Title :
A high-efficiency, high power generation system for automobiles
Author :
Naidu, Malakondaiah ; Boules, Nady ; Henry, Rassem
Author_Institution :
Electr. & Electron. Dept., Gen. Motors Tech. Center, Warren, MI, USA
Abstract :
The paper presents a new scheme for the efficient generation of electric power, demanded for future automobiles. The new system, consists of a permanent magnet (PM) alternator having high energy MAGNEQUENCH (MQ) magnets, a split winding and a novel electronic voltage regulation 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 with encouraging results. This high output is provided at 15-20 percentage points higher efficiencies than conventional automotive alternators, 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 equivalent production alternator, thus allowing for a belt drive without excessive slippage
Keywords :
alternators; automotive electronics; design engineering; machine testing; permanent magnet generators; permanent magnets; rotors; 100 A; 14 V; 250 A; PM generator; automobiles; belt drive; efficiency; electric power generation; electronic voltage regulation; fuel economy savings; high energy MAGNEQUENCH magnets; permanent magnet alternator; rotor inertia; split winding; Alternators; Automobiles; Automotive engineering; Fuel economy; Laboratories; Permanent magnets; Power generation; Power generation economics; System testing; Voltage control;
Conference_Titel :
Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3008-0
DOI :
10.1109/IAS.1995.530369
