APPARATUS AND METHOD OF CORRECTING DETECTED CURRENT VALUE OF THREE-PHASE MOTOR

PROBLEM TO BE SOLVED: To provide an apparatus and a method of correcting the detected current value of a three-phase motor, without using special devices by performing a correction for enhancing the relative accuracy of the current detector. SOLUTION: The apparatus of correcting the detected current...

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Bibliographische Detailangaben
1. Verfasser:	YUKIMATSU KIKO
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:	PROBLEM TO BE SOLVED: To provide an apparatus and a method of correcting the detected current value of a three-phase motor, without using special devices by performing a correction for enhancing the relative accuracy of the current detector. SOLUTION: The apparatus of correcting the detected current value of the three-phase motor includes a current detector for detecting the currents of the respective phases of three phases, and a detected current value correcting means for relatively correcting, based on the correlation of the detected value of the current detector, provided to the other two phases at the zero-crossing time of the current of one phase of the three phase at the three-phase motor operating time. COPYRIGHT: (C)2006,JPO&NCIPI