Low-speed winding resistance estimation of variable speed motor systems

A motor system can include a motor configured to be operated according to at least a portion of an operation cycle specifying at least one target speed for the motor and a controller configured to obtain an estimated winding resistance of the motor, wherein the estimated winding resistance is determ...

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Bibliographic Details
Main Authors Latham, Joseph Wilson, Kollipara, Meher Prasadu
Format Patent
LanguageEnglish
Published 19.12.2023
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
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
GENERATION
LAUNDERING
LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILEARTICLES
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Summary:A motor system can include a motor configured to be operated according to at least a portion of an operation cycle specifying at least one target speed for the motor and a controller configured to obtain an estimated winding resistance of the motor, wherein the estimated winding resistance is determined based at least in part on an estimator gain factor, and wherein the estimator gain factor is inversely dependent on a speed of the motor; wherein the at least one target speed comprises at least one low speed such that at least a portion of the operation cycle is a low speed portion of the operation cycle, the at least one low speed having a speed of less than about 10 percent of a maximum speed of the operation cycle.
Bibliography:Application Number: US202117324477