It is currently possible to use 2 batteries with different voltages on a petrol-driven vehicle: E1 with 42 V for power devices, start-up, alternator, auxiliary motors, E2 with 12 or 14 V for digital, calculation or radio circuits. This makes it possible to increase the power and output of electric devices. The two batteries must be recharged using a single alternator. An initial solution for this consists in the use of two converters. The alternator firstly recharges the highest voltage battery, E1, using a rectifier or a switching mode converter, E1 then recharges the lower voltage battery E2, through a separate DC/DC step-down chopper. This is the traditional solution. Another solution would make it possible to economise using the DC/DC chopper by recharging the 2 batteries through a single switching mode converter. The article studies the resulting device and simulates its functioning in the case of an induction generator. It is also possible to imagine this solution with a synchronous alternator.
Recharge de deux batteries a partir d'une generatrice asynchrone couplee a un seul convertisseur
Wiederaufladung zweier Batterien unterschiedlicher Spannung mit einem Asynchrongenerator und nur einem Gleichspannungswandler
2005
10 Seiten, 17 Bilder, 1 Tabelle, 7 Quellen
Aufsatz (Zeitschrift)
Französisch
TURBOPROPULSEUR COMPRENANT UNE GENERATRICE D'ELECTRICITE INTEGREE
Europäisches Patentamt | 2019
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