Title :
PWM control method of multiple inverters for Maglev
Author :
Imaie, Kazuhiro ; Ito, Satoru ; Ueda, Shigeta
Author_Institution :
Hitachi Ltd., Ibaraki, Japan
Abstract :
A new pulse width modulation (PWM) strategies in a current and speed control circuit for multiple inverters employing large capacity gate turn-off (GTO) thyristors assuming a magnetically levitated transportation system (Maglev) as a load is presented. To realize the strategies, the necessity of the dead-time compensation scheme is also explained. Simulated results and experimental results of small model multiple inverters and a synchronous motor with multi-CPU constructed control circuits are presented.<>
Keywords :
compensation; electric current control; invertors; magnetic levitation; pulse width modulation; railways; velocity control; PWM control method; dead-time compensation scheme; magnetically levitated transportation system; multiple inverters; speed control circuit; Circuit simulation; Magnetic circuits; Magnetic levitation; Magnetic modulators; Pulse circuits; Pulse inverters; Pulse width modulation inverters; Thyristors; Transportation; Velocity control;
Conference_Titel :
Power Conversion Conference, 1993. Yokohama 1993., Conference Record of the
Conference_Location :
Yokohama, Japan
Print_ISBN :
0-7803-0471-3
DOI :
10.1109/PCCON.1993.264247
