Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Air-gap Control According to Y and Delta Connections of Double-sided Air-gap Permanent Magnet Synchronous Motor with Independent Three-phase Structure
Authors Chan-Nyeong Heo ; Seon-Hwan Hwang
Page pp.249-255
ISSN 1229-2214
Keywords Double-sided air-gap ; Independent three-phase structure ; Vector control ; Y and Delta connections ; Air-gap control
Abstract This paper presents air-gap control according to Y and Delta connections of a double-sided air-gap permanent magnet synchronous motor (DA-PMSM) with independent three-phase structure. In particular, the DA-PMSM used in this study can be applied to low-speed and high-torque applications, such as wind turbines, tidal power generations, and electric propulsion ships, because of its modular stators and a rotor with numerous permanent magnets. Unlike conventional three-phase machines, the DA-PMSM has a symmetrical configuration with double-sided air-gap. Therefore, Y/Delta winding connections and serial/parallel configurations between stator modules are possible. To identify the DA-PMSM operating characteristics, mathematical modeling is analyzed according to the Y/Delta connections. Moreover, air-gap control performances by applying the winding connection methods are verified through experimental results.