RANCANG BANGUN INVERTER SATU FASA SEBAGAI SISTEM UPS DALAM KONDISI PEMADAMAN LISTRIK TERHADAP LAMPU LALU LINTAS DI KOTA BANDUNG

Muhammad Andhika Triputra, - and Dadang Lukman Hakim, - (2025) RANCANG BANGUN INVERTER SATU FASA SEBAGAI SISTEM UPS DALAM KONDISI PEMADAMAN LISTRIK TERHADAP LAMPU LALU LINTAS DI KOTA BANDUNG. S1 thesis, Universitas Pendidikan Indonesia.

Abstract

Penelitian ini membahas perancangan dan pengujian sistem Uninterruptible Power Supply (UPS) dengan Automatic Transfer Switch (ATS) menggunakan inverter satu fasa low frequency berbasis modul EGS002 untuk aplikasi lampu lalu lintas LED. Tujuan penelitian adalah memastikan sistem dapat menyuplai beban secara kontinu saat terjadi pemadaman listrik serta mengevaluasi kinerja dan efisiensinya. Simulasi digital dilaksanakan menggunakan software Proteus dengan membagi rangkaian menjadi 12 blok fungsi utama, meliputi pengendalian switching otomatis, proteksi baterai, dan driver SPWM. Pengujian fisik inverter dilakukan pada beberapa kondisi beban: satu lampu LED 15 W, dua lampu LED 15 W, tiga lampu LED 15 W, dan tiga lampu LED 15 W dengan tambahan 1 kipas 27 W. Efisiensi konversi daya pada beban sangat ringan menampilkan nilai di atas 100%, yang secara teknis tidak realistis dan mengindikasikan adanya ketidakakuratan alat ukur terutama dalam pengukuran arus output AC pada beban non-linear. Pada beban menengah, yaitu dua dan tiga lampu LED, efisiensi inverter tercatat optimal dengan rentang antara 85,86% hingga 99,45%. Namun, efisiensi menurun menjadi sekitar 57,94% pada beban maksimum (tiga lampu LED dan satu kipas), yang menunjukkan peningkatan rugi-rugi daya pada beban berat. Peningkatan suplai tegangan H-bridge dari 12 V menjadi 24 V terbukti menjaga kestabilan tegangan output AC pada berbagai tingkat beban. Kesimpulannya, sistem inverter low frequency SPWM ini layak digunakan sebagai suplai cadangan lampu lalu lintas LED, namun perlu optimisasi desain untuk menurunkan konsumsi daya idle dan meningkatkan presisi pengukuran, sehingga data kinerja dan efisiensi yang diperoleh dapat lebih akurat dan mewakili kondisi nyata. This research discusses the design and testing of an Uninterruptible Power Supply (UPS) system with an Automatic Transfer Switch (ATS) using a low-frequency single-phase inverter based on the EGS002 module for LED traffic light applications. The objective of this study is to ensure the system can supply the load continuously during power outages and to evaluate its performance and efficiency. Digital simulations were conducted using Proteus software by dividing the circuit into 12 main functional blocks, including automatic switching control, battery protection, and SPWM driver. Physical testing of the inverter was carried out under several load conditions: one 15 W LED lamp, two 15 W LED lamps, three 15 W LED lamps, and three 15 W LED lamps with an additional 27 W fan. Power conversion efficiency at very light loads showed values above 100%, which is technically unrealistic and indicates inaccuracies in measuring instruments, especially in the AC output current measurement under nonlinear loads. At medium loads, namely two and three LED lamps, the inverter efficiency was recorded optimally ranging from 85.86% to 99.45%. However, efficiency dropped to about 57.94% at maximum load (three LED lamps and one fan), indicating increased power losses under heavy loads. Increasing the H-bridge supply voltage from 12 V to 24 V proved to maintain the stability of AC output voltage across various load levels. In conclusion, this low-frequency SPWM inverter system is feasible for use as a backup power supply for LED traffic lights but requires design optimization to reduce idle power consumption and improve measurement accuracy so that the obtained performance and efficiency data better represent real conditions

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Item Type:	Thesis (S1)
Additional Information:	https://scholar.google.com/citations?hl=en&user=LCdx4DYAAAAJ ID SINTA Dosen Pembimbing: Dadang Lukman Hakim: 5994748
Uncontrolled Keywords:	UPS, Automatic Transfer Switch, Inverter Satu Fasa, Low Frequency SPWM, EGS002, Efisiensi Daya, Lampu Lalu Lintas LED UPS, Automatic Transfer Switch, Single-Phase Inverter, Low-Frequency SPWM, EGS002, Power Efficiency, LED Traffic Lights
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Fakultas Pendidikan Teknik dan Industri > Jurusan Pendidikan Teknik Elektro > Program Studi Teknik Tenaga Elektrik
Depositing User:	Muhammad Andhika Triputra
Date Deposited:	30 Oct 2025 08:37
Last Modified:	30 Oct 2025 08:37
URI:	http://repository.upi.edu/id/eprint/144710

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