Mauricio Aredes

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The instantaneous active and reactive power theory or the p-q Theory is widely used to design controllers for active filters. This paper deals with some problems due to the misinterpretations of this theory. A historical background of the theory is presented and the problem caused by distorted voltages at the point of common connection (PCC) is analyzed. In(More)
Problems related to power quality, which in the last years were responsible only for small losses in low-voltage distribution systems, are now causing damage to power apparatuses and financial losses also in medium-voltage systems. The necessity of a better quality of power supply encourages the development of new specific custom power devices directly(More)
Certainly, power-electronics devices have brought about great technological improvements. However, the increasing number of power-electronics-driven loads used generally in the industry has brought about uncommon power quality problems. In contrast, power-electronics-driven loads generally require ideal sinusoidal supply voltage in order to function(More)
and especially to my fiancée Isabella, I also wish to express my sincere thanks for giving me help, incentive and affection during my stay in Germany. ABSTRACT The use of soft-switching converters in association with switched reluctance motors (SRM) potentially allows the fabrication of motor drives with increased power density and with better efficiency(More)
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