The back emf harmonics of a permanent magnet (PM) synchronous motor is a major source of torque ripple. For torque control applications including column fitted MDPS (motor driven power steering) systems, it is essential to reduce the mechanical vibrations due to torque ripples at low speeds. In this paper, a torque ripple reduction algorithm for interior PM synchronous motors is proposed. The h...

Interior permanent magnet synchronous motors (IPMSMs) are used for various applications and high efficiency control is required. Maximum torque per ampere (MTPA) a method to IPMSMs with efficiency. However, since the motor parameters vary magnetic saturation, MTPA cannot be easily realized. Here in, we propose fully online automatic method. To find point while driving motor, it necessary predic...

Pengemudian motor sinkron magnet permanen (PMSM) mempunyai banyak keuntungan dibandingkan pengemudian motor lainnya, misal efisiensi tinggi dan kerapatan daya tinggi. Khususnya, PMSM adalah membuka peradaban baru dan semakin intensif dipelajari para peneliti, ilmuwan dan insinyur. Makalah ini menguraikan sebuah pengendali baru unjuk kerja tinggi berbasis algoritma genetik. Skema ini memungkinka...

This article presents a modeling approach and control strategy for multiphase surface-mounted permanent magnet synchronous machine drives. The mathematical model is completely general with respect to the parameters winding configuration. It also intrinsically considers effects of eventual constraints phase currents, generated from electrical connections among windings or resulting faults. curre...

This paper presents a torque error compensation algorithm for a surface mounted permanent magnet synchronous machine (SPMSM) through real time permanent magnet (PM) flux linkage estimation at various temperature conditions from medium to rated speed. As known, the PM flux linkage in SPMSMs varies with the thermal conditions. Since a maximum torque per ampere look up table, a control method used...

This paper establishes the state-space model of cup rotor permanent-magnet doubly fed machine in synchronous reference frame. The feedback-linearization control method is used to realize decoupling flux and torque. Then, upper lower load torque boundaries are solved. Furthermore, minimize stator current magnitude under a certain torque, maximum per ampere (MTPA) derived. Finally, simulation res...

This paper analyzed the effect of temperature on the permanent magnet flux and output torque. The major parameter which will impact the torque control accuracy of a surface mounted permanent magnet motor is the variation of the permanent magnet temperature. In addition, the temperature variation of the permanent magnet will also influence the maximum torque per ampere of the motor. To analyze t...