Verfahren zur Steuerung eines Servomotors

A conventional method for driving a servo-motor performed control by means of a current feedback loop, using a current sensor and an A/D converter. In consequence, the number of parts was great, cost reduction was difficult and it was difficult to avoid control errors caused by errors in the precisi...

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Bibliographische Detailangaben
1. Verfasser:	YASUI, TAKAJI
Format:	Patent
Sprache:	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 DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A conventional method for driving a servo-motor performed control by means of a current feedback loop, using a current sensor and an A/D converter. In consequence, the number of parts was great, cost reduction was difficult and it was difficult to avoid control errors caused by errors in the precision of the current sensor. The present invention comprises a method for driving a servo-motor by detecting a power supply voltage (V) of a servo-motor (4), controlling a voltage command (Vcmd) to a power converter (3) by numeric calculation using a detected value (Vcc) of this power voltage (V) thereby controlling power of a drive current (Iu, Iv, Iw).