Title :
Soft starting method for single-phase PWM AC chopper fed three-phase induction motor
Author :
Bumroongphuck, Chavaporn ; Thanyaphirak, Veera ; Kinnares, Vijit
Author_Institution :
Dept. of Electr. Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper presents a soft starting method for a three phase induction motor operating from a single-phase PWM AC chopper in order to reduce high starting current caused by direct on line (DOL) starting. The MATLAB/Simulink is used for simulation. The motor stator windings are connected in a delta form with an external capacitor for operating from a single phase supply. With the proposed method, the initial voltage and ramping of voltage with a desired rate can be adjusted in order to obtain appropriate starting time and starting torque. The results of the simulation show that the motor starting current can be reduced and the capacitor value affects the starting time.
Keywords :
induction motors; stators; DOL starting; MATLAB-Simulink; delta form; direct on line starting; external capacitor; motor starting current; motor stator windings; single phase supply; single-phase PWM AC chopper; soft starting method; starting time; starting torque; three phase induction motor; Capacitors; Choppers (circuits); Energy consumption; Equations; Induction motors; Pulse width modulation; Torque;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2013 International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4799-1446-3
DOI :
10.1109/ICEMS.2013.6713183
