Simplified Design of PM Machine for Spacecraft Electro-Mechanical Batteries

Abstract

Electromechanical Batteries have important

advantages comparing to chemical batteries and using them is

popularized specially in Low Earth Orbit satellites recently.

External rotor Permanent Magnet machines are used in these

systems as Motor/Generator. Simplified parametric design

method is given for PM machine design in this paper. Finite

element based simulations are used to confirm design presses and

show less than 7% error in parametric design that is acceptable

for simple primary design.