Power Conversion Device

The present invention achieves highly accurate control characteristics by estimating an induced voltage coefficient of a magnet motor without rotary auto-tuning.A first power Pc is calculated on the basis of the output voltage and output current of the magnet motor, and a second power Pc{circumflex...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WATANABE, Hiroshi, TOBARI, Kazuaki, SUGIMOTO, Takuya, ONUMA, Yusaku, TOKASHIKI, Mutsuo
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:	The present invention achieves highly accurate control characteristics by estimating an induced voltage coefficient of a magnet motor without rotary auto-tuning.A first power Pc is calculated on the basis of the output voltage and output current of the magnet motor, and a second power Pc{circumflex over ( )} is calculated on the basis of the electric circuit constant, current command, output frequency, and induced voltage coefficient of the magnet motor. The induced voltage coefficient is estimated so that the calculated first power follows the second power, and the driving of the magnet motor is controlled in accordance with the induced voltage coefficient.