Kontrol Optimal Sistem Pembangkit Hybrid Solar Photovoltaic Dan Diesel Engine Generator Menggunakan Variable Speed Doubly-Fed Induction Generator

Ishlakhuddin, Mohammad (2021) Kontrol Optimal Sistem Pembangkit Hybrid Solar Photovoltaic Dan Diesel Engine Generator Menggunakan Variable Speed Doubly-Fed Induction Generator. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada operasi normal, diesel engine generator (DEG) konvensional dirancang dengan kecepatan konstan untuk beroperasi pada kondisi beban minimum tertentu yang umumnya bernilai lebih dari 50% nilai daya penuh meskipun permintaan daya beban sebenarnya rendah. Hal ini dapat menyebabkan rendahnya efisiensi DEG pada kondisi permintaan daya beban yang rendah. Melakukan operasi DEG dengan kecepatan variabel dapat meningkatkan efisiensi DEG karena kecepatan DEG akan disesuaikan dengan permintaan daya beban. Pada sistem hybrid PV – DEG, kebutuhan daya beban akan disuplai oleh PV dan sisa kebutuhan daya beban akan ditanggung oleh DEG. Tugas akhir ini menyajikan pemodelan dan simulasi kontrol optimal DEG dengan menggunakan Doubly-Fed Induction Generator (DFIG) yang beroperasi pada kondisi variable speed untuk menghasilkan daya sesuai permintaan beban. Dari simulasi yang dilakukan, DEG dapat beroperasi dengan variable speed dengan menggunakan Direct Voltage Control untuk menjaga tegangan dan frekuensi output DEG tetap konstan. Dengan operasi variable speed, efisiensi bahan bakar dapat ditingkatkan hingga 21,41% untuk daya beban rendah.
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In normal operation, the conventional diesel engine generator (DEG) is designed at constant speed to operate under certain minimum load conditions which are generally rated at more than 50% of the full power rating even though the actual load power demand is lower. This can lead to low DEG efficiency under conditions of low load power demand. Performing DEG operations at variable speed can increase DEG efficiency because the speed of DEG will be matched to the load power demand. In the PV – DEG hybrid system, the load power requirement will be supplied by the PV and the remaining load power requirement will be supplied by the DEG. This final project presents the optimal control modeling and simulation of DEG using a Doubly-Fed Induction Generator (DFIG) which operates at variable speed conditions to produce various power at various rotor speed according to load demand. From the simulation, DEG can operate with variable speed by using Direct Voltage Control to keep the DEG output voltage and frequency constant. With variable speed operation, fuel efficiency can increase up to 21.41% for low load power.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Doubly-Fed Induction Generator (DFIG), Diesel-Engine Generator (DEG), Solar Photovoltaic(PV), Variable Speed
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1007 Electric power systems control
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Mohammad Ishlakhuddin
Date Deposited:	15 Aug 2021 09:20
Last Modified:	15 Aug 2021 09:20
URI:	http://repository.its.ac.id/id/eprint/86827

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