SALVADORI, F.; http://lattes.cnpq.br/0735993399553280; SALVADORI, Fabiano.
Resumo:
This work presents a systematic study of several
proposed control strategies to ensure uncoupling
flow and torque, in the static drive systems of
asynchronous machines.
The decoupling between the flow and the conjugate is
the appropriate choice of a set of state variables
representatives of the machine, and a coordinate system of
reference to the actuation model. This approach
use conventional discrete linear controllers to
constant parameters, in the flow control meshes and
conjugated.
The flow-conjugate decoupled control strategies are
classified according to the flow component used for
keep the magnetic excitation constant and the variable used
to control the electromagnetic torque. Magnetic excitation
can be controlled through stator flow, rotor flow
or air gap flow. The conjugate can be controlled by
frequency of slip of the variable chosen to excite
the machine, as well as the quadrature component (usually
current) with the excitation variable.