INVESTIGADORES
FANTINO Roberto Armin
artículos
Título:
Current controller for a bidirectional boost input stage equipped with an LCL (inductance-capacitance-inductance) filter
Autor/es:
FANTINO ROBERTO; BUSADA CLAUDIO; SOLSONA JORGE
Revista:
ENERGY
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 84 p. 91 - 97
ISSN:
0360-5442
Resumen:
A control strategy for a low resonance frequency LCL (inductance?capacitance?inductance) filter used in the input stage of dc?dc bidirectional boost converters is proposed. When compared with the classical L filter, an LCL filter allows to obtain a cheaper topology. However, with an LCL topology, damping is needed for guaranteeing the system stability. In this paper an active damping strategy is designed. The needed damping is achieved via a dynamic controller. The controller consists of a simple PI (proportional-integral) controller plus a linear filter added in series with the PI integrator term. The modified PI controller achieves the active damping of the LCL filter and allows to arbitrarily place the system closed-loop poles. The proposed strategy only requires measurement of the variable to be controlled, the source current. Simulation and experimental results validate the proposed controller and show its effectiveness.
