3 kW High Performance Permanent Magnet Alternator

The objective of this proposed SBIR Phase I effort is to design, analyze, and demonstrate a high performance 3kW alternator that has no rare earth content and simultaneously is smaller, lighter, quieter and more efficient than alternators based on induction machines currently in the Armys inventory. QM Powers Parallel Path Magnetic Technology (PPMT) is a breakthrough magnetic circuit design that can be applied to a wide variety of electromechanical devices, including alternators. Compared to conventional alternators, PPMT alternators have higher power density, can operate at higher ambient temperatures without active cooling, operate at high speeds, are highly reliable, can be motored, can be rapidly switched off, and operate more efficiently over a wider power range. Moreover, PPMT requires less magnetic material than conventional permanent magnet designs and can achieve higher performance with a wide range of magnetic materials including those with no rare earth content.