Method of and apparatus for controlling the operation of an...

H - Electricity – 02 – P

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H02P 7/00 (2006.01) G05B 17/02 (2006.01) H02P 5/00 (2006.01)

Patent

CA 2445621

A controller for a motor and a method for controlling the operation of the motor. The controller includes a model of the motor, where the model is utilized to determine modeled values of first and second motor variables. An estimated value of slip is adjusted based at least in part on a comparison of the modeled value of the second motor variable and an estimated value of the second motor variable which is based at least in part on a value of bus voltage and a value of bus current. As the estimated value of slip is adjusted, the modeled values are updated and the voltage utilized to energize the motor is thereby updated to provide control of the motor based on the control of the first motor variable.

Il s'agit d'un bloc de commande pour moteur et de la méthode associée. Ce bloc de commande comprend un modèle du moteur, qui permet de déterminer les valeurs modélisées des première et seconde variables du moteur. La valeur estimée du glissement est ajustée en fonction au moins en partie sur la comparaison de la valeur modélisée de la seconde variable du moteur et sur la valeur estimée de la seconde variable du moteur basée au moins en partie sur une valeur de la tension de bus et d'une valeur du courant de bus. Lorsque la valeur estimée du glissement est ajustée, les valeurs modélisées sont mises à jour. La tension utilisée pour exciter le moteur est donc mise à jour pour commander le moteur en fonction de la commande de la première variable du moteur.

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