Dual structured aircraft engine starter/generator

Details Dual structured aircraft engine starter/generator Dual structured aircraft engine starter/generator

F - Mech Eng,Light,Heat,Weapons

02

N

F02N 11/04 (2006.01) F01D 15/10 (2006.01) F02C 7/268 (2006.01)

Patent

CA 2684483

An aircraft starting and generating system includes a first starter/main machine assembly that includes a first exciter and a first main machine, and second starter/main machine assembly that includes a second exciter and a second main machine. The system also includes a permanent magnet generator (PMG) that is connected to the first and second starter/main machine assemblies. The system further includes a first inverter/converter/controller (ICC) that is connected to the first starter/main machine assembly and to the PMG, and a second ICC that is connected to the second starter/main machine assembly and to the PMG. The first and second ICCs generate AC power to respective drive the first and second starter/main machine assemblies in a start mode of the starting and generating system for starting a prime mover of the aircraft, and the first and second ICCs convert AC power, respectively obtained from the PMG after the prime mover has been started, to DC power in a generate mode of the starting and generating system.

L'invention concerne un système de démarrage et de production d'électricité pour avion qui comprend un premier ensemble démarreur/machine principale, comprenant un premier excitateur et une première machine principale, et un second ensemble démarreur/machine principale, comprenant un second excitateur et une seconde machine principale. Le système comprend aussi une génératrice à aimants permanents (PMG) qui est connectée aux premier et second ensembles démarreur/machine principale. Le système comprend en outre un premier inverseur/convertisseur/régulateur de charge (ICC), qui est connecté au premier ensemble démarreur/machine principale et à la PMG, et un second ICC, qui est connecté au second ensemble démarreur/machine principale et à la PMG. Les premier et second ICCs produisent du courant alternatif pour entraîner respectivement les premier et second ensembles démarreur/machine principale dans un mode démarrage du système de démarrage et de production d'électricité, afin de démarrer un moteur principal de l'avion, et les premier et second ICCs convertissent le courant alternatif, reçu respectivement de la PMG après démarrage du moteur principal, en courant continu dans un mode production du système de démarrage et de production d'électricité.

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