Method for estimating parameters of an electric motor and a power filter
OwnerAna-Mari Tataru Kjær, Lucian Asiminoaeiinventors
Life of this patent
Estimating the term…
Abstract
A method for estimating electrical parameters of an electric motor (205) and a power filter (203) connected to a power converter (201) including injecting an AC signal of different frequencies for a given time window in the power filter (203) and the motor (205), measuring a response signal of the power filter (203) and the motor (205) to the injected AC signal, determining a resonance frequency of the power filter (203) based on the measured response signal, calculating a ratio of leakage inductances of the power filter (203) and the motor (205).
Claims15
A method for estimating electrical parameters of an electric motor and a power filter connected to a power converter,
- the method comprising:
- injecting an AC signal of different frequencies for a given time window in the power filter and the motor,
- measuring a response signal of the power filter and the motor to the injected AC signal,
- determining a resonance frequency of the power filter based on the measured response signal,
- calculating a ratio of leakage inductances of the power filter and the motor.
Dependencies are inferred from the claim text.