Rovizain, Annas (2026) Analisis dan Mitigasi Harmonisa pada Jaringan Distribusi dengan Sistem EV Charger Menggunakan Kombinasi Double Tuned Filter dan Optimasi Impedansi Transformator Zigzag. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Komitmen Indonesia dalam mendukung tercapainya Net Zero Emission pada tahun 2060 mendorong transisi menuju pemanfaatan kendaraan listrik secara masif. Namun, tingginya penetrasi EV charger pada sistem distribusi memunculkan tantangan kualitas daya akibat karakteristiknya sebagai beban non-linear yang menginjeksikan distorsi harmonisa. Hal ini memicu peningkatan Total Harmonic Distortion (THD), penambahan rugi-rugi daya, lonjakan arus netral, dan percepatan degradasi peralatan. Penelitian ini mengimplementasikan strategi mitigasi komprehensif menggunakan Double-Tuned Filter (DTF) dan optimasi impedansi zero-sequence pada transformator zigzag. Simulasi dan analisis aliran daya harmonisa dilakukan menggunakan perangkat lunak ETAP. DTF dirancang dengan karakteristik impedansi selektif untuk meredam harmonisa orde dominan, khususnya orde ke-5 dan ke-7, sedangkan transformator zigzag dioptimalkan untuk mengalirkan dan mereduksi harmonisa triplen (orde ke-3, ke-9, dan ke-15) yang memicu tingginya arus netral. Hasil simulasi menunjukkan bahwa penerapan skema kombinasi ini berhasil memperbaiki kualitas daya secara signifikan. Nilai THDi berhasil diturunkan dari 16,07% menjadi 4,48%, dan THDv turun dari 4,92% menjadi 2,29%,sehingga keseluruhan sistem telah memenuhi standar IEEE 519. Selain itu, optimasi pada transformator zigzag juga terbukti mampu menekan arus netral pada jaringan hingga 17,2% Secara keseluruhan, metode ini terbukti efektif dan ekonomis sebagai solusi mitigasi harmonisa pada sistem distribusi modern dengan penetrasi beban EV charger yang tinggi.
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Indonesia's commitment to supporting the achievement of Net Zero Emissions by 2060 drives a massive transition toward the widespread utilization of electric vehicles. However, the high penetration of EV chargers in distribution systems introduces power quality challenges due to their characteristics as non-linear loads that inject harmonic distortion. This triggers an increase in Total Harmonic Distortion (THD), additional power losses, neutral current surges, and accelerated equipment degradation. This study implements a comprehensive mitigation strategy using a Double-Tuned Filter (DTF) and zero-sequence impedance optimization on a zigzag transformer. Simulations and harmonic load flow analyses were conducted using ETAP software. The DTF was designed with selective impedance characteristics to mitigate dominant harmonic orders, particularly the 5th and 7th orders, while the zigzag transformer was optimized to flow and reduce triplen harmonics (3rd, 9th, and 15th orders) which cause high neutral currents. Simulation results indicated that the application of this combined scheme significantly improved power quality. The THDi value was successfully reduced from 16.07% to 4.48%, and the THDv decreased from 4.92% to 2.29%, enabling the entire system to comply with the IEEE 519 standard. Furthermore, the optimization of the zigzag transformer proved capable of suppressing the neutral current in the network by up to 17.2%. Overall, this method is proven to be an effective and economical harmonic mitigation solution for modern distribution systems with high EV charger penetration.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Kendaraan Listrik, EV Charger, Harmonisa, Double Tuned Filter, Transformator Zigzag, Zero Sequence Blocking Reactor Electric Vehicle, EV Charger, Harmonics, Double-Tuned Filter, Zigzag Transformer, Zero Sequence Blocking Reactor. |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK3226 Transients (Electricity). Electric power systems. Harmonics (Electric waves). T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL220.5 Battery charging stations (Electric vehicles) |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis |
| Depositing User: | Annas Rovizain |
| Date Deposited: | 29 Jul 2026 02:27 |
| Last Modified: | 29 Jul 2026 02:27 |
| URI: | http://repository.its.ac.id/id/eprint/139135 |
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