Direct torque control (DTC) is one of the most prominent techniques used by permanent magnet synchronous motor (PMSM) drives in industry applications. Nevertheless, presence hysteresis controllers and inaccurate voltage switching table traditional DTC results higher flux ripple. This study proposes an enhanced functioned Surface-mounted PMSM (S-PMSM) drive with mitigation The operation relies o...

Optimization of specific power of axial flux permanent magnet brushless DC (PMBLDC) motor based on genetic algorithm optimization technique for an electric vehicle application is presented. Double rotor sandwiched stator topology of axial flux permanent magnet brushless DC motor is selected considering its best suitability in electric vehicle applications. Rating of electric motor is determined...

A method is proposed in this article to place sensors an electrical machine order be able reconstruct the magnetic field distribution. This based on empirical interpolation combined with Maxvol technique. The results applied a surface-mounted permanent magnet at no load show that distribution can accurately reconstructed even when sensor location imposed airgap of rotating machine.

The authors present a general computation of the time-varying magnetic flux density distribution of high-speed surface mounted permanent magnet (PM) motors (SMPMM). It deals with an analytical model (AM) which is based on a two-dimensional (2-D) analysis in polar co-ordinates and solves the governing Helmholtz/Laplace field equation in the airgap/magnet/rotor yoke regions, with due account of t...

In order to avoid the unsafe operation and raise efficiency of yokeless and segmented armature axial flux motors at high speed, the control current of air gap flux is expected to be as small as possible with the same field-weakening effect. To reduce the control complexity, a new structure of module poles with a combination of permanent magnet and soft magnetic material is proposed, which has t...

Abstract – For precisely regulating the speed of a permanent magnet synchronous motor system with unknown load torque disturbance and disturbance inputs, an LMI-based sliding mode control scheme is proposed in this paper. After a brief review of the PMSM mathematical model, the sliding mode control law is designed in terms of linear matrix inequalities (LMIs). By adding an extended observer whi...