MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide a motor controller capable of executing weak magnetic flux control, while preventing damages to a drive circuit, or the like, in a high rotation region with respect to a brushless motor. SOLUTION: A command current setting section 25 is provided with a target value c...

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Hauptverfasser:	UEDA TAKESHI, NAGASE SHIGEKI, NIIGUCHI NOBORU, KARIZUME YUJI, SUMASU HIROSHI
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 LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING
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creator	UEDA TAKESHI NAGASE SHIGEKI NIIGUCHI NOBORU KARIZUME YUJI SUMASU HIROSHI
description	PROBLEM TO BE SOLVED: To provide a motor controller capable of executing weak magnetic flux control, while preventing damages to a drive circuit, or the like, in a high rotation region with respect to a brushless motor. SOLUTION: A command current setting section 25 is provided with a target value correcting section 26 for obtaining d-axis and q-axis current command values idc, iqcto be given to an open loop control section 31, based on d-axis and q-axis current target values id, iq. If the d-axis and q-axis target values vd, vq, which are calculated based on a circuit equation of the motor from the d-axis and q-axis current target values id, iq, exceed a voltage limit, the target value correcting section 26 corrects the d-axis and q-axis current target values id, iqso that the d-axis and q-axis voltages vd, vqand d-axis and q-axis currents id, iqsatisfy √(vd2+vq2)≤Vlim and √(id2+iq2)≤Ilim. According to this correction, d-axis and q-axis current command values idc, iqccan be obtained. COPYRIGHT: (C)2010,JPO&INPIT
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subjects	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 LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TRAILERS TRANSPORTING
title	MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
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