Patent Number: 6,396,186

Title: Electromechanical battery design suitable for back-up power applications

Abstract: The windings that couple energy into and out of the rotor of anelectro-mechanical battery are modified. The normal stator windings of thegenerator/motor have been replaced by two orthogonal sets of windings.Because of their orthogonality, they are decoupled from each otherelectrically, though each can receive (or deliver) power flows from therotating field produced by the array of permanent magnets. Due to theorthogonal design of the stator windings and the high mechanical inertiaof the flywheel rotor, the resulting power delivered to the computersystem is completely insensitive to any and all electrical transients andvariabilities of the power from the main power source. This insensitivityincludes complete failure for a period determined only by the amount ofstored kinetic energy in the E-M battery modules that are supplied.Furthermore there is no need whatsoever for fast-acting, fractional-cycleswitches, such as are employed in conventional systems, and which arecomplicated to implement.

Inventors: Post; Richard F. (Walnut Creek, CA)


International Classification: H02K 7/02 (20060101); H02K 7/00 (20060101); H02K 3/28 (20060101); H02K 21/22 (20060101); H02K 003/04 (); H02K 001/06 ()

Expiration Date: 05/28/2014