CONTROL SYSTEM FOR A POWER CONVERTER FOR DRIVING INDUCTION MOTORS

In a control system (CS) for a power converter (PC) for driving induction motors (4), the control system separately controlling an exciting current component of the primary current of the induction motors contributing to generation of a magnetic flux and a torque current component of the primary cur...

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Bibliographische Detailangaben
Hauptverfasser:	MIYAZAKI, MASANORI, OGASHI, YOSHIHIRO
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
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Beschreibung
Zusammenfassung:	In a control system (CS) for a power converter (PC) for driving induction motors (4), the control system separately controlling an exciting current component of the primary current of the induction motors contributing to generation of a magnetic flux and a torque current component of the primary current contributing to generation of a torque, a voltage detecting device (19) detects the output voltage (V) of the power converter, and a correcting device (21) responds to the voltage detecting device for determining a current correction (Ai) for correcting at least one of the exciting current component and the torque current component to reduce the difference of the detected voltage (V) from a reference value (Vo) of the output voltage.