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All Journal Electron: Jurnal Ilmiah Teknik Elektro Jurnal Riset Multidisiplin Edukasi
Nurmela
Universitas Siliwangi
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Other

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Filter Hybrid Double-Tuned dan High-Pass untuk Mitigasi Harmonisa pada Sistem HVAC Inverter Mochamad Irlan Malik; Yuda Muhammad Hamdani; Rian Nurdiansyah; Linda Faridah; Nurmela
ELECTRON Jurnal Ilmiah Teknik Elektro Vol 6 No 2: Jurnal Electron, November 2025
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/electron.v6i2.387

Abstract

Inverter-based Heating, Ventilation, and Air Conditioning (HVAC) systems are increasingly utilized in industrial settings for their superior energy efficiency and controllability. Despite these advantages, nonlinear switching in inverters generates significant harmonic distortion, particularly at lower-order frequencies such as the 3rd and 5th, which can compromise power quality, reduce system lifespan, and lead to non-compliance with regulatory standards. This study proposes a hybrid passive filter solution—combining a Double Tuned Filter (DTF) and a High Pass Filter (HPF)—to mitigate harmonic distortion in an industrial HVAC system. Field data collected using a Power Quality Analyzer (PQA) revealed a 3rd-order Individual Harmonic Distortion of Current (IHDi) of 12.9%, far exceeding the 4.0% threshold specified in IEEE 519:2022. The hybrid filter was analytically designed and validated through MATLAB/Simulink simulation. Post-simulation results demonstrated effective mitigation of Total Harmonic Distortion (THD) to 3.45%, with the 3rd-order IHDi mitigated to 3.42%, achieving full compliance with IEEE 519:2022. Furthermore, the hybrid filter preserved voltage waveform quality and suppressed high-order harmonics without incurring additional energy losses or resonance issues. The combination of DTF and HPF offers wide-spectrum harmonic mitigation and enhanced power system stability. This solution is well-suited for high-load, scalable infrastructures aligned with Industry 4.0 requirements. The study concludes that passive hybrid filters are a reliable and cost-effective strategy for harmonic suppression, and future work should explore real-time adaptive control and hybrid active-passive configurations for enhanced dynamic performance
ANALISIS DAMPAK PENETRASI TINGGI PLTS TERHADAP RESPONS FREKUENSI PADA SISTEM TRANSMISI INTERKONEKSI Nurul Muhammad Farouq; Nurmela
Jurnal Riset Multidisiplin Edukasi Vol. 3 No. 6 (2026): Jurnal Riset Multidisiplin Edukasi (Juni 2026)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v3i6.2169

Abstract

The integration of Solar Photovoltaic (PV) power plants into power systems has become one of the main strategies to support Indonesia’s energy transition targets as outlined in the 2025–2034 Electricity Supply Business Plan (RUPTL). One of the planned projects is a 126 MW PV power plant that will be connected to the 150 kV Central Kalimantan transmission system. Although it increases the utilization of renewable energy, high PV penetration may affect system frequency response due to the reduced contribution of synchronous generator inertia. This study aims to analyze the impact of PV integration on system frequency response using Root Mean Square (RMS) simulations in DIgSILENT PowerFactory. The evaluation was conducted through PV disconnection scenarios at penetration levels of 25%, 50%, 75%, and 100%, as well as the outage of the largest generating unit. The results show that increasing PV penetration decreases the frequency nadir from 49.944 Hz to 49.778 Hz and increases the Rate of Change of Frequency (RoCoF) from 0.530 Hz/s to 2.154 Hz/s. In the largest generator outage scenario, RoCoF increases from 1.199 Hz/s to 1.257 Hz/s without significant changes in the other frequency response parameters. The results indicate that the integration of the 126 MW PV power plant can still be accommodated by the 150 kV Central Kalimantan system without significant degradation of frequency response performance.
Co-Authors Faridah, Linda Mochamad Irlan Malik Nurul Muhammad Farouq Rian Nurdiansyah Yuda Muhammad Hamdani