ALSINA, P. J.; http://lattes.cnpq.br/3653597363789712; ALSINA, Pablo Javier.
Abstract:
The aim of this dissertation is to investigate the discrete control of the induction motor for real-time applications. Discrete induction motor models are developed
powered by a voltage inverter in which the stator voltages
are replaced by arm width pulse widths of
inverter. Aspects of discretization error and
sampling frequency are examined in detail. THE
numerical stability of the models is investigated through the
of discrete root locations in order to establish the
validity theorists.
Using the discrete model, a
control by finite settling time - a sample of
front for the stator chains is developed. THE
current controller is examined in the Z plane and the
sensitivity to parametric variations is verified. An observer
of reduced order rotor flux using only samples of
current and velocity is projected in the discrete domain. The poles of the
observer are positioned in order to obtain an observer
robust for variations in rotor resistance.
The direct drive field control of the
induction is simulated to check the validity of the
proposed. The complete simulation includes the current controller
with deadbeat response, flow observer and controllers
deadbeat of flow and speed. The simulation results are
satisfactory. Aspects of real-time implementation of the
algorithm are examined.
