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Título del libro: Conference Proceedings - Ieee Applied Power Electronics Conference And Exposition - Apec
Título del capítulo: Current sensorless power factor correction based on digital current rebuilding

Autores UNAM:
OSCAR PROSPERO GARCIA;
Autores externos:

Idioma:
Inglés
Año de publicación:
2009
Palabras clave:

Current loop; Current sensorless; Current sensors; Digital control techniques; Digital controllers; Final objective; Input and outputs; Input current; Low costs; Power factor corrections; RC filter; Slow dynamics; Application specific integrated circuits; Digital control systems; Electric filters; Electric power factor; Power electronics; AC generator motors


Resumen:

A new digital control technique for power factor correction is presented. The main novelty of the method is that there is no current sensor. Instead, the input current is digitally rebuilt, using the estimated input current for the current loop. Apart from that, the ADCs used for the acquisition of the input and output voltages have been designed ad-hoc. Taking advantage of the slow dynamic behavior of these voltages, almost completely digital ADCs have been designed, leaving only a comparator and an RC filter in the analog part. The final objective is obtaining a low cost digital controller which can be easily integrated in an ASIC along with the controller of paralleled and subsequent power sections. ©2009 IEEE.


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