Ariansyah, Firdaus (2016) Analisis Kestabilan Transien Dan Pelepasan Beban Pada Sistem Integrasi 33 KV PT. Pertamina RU IV Cilacap Akibat Penambahan Beban RFCC Dan PLBC. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Keseimbangan daya antara kebutuhan beban dengan kapasitas
pembangkitan generator merupakan salah satu parameter dari kestabilan
operasi sistem tenaga listrik. Namun dalam pengoperasian sistem tenaga
listrik akan selalu terjadi perubahan beban sehingga pembangkit perlu
menyesuaikan daya keluarannya melalui governor maupun pengaturan
eksitasi. Hal ini perlu dilakukan agar kestabilan sistem tetap terjaga.
Kestabilan sistem adalah kemampuan sistem tenaga listrik untuk
mempertahankan sinkronisasi dan keseimbangan daya pembangkitan
dengan daya pembebanan dalam sistem. Dalam keadaan ini, semua
generator berputar pada kecepatan sinkron. Gangguan-gangguan besar
yang terjadi secara tiba-tiba seperti lepasnya pembangkit, starting motor
daya besar, dan hubung singkat mampu mengakibatkan percepatan
ataupun perlambatan putaran rotor sehingga hilangnya sinkronisasi
dapat terjadi pada sistem.
Adanya penambahan beban pada sistem kelistrikan di PT
Pertamina RU IV Cilacap mengakibatkan penambahan pembangkit dan
pabrik baru. Akibatnya sistem kelistrikan di PT Pertamina RU IV
Cilacap berubah karena perlu menambahkan sistem bus 33 kV.
Untuk mengetahui batas kestabilan yang baik pada sistem
kelistrikan suatu industri, maka ditetapkan standar batas kemampuan
normal frekuensi, tegangan, dan sudut rotor. Standar yang digunakan
mengacu pada IEEE Std C37.106-2003 (Revisi dari ANSI/IEEE
C37.106-1987) mengenai pengamanan frekuensi abnormal turbin
dengan menggunakan metode pelepasan beban.
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The Balance of electrical power between load and generation
capacity is one of the parameter in electrical stability operation. But in
its daily operation there is increase or decrease of load so the
generation must appropriate the electrical power by the governor or
excitation. This should be do to keep the system balancing. The balance
of electrical power can be definite as an ability of electrical power
system to keep the synchronize of and power balance with load power.
In this situation all the generation rotate in its synchronous speed. The
large disturbance as a generation shedding, large power motor starting
and short circuit can decrease or increase the rotor speed and effect to
the lost synchronize of the system.
Due to the addition of load at the PT. Pertamina RU IV Cilacap
electrical system, new generation and plant has been added to the
system. The effect is PT Pertamina RU IV Cilacap electrical system
change into 33 KV integrated system.
The proper limit of the stability at the electrical system of an
industrial plant, the standard of frequency, voltage and rotor angle
must have a reference. The reference standard is IEEE Std C37.106-
2003 (Rev of ANSI/IEEE C37.106-1987) abnormal frequency of steam
turbine with load shedding mechanism.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSE 621.31 Ari a |
| Uncontrolled Keywords: | Kestabilan Transien, Pelepasan Beban, PT Pertamina RU IV Cilacap |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission |
| Divisions: | Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Users 13 not found. |
| Date Deposited: | 18 Jul 2017 02:24 |
| Last Modified: | 26 Dec 2018 03:59 |
| URI: | http://repository.its.ac.id/id/eprint/42179 |
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