Title :
SVM PWM strategy for high power 3-level inverters in variable frequency applications
Author :
Kolenchery, S.S. ; Vaidya, V.C. ; Mangal, Madhu
Author_Institution :
Nat. Radio & Electron. Co. Ltd., Bombay, India
Abstract :
A strategy for the implementation of space vector PWM in a 3-level inverter for variable frequency applications is explained in this paper. The strategy uses the nearest three vector (NTV) method and considers the switching frequency limitations of GTO thyristors used in high power inverters. Typical waveforms and harmonic analysis of the output voltage waveforms for various carrier ratios and modulation depths are presented. This scheme is to be implemented in a 4500 V DC, 3000 kVA inverter being developed
Keywords :
PWM invertors; harmonic analysis; power system harmonics; switching circuits; thyristor convertors; 3000 kVA; 4500 V; GTO thyristors; SVM PWM strategy; carrier ratios; harmonic analysis; high power 3-level inverters; modulation depths; nearest three vector method; output voltage waveforms; space vector PWM; space vector modulation; switching frequency limitations; variable frequency applications; DC motors; Pulse width modulation; Pulse width modulation inverters; Space technology; Support vector machines; Switching frequency; Synchronous motors; Thyristors; Traction motors; Voltage;
Conference_Titel :
Power Electronics, Drives and Energy Systems for Industrial Growth, 1996., Proceedings of the 1996 International Conference on
Conference_Location :
New Delhi
Print_ISBN :
0-7803-2795-0
DOI :
10.1109/PEDES.1996.539540
