Parameter estimation of PMSM driven by PWM inverter based on discrete dynamic model

Most PMSM parameter estimation techniques assume steady state to avoid model error caused by current derivative but have difficulty in collecting data rich enough to estimate four parameters of PMSM in regular operation. Parameter estimation based on dynamic model has advantages such as simultaneous...

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Bibliographic Details
Published inIECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society pp. 2873 - 2878
Main Authors Kubo, Hajime, Tadano, Yugo
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2016
Subjects
Continuous wavelet transforms
Inverters
Mathematical model
MATLAB
Pulse width modulation
Resistors
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Summary:Most PMSM parameter estimation techniques assume steady state to avoid model error caused by current derivative but have difficulty in collecting data rich enough to estimate four parameters of PMSM in regular operation. Parameter estimation based on dynamic model has advantages such as simultaneous estimation of four parameters, data collection from regular operation and faster estimation. In this research, PMSM parameter estimation based on the discrete dynamic model using data synchronously sampled at the top and bottom of triangular carrier of a PWM inverter is proposed. The influence of model errors on the estimation due to discretization method, dead time and resolution of PWM are investigated in a simulation study. Immunity of the proposed estimation to the dynamic change in current is tested in the experiment.
DOI:10.1109/IECON.2016.7792976