RANCANG BANGUN KOMPOR INDUKSI 48V DC HALF-BRIDGE SERIES-RESONANT INVERTER DENGAN FREQUENCY-TRACKING MENGGUNAKAN FAST FOURIER TRANSFORM BERBASIS ESP32

Arya Kusuma Nugraha, . (2026) RANCANG BANGUN KOMPOR INDUKSI 48V DC HALF-BRIDGE SERIES-RESONANT INVERTER DENGAN FREQUENCY-TRACKING MENGGUNAKAN FAST FOURIER TRANSFORM BERBASIS ESP32. Skripsi thesis, Universitas Pembangunan Nasional Veteran Jakarta.

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Abstract

Variations in cookware material and diameter cause shifts in the equivalent parameters of the resonant tank in induction cookers. Operating the inverter at a fixed frequency under these conditions can reduce heating efficiency and overall system performance. This study aims to design a 48V DC induction cooker based on a Half-Bridge Series-Resonant Inverter (HB-SRI) and evaluate the application of a frequency-tracking method using the Fast Fourier Transform (FFT) algorithm on an ESP32 microcontroller. Resonant frequency estimation was performed via a one-shot procedure by analyzing the first and third harmonic components of the resonant current. Performance testing compared a non-tracking mode at a fixed frequency of 20.55 kHz with the FFT-tracking mode. The applied loads included stainless-steel and carbon-steel pans with diameters of 16 cm and 18 cm. The experimental results showed that the estimated frequencies ranged from 22.93 to 26.34 kHz with a low data spread, indicated by standard deviations of 0.13–0.71 kHz and Relative Standard Deviation values of 0.51–2.82%. The highest water-heating efficiency reached 77.05% using the 16 cm stainless-steel pan. In conclusion, the implementation of FFT-based one-shot frequency-tracking effectively adjusts the operating frequency to match load characteristics, thereby significantly improving heating efficiency and performance compared to fixed-frequency operation.

Item Type: Thesis (Skripsi)
Additional Information: [No.Panggil: 2210314011] [Pembimbing 1: Ferdyanto] [Pembimbing 2: Ni Putu Devira Ayu Martini] [Penguji 1: Henry Binsar Hamonangan Sitorus] [Penguji 2: Luh Krisnawati]
Uncontrolled Keywords: Induction Cooker, Half-Bridge Series-Resonant Inverter, Fast Fourier Transform, Frequency Tracking.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Fakultas Teknik > Program Studi Teknik Elektro (S1)
Depositing User: ARYA KUSUMA NUGRAHA
Date Deposited: 28 Aug 2026 02:54
Last Modified: 28 Aug 2026 02:54
URI: http://repository.upnvj.ac.id/id/eprint/52451

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