METHOD, COMPUTER PROGRAM, AND CONTROLLER FOR CONTROLLING AN ELECTRICAL CONVERTER, ELECTRICAL CONVERTER, AND COMPUTER-READABLE MEDIUM
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Jan 23, 2023
filing date -
Jan 23, 2023
priority date (Note) -
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Abstract
A method for controlling an electrical converter for driving an electrical machine comprises the steps of: estimating a stator flux vector depending on at least one measurement in the electrical converter; receiving a rotor speed of the electrical machine; determining an optimized pulse pattern for the electrical converter depending on the rotor speed; determining a rotor angle of a rotor flux vector depending on the rotor speed; determining a reference stator angle of the stator flux vector depending on the rotor angle; determining a reference stator flux vector depending on the optimized pulse pattern and the reference stator angle; determining a difference between the reference stator flux vector and the estimated stator flux vector; modifying switching instants of the optimized pulse pattern, such that the difference is minimized; and applying at least a part of the modified optimized pulse pattern to the electrical converter.
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