Method and apparatus for generating signals representing motor flux in an AC motor

Flux signals suitable for use in a control of an ac motor are generated as a function of the voltages and currents furnished to the motor. From sensed values of motor phase voltages and currents, signals representing the direct and quadrature values of motor voltage and current as well as total moto...

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Bibliographic Details
Main Authors D'ATRE; JOHN D, CHAUSSE; B. PAUL
Format Patent
LanguageEnglish
Published 14.02.1984
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
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Summary:Flux signals suitable for use in a control of an ac motor are generated as a function of the voltages and currents furnished to the motor. From sensed values of motor phase voltages and currents, signals representing the direct and quadrature values of motor voltage and current as well as total motor current are developed. Employing a closed loop path, these signals are utilized to develop signals representing the direct and quadrature components of the value of motor flux. The closed path develops a resistance signal representing the instantaneous motor resistance as a function of the total motor current and flux which resistance signal is employed in the development of the various flux signals.
Bibliography:Application Number: US19810335344