A New Axial-Flux Dual-Rotor Variable Reluctance Resolver

Onsa M., AYDIN M.

IEEE Transactions on Magnetics, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1109/tmag.2026.3699967
  • Dergi Adı: IEEE Transactions on Magnetics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Compendex, INSPEC, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
  • Anahtar Kelimeler: Axial-flux resolver, dual-rotor resolver, finite element analysis, rotor position sensing, variable reluctance resolver
  • Kocaeli Üniversitesi Adresli: Evet

Özet

This paper presents a novel axial-flux dual-rotor variable reluctance resolver (AF-VRR) developed for high-precision rotor position sensing in permanent magnet motor drive systems. The proposed topology employs a single toroidal excitation winding located around the stator core, enabling simultaneous excitation of both stator surfaces and providing a compact dual-rotor configuration. The winding layout is designed to ensure symmetric magnetic flux distribution and accurate sine–cosine signal generation. An initial electromagnetic design is developed based on resolver design constraints and evaluated using both two-dimensional (2D) linearized and full three-dimensional (3D) finite element analysis (FEA). A prototype of the proposed resolver is manufactured and experimentally tested. The measured results show good agreement with simulation results. The proposed AF-VRR demonstrates a compact structure, reduced winding complexity, and reliable signal generation, making it suitable for integration in electric motor drive systems.