A systematic approach to study dc/ac and ac/dc converter's without the use of synchronous transformation is proposed. The use of a frequency-shift technique allows a straightforward analysis of single-phase and three-phase systems. The study of dc/ac and of ac/dc converters is reported to the study of dc/dc converters via a 50 Hz frequency-shift. The input admittance is calculated and measured for two study examples (a three-phase active rectifier and a single-phase photovoltaic inverter). These examples show that the purpose of a well designed controller for grid-connected converters is to minimize the input admittance in order to make the grid converter more robust to grid disturbance.
|Titolo:||Small-Signal Analysis of single-phase and three-phase dc/ac and ac/dc PWM converters with the frequency-shift technique|
|Data di pubblicazione:||2004|
|Nome del convegno:||IEEE International Symposium on Industrial Electronics, ISIE 2004|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1109/ISIE.2004.1571999|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|