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Averaged model of a buck DC–DC converter for single-loop description of current-mode control

Janke Włodzimierz, Bączek Maciej, Kraśniewski Jarosław

Archives of Electrical Engineering

2019

Vol. 68, nr 4

891--905

: Averaged models: an AC large signal, DC and AC small signals of a currentcontrolled buck converter are described. Only peak current mode control of a converter working in the continuous conduction mode (CCM) is considered. The model derivation differs from the typical approaches presented in the literature and doesn’t refer to the multiloop concept of a current controlled converter. The separation of the variables method is used in the model derivation. The resulting models are presented in the form of an equation set and equivalent circuits. The calculations based on the presented models are verified by measurements and full-wave PSpice simulations.

A polar coordinate based sliding mode design for vibration control

Young K. D.

Applied Mathematics and Computer Science

1998

Vol. 8, no 1

39-50

A polar coordinate based sliding mode control design approach for solving vibration control problems is proposed. The phase plane in subdivided into multiple sets, and a different sliding manifold can be chosen for each of the sets. This flexibility in the design allows a different variable structure control law to be applied depending on the phase angle of the vibration. Transient performance improvements over conventional VSC with sliding hyperplanes are demonstrated.