |
| Date Deposited: | 22 Jun 2017 03:23 |
| Last Modified: | 24 Aug 2018 03:34 |
| URI: | http://repository.its.ac.id/id/eprint/41818 |
Actions (login required)
 |
View Item |