FERNANDES, D. A.; http://lattes.cnpq.br/4875481653656310; FERNANDES, Darlan Alexandria.
Résumé:
In this work digital simulations are performed to analyse the steady-state
response of power converters. Transient techniques as well as methods for accelerating
the convergence to the steady state are used. In order to accomplish the latter task, two
approaches are investigated. In the first one, harmonic admittance matrices from the
power electronic circuits are used to obtain the steady state responses. This technique is
based on the balance harmonic method. The second one is also employed for simulating
directly the steady state and it is considered a novel technique, based on the definition of
a differentiation matrix. It is simple to apply and is rapidly-convergent. The responses
of several circuits, some of them with feedback control and soft-switching, are
presented. They are compared with the responses obtained with the technique used in
the Electromagnetic Transients Programs (EMTP).
