MOTOR CONTROL DEVICE AND METHOD FOR INDUCTION MOTOR SPEED ESTIMATION USING A SOFT STARTER SYSTEM

A system and method for estimating operating characteristics of an induction motor is disclosed. The system includes a motor control device that is electrically connectable between a motor and a power source. The motor control device includes a plurality of switching devices comprising at least one...

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Hauptverfasser:	WOODLEY, Kaijam M, BHAVARAJU, Vijay, DIMINO, Steven Andrew, WU, Dongxiao, LEQUESNE, Bruno Patrice-Bernard, HUA, Yahan
Format:	Patent
Sprache:	eng ; fre ; 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 ELECTRICITY GENERATION
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creator	WOODLEY, Kaijam M BHAVARAJU, Vijay DIMINO, Steven Andrew WU, Dongxiao LEQUESNE, Bruno Patrice-Bernard HUA, Yahan
description	A system and method for estimating operating characteristics of an induction motor is disclosed. The system includes a motor control device that is electrically connectable between a motor and a power source. The motor control device includes a plurality of switching devices comprising at least one thyristor corresponding to a respective phase of the motor. The motor control device also includes a controller programmed to disconnect the power source from the motor for a predetermined time period following a first plurality of cycles of a mains phase voltage of the power source. The controller is further programmed to measure a back-emf voltage during the predetermined time period, estimate an operating characteristic of the motor from the measured back-emf voltage, and trigger the plurality of switching devices to reconnect the power source to the motor following estimation of the operating characteristic.
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language	eng ; fre ; ger
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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
title	MOTOR CONTROL DEVICE AND METHOD FOR INDUCTION MOTOR SPEED ESTIMATION USING A SOFT STARTER SYSTEM
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