Title :
Comparison between sinusoidal PWM and Space Vector Modulation Techniques for NPC inverters
Author :
Bellini, Armando ; Bifaretti, Stefano
Author_Institution :
Tor Vergata Univ. of Rome, Rome
Abstract :
The supported voltages by new high power IGBTs can reach 6.5 kV; so these devices are particularly suited for railways traction drives inverters. To this aim, however, it is still convenient to employ a neutral point clamped (NPC) structure based on 3.3 kV IGBTs. The paper analyzes and compares two different kinds of modulation techniques, specifically designed for three-phase NPC inverters. The techniques are derived by the Sinusoidal PWM and space vector modulation techniques used in classical two level industrial inverters. The simulation results are validated by experimental ones obtained employing a NPC inverter prototype and a control board, based on a TI TMS320F2407 microcontroller.
Keywords :
PWM invertors; insulated gate bipolar transistors; microcontrollers; railway electrification; traction motor drives; NPC inverters; TMS320F2407 microcontroller; high power IGBT; neutral point clamped structure; railways traction drives inverters; sinusoidal PWM; space vector modulation techniques; voltage 3.3 kV; Commutation; Current control; Frequency; Hysteresis; Insulated gate bipolar transistors; Pulse width modulation inverters; Space vector pulse width modulation; Stators; Switches; Voltage; Converters; Digital signal processors; Inverters; Microcontrollers; Modulation; Power electronics;
Conference_Titel :
Power Tech, 2005 IEEE Russia
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-93208-034-4
Electronic_ISBN :
978-5-93208-034-4
DOI :
10.1109/PTC.2005.4524414
