The paper deals with real-time identification of the rotor parameters of the induction motor drive. The Model Reference Adaptative Control technique has been used for synthesising two identifiers. An appropriate choice of the reference model allows to build a Lyapunov function by means of which the updating law of the rotor time constant can be found. An higher order identifier is also synthesised using hyperstability approach which allows real-time updating of two rotor parameters. The Persistent Exciting propriety of the input vector assures the parameters convergence. Using a DSP-based system (TMS320C30), having 30MHz clock frequency, a few experiments are conducted for testing the proposed identifiers performance in the case of a CRPWM inverter supplied drive.
Induction Motor Drive Parameter Identification
DAMIANO, ALFONSO;MARONGIU, IGNAZIO;
1996-01-01
Abstract
The paper deals with real-time identification of the rotor parameters of the induction motor drive. The Model Reference Adaptative Control technique has been used for synthesising two identifiers. An appropriate choice of the reference model allows to build a Lyapunov function by means of which the updating law of the rotor time constant can be found. An higher order identifier is also synthesised using hyperstability approach which allows real-time updating of two rotor parameters. The Persistent Exciting propriety of the input vector assures the parameters convergence. Using a DSP-based system (TMS320C30), having 30MHz clock frequency, a few experiments are conducted for testing the proposed identifiers performance in the case of a CRPWM inverter supplied drive.
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