Analisis Stabilitas Transien Dan Perancangan Pelepasan Beban Pada Joint Operation Body (JOB) Pertamina-Petrochina East Java

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. ======================================================================================================= 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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