Muhammad Nurtanto, Priangga Pratama Putra Haryanto, Bayun Matsaany, Mustofa Abi Hamid, Rabiman, Alias Masek
The global shift to renewable energy requires efficient generation systems, yet limited data exist on Permanent Magnet Synchronous Generators (PMSGs) under real operating conditions. Compact 12-slot/8-pole (12S8P) PMSGs, particularly for tropical regions with low and fluctuating wind speeds, face three main gaps: (i) absence of validated efficiency-torque maps at 1,000-5,000 RPM, (ii) unresolved trade-offs between cogging-torque suppression and back-EMF/efficiency, and (iii) lack of design guidance for small-medium wind energy conversion systems (WECS). To address these issues, this study introduces an integrative FEM-to-bench approach that combines 2-D MagNet Infolytica modeling with laboratory validation. Simulations predict flux distribution, back-EMF constant (Ke), torque, power, and efficiency across resistive loads (10-50 Ω), followed by controlled bench testing to verify results. Findings show near-linear increases in power and torque with speed, with a peak efficiency of ≈approximately 92% at 5,000 RPM with a 10 Ω load, and a kinetic efficiency of approximately 0.018 V/rpm. At maximum speed, the 30 Ω configuration delivers the highest torque and ∼10.5 kW output, establishing a high-performance operating region. Unlike simulation-only studies, this method delivers experimentally validated performance maps, improving design accuracy and operational strategies for 12S8P PMSGs in tropical small-medium WECS. © 2025 IEEE.
Universitas Negeri Jakarta, Department of Technological and Vocational Education, Depok, Indonesia; Politeknik Negeri Jakarta, Department of Mechanical Engineering, Depok, Indonesia; Universitas Sultan Ageng Tirtayasa, Department of Electrical Engineering Vocational Education, Banten, Indonesia; Universitas Sarjanawiyata Tamansiswa, Department of Mechanical Engineering Education, Yogyakarta, Indonesia; Universiti Tun Hussein Onn Malaysia, Department of Professional Education, Johor, Malaysia
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