Title :
An investigation of the natural balancing mechanisms of cascaded active-rectifiers
Author :
van der Merwe, J.W. ; du T.Mouton, H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Stellenbosch, Stellenbosch, South Africa
Abstract :
The natural balancing processes of a 2-cell cascaded active rectifier converter is investigated in the frequency domain. Two balancing mechanisms are identified, weak and strong. Expressions for the time constant of both mechanisms are derived. The limitations and applicability of both mechanisms are discussed. The results are compared to time domain simulation results for the constant duty cycle case. Finally the measured results of a practical system operating as power factor correcting rectifier are presented.
Keywords :
frequency-domain analysis; power factor correction; rectifying circuits; time-domain analysis; 2-cell cascaded active rectifier converter; constant duty cycle; frequency domain; natural balancing; power factor correcting rectifier; time domain simulation; Converters; Convolution; Frequency domain analysis; Steady-state; Switches; Switching circuits; Switching frequency;
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International
Conference_Location :
Ohrid
Print_ISBN :
978-1-4244-7856-9
DOI :
10.1109/EPEPEMC.2010.5606840
