초록 ▼

A control for operating an inverter coupled to a switched reluctance machine includes a relative angle estimation circuit for estimating rotor angle for a phase in the switched reluctance machine. The relative angle estimation circuit estimates a phase voltage and thereby calculates phase flux linka

A control for operating an inverter coupled to a switched reluctance machine includes a relative angle estimation circuit for estimating rotor angle for a phase in the switched reluctance machine. The relative angle estimation circuit estimates a phase voltage and thereby calculates phase flux linkage to estimate the rotor angle.

대표청구항 ▼

[ We claim:] [1.] An apparatus for estimating rotor position of a switched reluctance machine having a plurality of phases, each phase being in one of a plurality of logic states and having a phase winding across which a phase voltage is developed and through which a phase current flows, the phase c

[ We claim:] [1.] An apparatus for estimating rotor position of a switched reluctance machine having a plurality of phases, each phase being in one of a plurality of logic states and having a phase winding across which a phase voltage is developed and through which a phase current flows, the phase current flowing through a resistance and the resistance being determined by the logic state of the phases comprising:first means for developing an estimate of phase voltage magnitude in accordance with the resistance associated with the logic state of the phase, the first developing means including a second means for developing a scaled magnitude of the phase current; andmeans responsive to the first and second developing means for developing an estimate of rotor position.