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Título del libro: Conference Proceedings - Ieee Applied Power Electronics Conference And Exposition - Apec
Título del capítulo: Interleaved multi-cell isolated three-phase PWM rectifier system for aircraft applications

Autores UNAM:

Autores externos:

Idioma:
Inglés
Año de publicación:
2013
Palabras clave:

Aircraft applications; Efficiency and reliability; Electric power demands; High power density; Parallel-connected; Power distributions; Rectifier systems; Three-phase PWM rectifiers; Cytology; DC-DC converters; Efficiency; Electric rectifiers; Fault tolerance; Power electronics; Cells


Resumen:

Recently there has been an important increase in electric equipment, as well as, electric power demand in aircrafts applications. This prompts to the necessity of efficient, reliable, and low-weight converters, especially rectifiers from 115VAC to 270VDC because these voltages are used in power distribution. In order to obtain a high efficiency, in aircraft application where the derating in semiconductors is high, normally several semiconductors are used in parallel to decrease the conduction losses. However, this is in conflict with high reliability. To match both goals of high efficiency and reliability, this work proposes an interleaved multi-cell rectifier system, employing several converter cells in parallel instead of parallel-connected semiconductors. In this work a 10kW multi-cell isolated rectifier system has been designed where each cell is composed of a buck type rectifier and a full bridge DC-DC converter. The implemented system exhibits 91% of efficiency, high power density (10kW/10kg), low THD (2.5%), and n-1 fault tolerance which complies, with military aircraft standards. © 2013 IEEE.


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