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Tutorial 2: Precise Parameter Identification of Dynamic Systems Verified by Simulation Experiments

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1 Author(s)
Alexik, M. ; Dept. of Tech. Cybern., Univ. of Zilina, Zilina, Slovakia

This paper discusses about the precise parameter identification. To identify the parameters from the transient response, on proportional second order process when in the numerator is the only gain, and the characteristic equation have two different time constants, the Strejc's method, which is generally known, is used most commonly. After identification by this method obtained parameters are satisfactory, but not precise. But exact parameters are needed for the verification of digital control algorithms, especially for its real-time verification. Commonly we used such kind of synthesis method, which the control loop response should be on the aperiodic border (this is the "best" quality of control loop response). If the actual response will be with overshooting or it's too damping, we need to determine which errors causes this If we know that the identification is correct, then the errors can be easier found.

Published in:

Computer Modelling and Simulation (UKSim), 2011 UkSim 13th International Conference on

Date of Conference:

March 30 2011-April 1 2011