Title :
Current regulated PWM-CSI induction motor drive system without a speed sensor
Author :
Nonaka, Sakutaro ; Neba, Yasuhiko
Author_Institution :
Dept. of Electr. Eng., Kinki Univ., Fukuoka, Japan
Abstract :
A current source inverter (CSI)-induction motor drive system without a speed sensor is considered. An input DC link current which is kept constant by a pulse-width-modulated converter with sinusoidal input current is supplied in the PWM inverter. The inverter output current with sinusoidal wave is directly regulated by employing the modulation index control of the PWM strategy. Experiments show that high-performance steady-state behavior and acceleration/deceleration characteristics with smooth drives and low noise of the motor have been obtained. It is demonstrated that the system with only the current sensor has the same steady-state and transient characteristics as the system with the voltage and the current sensors.<>
Keywords :
electric current control; electric drives; induction motors; invertors; machine control; pulse width modulation; CSI; DC link current; PWM inverter; acceleration/deceleration characteristics; current regulation; current sensor; current source inverter; induction motor drive system; modulation index control; pulse-width-modulated converter; sinusoidal input current; steady-state behavior; transient characteristics; Current supplies; Induction motor drives; Motor drives; Pulse inverters; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Sensor phenomena and characterization; Sensor systems; Steady-state;
Conference_Titel :
Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
0-7803-0635-X
DOI :
10.1109/IAS.1992.244274
