Title :
Modified low switching frequency space vector modulators for high power multi-module converters
Author :
Saeedifard, M. ; Bakhshai, A.R. ; Joos, G. ; Jain, P.
Author_Institution :
Dept. of Electr. Eng., Isfahan Univ. of Technol., Iran
Abstract :
Force-commutated PWM controlled multi-converter systems have been proposed for high power applications, particularly reactive power compensation and FACTS devices. Advantages of the space vector modulation make this PWM technique the preferred technique especially for high power applications. This paper presents new low switching frequency SVM strategies that lead to symmetrical and high quality output voltages fulfilling the high power application standards. Pattern generation options are analyzed and system waveforms are presented for different switching frequencies and number of modules. Results are validated by simulation and confirmed by experiments on a 5 kVA prototype unit.
Keywords :
PWM power convertors; commutation; harmonic distortion; harmonics suppression; power conversion harmonics; switching convertors; 5 kVA; FACTS devices; PWM technique; different switching frequencies; force-commutated PWM controlled multi-converter systems; high power application standards; high power multi-module converters; high quality output voltages; low switching frequency SVM strategies; modified low switching frequency space vector modulators; pattern generation options; reactive power compensation; series connected GTO-based multi-module converters; space vector modulation; symmetrical output voltages; voltage THD; Control systems; Force control; Frequency modulation; Pulse width modulation; Reactive power control; Space vector pulse width modulation; Support vector machines; Switching converters; Switching frequency; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179267