سال انتشار: ۱۳۹۱

محل انتشار: بیستمین کنفرانس مهندسی برق ایران

تعداد صفحات: ۶

نویسنده(ها):

Reza Heidari – Department of Electrical Engineering, Shahrekord University, Iran
Gholam Reza Arab Markadeh – Department of Electrical Engineering, Shahrekord University, Iran
Saeed Abazari – Department of Electrical Engineering, Shahrekord University, Iran,
Mohsen Hosseinzadeh Soreshjani – Department of Electrical Engineering, Shahrekord University, Iran

چکیده:

Direct torque control (DTC) can directly control the inverter states in order to reduce the torque and flux linkage errors within the prefixed band limits. In this paper a DTCtechnique is presented for brushless dc (BLDC) motors with nonsinusoidal back-EMF using four-switch inverter in the constant torque region. In addition, for torque ripple reductionin two phase conduction mode, a novel switching pattern incorporating with the voltage vector look-up table is designedin order to regulate the controllable phases torques (Tea , Teb). Simulation results approve that the proposed method reducestorque ripple in contrast with prior research