METHOD AND DEVICE FOR CAPTURING WINDING TEMPERATURE

The present invention relates to a device for ascertaining the temperature TW of a winding of an induction machine designed with a stator and a rotor, comprising at least a first Kalman filter (K1) to calculate the temperature and a rotary field control for the vector control of the induction machin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WYSTUP, Prof. Dr. Ralph, KEMMET, Philip
Format:	Patent
Sprache:	eng ; fre ; ger
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
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Beschreibung
Zusammenfassung:	The present invention relates to a device for ascertaining the temperature TW of a winding of an induction machine designed with a stator and a rotor, comprising at least a first Kalman filter (K1) to calculate the temperature and a rotary field control for the vector control of the induction machine with at least one id-current controller, which is designed to impose a high-frequency voltage signal (HF) on the winding voltage in order to obtain from this a winding current with a superimposed high-frequency current component for the winding, which is taken to the Kalman filter (K1), the Kalman filter (K1) having a high-frequency model of the motor in order to determine from this the high-frequency resistance of the winding and in turn the winding temperature TW by means of a calculation function.