초록

An estimator initialization circuit for a sensorless switched reluctance machine system pulses phase windings of the machine a certain number of times and derives initial values for an estimator of the system.

대표청구항 ▼

Apparatus for developing an initial estimate of a condition of a machine having a plurality of phase windings each coupled to a power converter, wherein a first circuit is coupled to the phase windings for developing a plurality of phase relative angle estimates and a second circuit is coupled to th

Apparatus for developing an initial estimate of a condition of a machine having a plurality of phase windings each coupled to a power converter, wherein a first circuit is coupled to the phase windings for developing a plurality of phase relative angle estimates and a second circuit is coupled to the first circuit and combines the plurality of phase relative angle estimates into a single estimate, comprising: means for pulsing the phase windings during an initialization period such that the second circuit develops a sequence of phase relative angle estimates; and means coupled to the second circuit for deriving the initial estimate of the machine condition from the sequence of phase relative angle estimates.