Title :
Performance analysis and comparison of reduced common mode voltage PWM and standard PWM techniques for three-phase voltage source inverters
Author :
Ün, Emre ; Hava, Ahmet M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara
Abstract :
This paper investigates the performance characteristics of the reduced common mode voltage (RCMV) PWM methods for three phase voltage source inverters and provides a comparison with the standard PWM methods. PWM methods are reviewed and their pulse patterns and common mode voltage patterns illustrated. The AC output current ripple, DC link input current ripple, and output voltage linearity characteristics of each modulation method are thoroughly investigated by analytical methods and simulations. The analysis leads to important results regarding the practical use of the investigated PWM methods. The paper aids in selection of appropriate PWM methods in drives that have low common mode voltage requirements
Keywords :
PWM invertors; electric drives; AC output current ripple; DC link input current ripple; common mode voltage PWM; common mode voltage patterns; modulation method; output voltage linearity; pulse patterns; three phase voltage source inverters; AC motors; Analytical models; Linearity; Low voltage; Performance analysis; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Switches; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620555
