M. Naidu et al., A HIGH-EFFICIENCY HIGH-POWER-GENERATION SYSTEM FOR AUTOMOBILES, IEEE transactions on industry applications, 33(6), 1997, pp. 1535-1543
This paper presents a new scheme for the efficient generation of high
electric power demanded for future automobiles, The new system consist
s of a permanent-magnet (PM) alternator having high-energy MAGNEQUENCH
(MQ) magnets and split winding and a novel electronic voltage-regulat
ion scheme, A proof-of-concept system, capable of providing 100/250 A
(idle/cruising) at 14 V, has been built and tested in the laboratory w
ith encouraging results, This high output is provided at 15-20 percent
age points higher efficiencies than conventional automotive alternator
s, which translates into considerable fuel economy savings, The system
is 8 dB quieter and has a rotor inertia of only 2/3 that of an equiva
lent production alternator, thus allowing for a belt drive without exc
essive slippage.