Title :
Evaluation of performance characteristics of a brushless DC motor fed by a five-level inverter
Author :
Azadi, Morteza ; Nikzad, Vahid Reza
Author_Institution :
Fac. of Robot. & Electr. Eng., Shahrood Univ. of Technol., Shahrood, Iran
Abstract :
In this paper, the performance characteristics of a three-phase brushless DC motor with permanent magnet salient pole are investigated. The studied motor is a three-phase synchronous machine with permanent magnet rotor. Stator windings of the motor are fed by a three-phase five-level inverter. In order to control the motor speed, a Pi-controller is used. The parameters of PI controller are optimized using a simulink block called signal constraint. The voltages produced by the inverter are more close to the sine wave; as a result performance characteristics of the motor such as torque pulsations and speed ripples are improved. The simulations are done using matlabsimulink.
Keywords :
PI control; angular velocity control; brushless DC motors; invertors; machine control; permanent magnet motors; stators; torque; Matlab-Simulink; PI controller; brushless DC motor; five-level inverter; motor speed control; permanent magnet salient pole; signal constraint; speed ripples; stator windings; torque pulsations; Brushless DC motors; Inverters; Rotors; Stator windings; Torque; Five-Level Inverter; Permanent Magnet Brushless DC Motor; Speed Ripple; Torque Ripple Reduction;
Conference_Titel :
Electronics Computer Technology (ICECT), 2011 3rd International Conference on
Conference_Location :
Kanyakumari
Print_ISBN :
978-1-4244-8678-6
Electronic_ISBN :
978-1-4244-8679-3
DOI :
10.1109/ICECTECH.2011.5941666
