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All Journal Semar : Jurnal Sosial dan Pengabdian Masyarakat Journal of Fuzzy Systems and Control (JFSC) Control Systems and Optimization Letters
Warindi Warindi
Universitas Sebelas Maret
Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Social Sciences Other

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Comparative Evaluation of Transfer Function and Detailed Switching Models for a PID-Controlled Single-Phase DC–AC Conversion System Fifin Nugroho; Hari Maghfiroh; Warindi Warindi; Fahmizal Fahmizal
Control Systems and Optimization Letters Vol 4, No 2 (2026)
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/csol.v4i2.324

Abstract

Transfer-function (TF) models are widely used in power electronics because of their simplicity and suitability for controller design. However, their ability to represent practical converter behavior is limited since switching actions and nonlinear effects are neglected. This paper presents a comparative evaluation of transfer-function and detailed switching models for a PID-controlled single-phase inverter system consisting of a DC–DC boost converter and a full-bridge inverter employing unipolar sinusoidal pulse width modulation (SPWM). The system is designed to convert a 46 VDC input into a regulated 220 VAC (RMS), 50 Hz output. Both models were developed in MATLAB/Simulink and evaluated under identical operating conditions. The results show that the TF model provides a computationally efficient representation suitable for preliminary controller design, while the detailed switching model captures switching-induced ripple, transient dynamics, and harmonic distortion. The detailed model achieved stable 220 VAC operation with a total harmonic distortion (THD) of 1.91%, satisfying IEEE Standard 519 requirements. The comparative analysis indicates that controller parameters obtained from the TF model can provide a useful initial tuning reference before refinement in the detailed switching model. Since the study is based exclusively on simulation, experimental validation remains necessary. The results suggest that TF models are suitable for early-stage controller development, whereas detailed switching models are required for realistic performance assessment and validation.
PEMBERDAYAAN PENGRAJIN GENTENG KELURAHAN KARANGGENENG BOYOLALI MELALUI IMPLEMENTASI MESIN FURNACE ELEKTRIK MENUJU TRANSFORMASI INDUSTRI RENDAH EMISI BERBASIS ENERGI BARU TERBARUKAN Mufti Reza Aulia Putra; Muhammad Nizam; Feri Adriyanto; Inayati Inayati; Warindi Warindi; Joko Slamet Saputro; Miftahul Anwar; Agus Ramelan; Hari Magfiroh; Chico Hermanu Brilianto
SEMAR : Jurnal Sosial dan Pengabdian Masyarakat Vol. 4 No. 3 (2026): SEMAR : Jurnal Sosial dan Pengabdian Masyarakat
Publisher : CV. Kalimasada Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59966/semar.v4i3.2845

Abstract

The roofing tile industry in Karanggeneng Village, Boyolali Regency, remains dependent on conventional firing systems using firewood, resulting in low thermal efficiency, unstable temperature distribution, inconsistent product quality, and relatively high carbon emissions. These limitations reduce production efficiency and hinder the competitiveness of small-scale roofing tile enterprises. This community service program aimed to empower local roofing tile craftsmen through the implementation of an electric furnace equipped with an insulated heating chamber, multi-level product racks, a controlled electrical heating system, and an operational training program. The program was conducted using a participatory approach consisting of problem identification, system design, prototype fabrication, installation, equipment handover, technical training, operational assistance, and evaluation. The implementation successfully produced an operational furnace prototype that provides more controlled heating conditions while improving craftsmen's understanding of equipment operation, electrical safety, and energy management. The collaboration between Universitas Sebelas Maret and community partners also strengthened knowledge transfer and technology adoption within the local industry. This community service contributes directly to Sustainable Development Goal (SDG) 4 by enhancing community competencies through technical education and training, and SDG 17 by strengthening partnerships among universities, local communities, and stakeholders to support sustainable industrial transformation.
Electromagnetic Field Assessment of Indonesian 500-kV Double-Circuit Transmission Lines Using Charge Simulation and Biot-Savart Methods: Validation, Benchmarking, and Configuration Evaluation Warindi Warindi; Naufal Putra Pradana
Journal of Fuzzy Systems and Control Vol. 4 No. 3 (2026): Vol. 4 No. 3 2026
Publisher : Peneliti Teknologi Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59247/jfsc.v4i3.424

Abstract

This paper presents a mesh-free computational framework for assessing power-frequency electric and magnetic fields generated by 500-kV, 50-Hz overhead transmission lines in Indonesia. The framework integrates the Charge Simulation Method (CSM) for electric-field calculation and the Biot-Savart (BS) formulation for magnetic-field prediction within a GNU Octave environment. The proposed approach was validated against field measurements and benchmarked against Finite Element Method Magnetics (FEMM) using root mean square error (RMSE), mean absolute error (MAE), and mean absolute percentage error (MAPE). Validation results demonstrated good agreement with measurements, achieving MAPE values of 3.00% and 7.24% for electric-field and magnetic-field predictions, respectively, outperforming FEMM in both cases. Computational benchmarking revealed substantial efficiency improvements, with execution-time reductions of approximately 29-31 times for electric-field calculations and 83-86 times for magnetic-field calculations relative to FEMM. The validated framework was subsequently applied to evaluate three 500-kV double-circuit transmission-line configurations commonly used in Indonesia, namely the super-bundle, low-reactance, and double-delta arrangements. Although all configurations satisfied the exposure limits specified by SNI 04-6950-2003, WHO, and ICNIRP guidelines, significant differences were observed in their electromagnetic-field performance. The double-delta configuration consistently produced the lowest electric-field and magnetic-field levels, reducing peak field exposure by up to 61% and 72%, respectively, compared with the super-bundle arrangement. The proposed CSM-BS framework provides an accurate and computationally efficient tool for transmission-line electromagnetic-field assessment, conductor arrangement assessment, and compliance verification.
Co-Authors Agus Ramelan Chico Hermanu Brilianto Fahmizal Fahmizal Feri Adriyanto Fifin Nugroho Hari Magfiroh Hari Maghfiroh Inayati Inayati Joko Slamet Saputro Miftahul Anwar Mufti Reza Aulia Putra Muhammad Nizam Naufal Putra Pradana