Adaptive position sensing method and apparatus for synchronous motor generator system

An adaptive, sensorless position sensing apparatus ( 250 ) derives rotor position of a synchronous machine ( 200 ). The apparatus ( 250 ) comprises a first rotor position deriving unit ( 300 ) for generating first rotor position values by applying a first sensorless rotor position calculation techni...

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Bibliographische Detailangaben
Hauptverfasser:	DIVITO ROCCO, ANGHEL CRISTIAN E, MORCOV NICOLAE
Format:	Patent
Sprache:	eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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Beschreibung
Zusammenfassung:	An adaptive, sensorless position sensing apparatus ( 250 ) derives rotor position of a synchronous machine ( 200 ). The apparatus ( 250 ) comprises a first rotor position deriving unit ( 300 ) for generating first rotor position values by applying a first sensorless rotor position calculation technique, which emulates a resolver; a second rotor position deriving unit ( 400 ) for generating second rotor position values by applying a second sensorless rotor position calculation technique; and a rotor position result output unit ( 450 ) for outputting rotor position results over a range of rotor speeds as a function of the first rotor position values, the second rotor position values, and rotor speed.