femm_pmsmgui

FEMM PMSM Motor GUI — V1
A multi-functional desktop GUI that automates finite-element (FEMM) analysis of permanent-magnet synchronous motors (PMSM/IPM).
Built on top of FEMM via pyfemm, this tool wraps the repetitive, error-prone steps of motor FEA — rotor rotation sweeps, current injection, dq transforms, and post-processing — into a single point-and-click interface, so you can go from a .fem model to full motor characteristics in minutes.
No-load analysis
Loaded analysis
Inductance & parameters
System-level
Practical touches
Author
LEEBOE / 李柏毅
National Formosa University · FAMAX Co., Ltd

Features

No-load analysis Back-EMF waveform & constant (at any user speed) Flux linkage (λ) per phase Cogging torque (peak-to-peak) Line-to-line EMF harmonic spectrum + THD (least-squares fit up to 21st order)
Loaded analysis Load torque vs angle (FOC current, γ angle), torque ripple, efficiency Id/Iq (field-weakening) operating-point analysis Three-phase line-voltage RMS check (instantly spot a mis-wound phase) Inductance & parameters Ld / Lq measurement (frozen-permeability dq method, λpm, saliency, cross-coupling) Ld/Lq saturation curves (Ld–id, Lq–iq vs current) DC terminal inductance (LCR-style two-phase injection, Lmax/Lmin)