STUDI PENGARUH HUBUNGAN BELITAN TRANSFORMATOR DISTRIBUTED GENERATION (DG) TERHADAP FERORESONANSI PADA SALURAN DISTRIBUSI

Walid, Wildan Ihsanul (2020) STUDI PENGARUH HUBUNGAN BELITAN TRANSFORMATOR DISTRIBUTED GENERATION (DG) TERHADAP FERORESONANSI PADA SALURAN DISTRIBUSI. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Feroresonansi merupakan sebuah gangguan yang mungkin terjadi pada sistem tenaga listrik. Feroresonansi bisa mengakibatkan tegangan lebih dan osilasi pada gelombang tenaga listrik. Dewasa ini mulai banyak diterapkan pembangkit tenaga listrik menggunakan energi terbarukan yang berskala kecil yang biasa disebut Distributed Generation (DG). Pada penelitian kali ini akan meneliti pengaruh perubahan belitan transformator step-up DG. Untuk mencapai tujuan tersebut maka dibuat rangkaian simulasi feroresonansi yang terdiri dari rangkaian sederhana dari Single Line Diagram (SLD) dari PLN Nusa Penida, dan rangkaian ekivalen feroresonansi. Rangkaian tersebut terdiri dari sumber tegangan, pemicu berupa switching, kapasitansi serta induktansi non-linier. Data yang diambil berupa nilai tegangan puncak serta karakteristik feroresonansi pada transformator step-up DG degan hubungan belitan bintang-bintang, bintang-delta, delta-bintang dan delta-delta. Penelitian ini memperoleh nilai tegangan puncak yang bervariasi serta karakteristik yang beragam. Dari hasil analisis didapat bahwa hubungan belitan yang rentan terhadap feroresonansi adalah hubungan belitan bintang-bintang. Dengan nilai tegangan puncak tertinggi bernilai 139660V. Sedangkan hubungan belitan yang aman adalah hubungan belitan bintang-delta. Dengan nilai tegangan puncak tertinggi bernilai 78079V. =========================================================== Ferroresonance is a disturbance that may occur in the electric power system. Ferroresonance can cause overvoltage and oscillation in electric power wave. Nowadays many power plants are applied using small-scale renewable energy commonly called Distributed Generation (DG). This study will examine effect of the winding changes of DG step-up transformer. To achieve the goal, a series of feroresonansi simulation was made consisting of a simple series of Single Line Diagram (SLD) from PLN Nusa Penida, and an equivalent series of feroresonansi. The circuit consists of a voltage source, a trigger in the form of switching, capacitance also non-linear inductance. The Data collected is in the form of peak voltage values and ferroresonance characteristics of the DG step-up transformer with the windings connection of the turn of star-star, star- delta, delta-star and delta-delta. This study got varying peak voltage value and various characteristics. From the result of the analysis, is was found that the winding connection that is susceptible to ferroresonance is star- star winding. With the highest peak voltage value is 139660V . Whereas a safe winding connection is star-delta winding. With the highest peak voltage value is 78079V .

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Distributed Generation, Transformator, Feroresonansi, Distribusi, Belitan Transformator, ATPdraw. ============================================================ Distributed Generation, Transformer, Ferroresonance, Distribution, Transformer Winding, ATPdraw.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK6565.T7 Transformers
Depositing User: Wildan Ihsanul Walid
Date Deposited: 11 Aug 2020 05:28
Last Modified: 11 Aug 2020 05:28
URI: https://repository.its.ac.id/id/eprint/77491

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