Patent ID: 7095205

Claim:
A method of controlling a multiphase switched reluctance machine comprising: measuring the self-inductance of each phase of a plurality of stator phases, the self-inductance of each phase measured at a plurality of points in a phase rotation, the plurality of phases comprising at least one active phase, the self-inductance measured for the at least one active phase comprising a plurality of self-inductances for each active phase; constructing a mathematical model of inductance for each phase based on the measured points, the mathematical model representing dynamic magnetic machine characteristics, the mathematical model relating phase voltage to phase rotation angle through phase self-inductance, the mathematical model comprising phase inductance for the at least one active phase; measuring the phase current of the at least one active phase of the machine while the machine is in operation; determining the phase rotation angle based on the measured phase current and the mathematical model for the at least one measured active phase; and controlling the machine based on the determined phase rotation angle.