Studi penggunaan SVC tipe FC-TCR untuk mengatasi ketakseimbangan beban pada PT. PLN (Persero) distribusi gardu induk Rungkut Surabaya

Aditya, I Nyoman (2015) Studi penggunaan SVC tipe FC-TCR untuk mengatasi ketakseimbangan beban pada PT. PLN (Persero) distribusi gardu induk Rungkut Surabaya. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img] Text
undergraduated thesis.pdf

Download (2MB)

Abstract

Pada sistem distribusi umumnya, mayoritas beban ialah beban industri 3 fasa. Sering ditemui fenomena beban yang selalu berubah – ubah dan tak seimbang pada setiap fasanya. Secara teori, fenomena ketakseimbangan beban menyebabkan arus memiliki 3 komponen, yaitu arus urutan positif, arus urutan negatif, dan arus urutan nol. Telah diketahui bahwa arus urutan negatif dapat menurunkan performa bahkan hingga merusak sistem generator. Disamping itu, turbin generator dapat memiliki masalah yang serius jika terjadi arus urutan negatif. Dampak dari arus urutan negatif dapat dikurangi jika arus yang mengarah ke sumber tersebut dapat dikompensasi atau diblok. Pada tugas akhir ini akan membahas perancangan Static VAR Compensator (SVC) tipe Fixed Capacitor – Thyristor Controlled Reactor (FC – TCR) untuk mereduksi arus urutan negatif yang timbul akibat ketakseimbangan beban. Metode yang digunakan yaitu metode komponen simetri. Dari hasil simulasi pada kondisi sistem tak seimbang, didapatkan nilai arus urutan negatif sebesar 2,2 A dengan presentase ketakseimbangan sebesar 28%. Setelah terpasang SVC, didapatkan nilai arus urutan negatif turun menjadi 0,32 A dengan presentase ketakseimbangan sebesar 4,4%. Nilai tersebut telah berhasil memenuhi standar minimum ketakseimbangan. ====================================================================================================== In the general distribution system, the majority of the load is three phase industrial load. Usually these loads changed frequently and unbalanced. In theory, the phenomenon of unbalanced load causes the current has three components, namely positive sequence current, negative sequence current and zero sequence current. It is well-known that negative sequence current appearing may downgrade performance and/or damage generator systems. Besides those well known bad effects, turbine blades of generator could have serious problem that caused by negative sequence current. In this final project will discuss about the design of Static VAR Compensator (SVC) Fixed Capacitor - Thyristor Controlled Reactor (FC - TCR) to reduce the negative sequence currents caused by unbalanced load, using the method of symmetric components. From the simulation results in an unbalanced system conditions, obtained negative sequence current value of 2.2 A with a percentage of unbalanced of 28%. With SVC on the system, obtained negative sequence current value drops to 0,32 A with a percentage of unbalanced of 4,4%. The value has successfully met the minimum standards of unbalanced.

Item Type: Thesis (Undergraduate)
Additional Information: RSE 621.319 Adi s
Uncontrolled Keywords: Ketakseimbangan, Arus Urutan Negatif, SVC FC-TCR. =============================================================================================== Unbalanced, Negative Sequence Current, SVC FC-TCR
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1010 Electric power system stability. Electric filters, Passive.
Divisions: Faculty of Electrical Technology > Electrical Engineering > (S1) Undergraduate Theses
Depositing User: - Taufiq Rahmanu
Date Deposited: 29 Mar 2019 07:21
Last Modified: 29 Mar 2019 07:21
URI: http://repository.its.ac.id/id/eprint/62644

Actions (login required)

View Item View Item