Hari Prasetijo, Mohammad Khairudin, Ketut Wirtayasa, Daru Tri Nugroho, Yogi Ramadhani
This study presents a comprehensive design and performance validation of a three-phase, 900-watt Inner- Rotor Radial Flux Surface-Mounted Permanent Magnet Synchronous Generator (IR-RF-SPMSG). The proposed generator, featuring 10 poles and 30 slots with a 0.9 pole arc ratio, is designed analytically and simulated using 3D finite element modeling. The key contributions include the validation of the air-gap flux density using leakage and reluctance correction factors, the detailed modeling of the leakage inductance components, and an accurate three-phase winding configuration. The comparison between the analytical and simulation results yields errors below 1% for the air-gap flux density (Bg), back-EMF (Eph), phase current (Iph), terminal voltage (Vph), and three-phase output power (Sout). The methodology significantly improves the terminal voltage prediction under load and ensures waveform integrity, offering a reliable design reference for low-speed renewable energy systems. © (c) by the authors
Department of Electrical Engineering, Universitas Jenderal Soedirman, Purwokerto, Indonesia; Doctoral Program in Ilmu Teknik, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia; Department of Electrical Engineering, Universitas Negeri Yogyakarta, Yogyakarta, Indonesia; Research Center for Energy Conversion and Conservation, National Research and Innovation Agency, Bandung, Indonesia
