Control of a power part of a variable speed drive based on predetermined levels of flux
AssigneeSchneider Toshiba Inverter Europe SAS
InventorsFrançois MALRAIT, Thomas DEVOS
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Abstract
A method for controlling a variable speed drive arranged for powering an electric motor, the variable speed drive comprising a power part and a control part. The method comprises a preliminary phase of storing a set of predetermined levels of flux of the electric motor. Then, during a current phase, the method comprises selecting a level of flux from among the set of predetermined levels of flux and controlling the power part of the variable speed drive based on the selected level of flux as reference value.
Claims9
A method for controlling a variable speed drive arranged for powering an electric motor the variable speed drive comprising a power part and a control part, the method comprising:
- a preliminary phase comprising storing a set of predetermined levels of flux of the electric motor;
- a current phase comprising:
- selecting a level of flux from among the set of predetermined levels of flux;
- controlling the power part of the variable speed drive based on the selected level of flux as reference value.
A variable speed drive in charge of powering an electric motor, the variable speed drive comprising a power part and a control part, wherein the control part comprises:
- a memory storing a set of predetermined levels of flux of the electric motor;
- a processor configured for performing the following operations, during a current phase:
- selecting a level of flux from among the set of predetermined levels of flux;
- controlling the power part of the variable speed drive based on the selected level of flux as reference value.
Dependencies are inferred from the claim text.