Comparison Overview of Four AC/DC Front-Stage Converters Including an Original Self-Commutated Rectifier for On-Board Aircraft EHA

Frédéric Richardeau (1) , Hubert Piquet (2)

1 LAPLACE-CS - Convertisseurs Statiques
2 LAPLACE-GENESYS - Groupe ENergie Electrique et SYStémique

In more-electrical aircraft and embedded electrical networks, many front-stage converters are dedicated to supply actuators. The front stage of such applications is classically a low cost passive diode rectifier. To improve the features of this kind of rectifier, other topologies are proposed and compared. This paper compares four different AC/DC front-stage power converters to supply the voltage source inverter of an electrohydrostatic actuator (EHA) dedicated to on-board aircraft applications. One of proposed solutions is an original synchronous and self-commutated rectifier with a natural and rapid regenerative capability. All the proposed topologies are compared to a classical diode bridge on the basis of several criteria: improvement of performances, efficiency, optimization of electrical and thermal designs and minimization of size and mass. Simulation results and calculations put forward self-commutated rectifier' capabilities concerning the Si design factor, the integration index and the power losses.

Domaines: Energie électrique; Sciences de l'ingénieur [physics]; Electronique

Frédéric Richardeau, Hubert Piquet. Comparison Overview of Four AC/DC Front-Stage Converters Including an Original Self-Commutated Rectifier for On-Board Aircraft EHA. International Review of Electrical Engineering, 2008, 3 (5). ⟨hal-02514442⟩