MOTOR DRIVE CONTROL SYSTEM

PROBLEM TO BE SOLVED: To effectively reduce a possibility that excessive current feedback control is worked to cause generation of unintended overshoot in a current value even in the case where current deviation is large at switching from a rectangular wave voltage phase control mode to an overmodul...

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Bibliographische Detailangaben
Hauptverfasser:	KUROMATSU YUTAKA, YAMAKAWA JUNJI, YAMADA KATASHIGE, ASHIDA SHINJIRO, KOYANAGI HIROYUKI
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 effectively reduce a possibility that excessive current feedback control is worked to cause generation of unintended overshoot in a current value even in the case where current deviation is large at switching from a rectangular wave voltage phase control mode to an overmodulation current control mode, in a motor drive control system using a plurality of control modes.SOLUTION: In a motor drive control system for switching a control mode among a plurality of control modes to perform drive control of a motor, at switching from a rectangular wave voltage phase control mode to an overmodulation current control mode, in the case where current deviation between a current command and an actual current value is larger than a predetermined threshold, a regulation of a voltage command based on current feedback is restricted.