| 摘要 |
A method and system for estimating an angular position and an angular velocity of a rotor in a dynamoelectric machine (12) measures an AC current (28) and a potential (26) for each of a plurality of windings coupled to a stator of the dynamoelectric machine, transforms the measured currents and potentials to a stationary frame (±-²) to produce transformed currents and transformed potentials, and processes the transformed currents and transformed potentials to produce a first intermediate signal and a second intermediate signal. The first intermediate signal and the second intermediate signal are cross-coupled and processed (Fig. 3) to obtain a first extended rotor flux value and a second extended rotor flux value. The first extended rotor flux value arid the second extended rotor flux value are applied to a phase lock loop (Fig. 4) to derive an estimated rotor angular position and an estimated rotor angular velocity for the dynamoelectric machine. |
