Optimization of passive filter components through active filtering of current ripple reduction in an inverter

Jeyaraman Ramakrishnan, Chengalvarayan Natarajan Ravi

Abstract


This paper employs the active input current filtering concept developed and explained to optimize the conventional passive filter components in a two-stage telecommunication inverter. A prototype inverter has been designed for a rated power of 800 W. Optimization of the passive filter components consisting of inductance LTank and capacitance CTank was performed through simulations. The simulation model used for this optimization was validated using the developed prototype. The focus of this work is to limit the input DC current ripple within the limits specified in ETSI 300132-2 for a battery supplied telecommunication inverter and optimize the passive filter components. Using the active filtering technique, limit the input current ripple and simultaneously reduce the filter capacity in DC-link. This advantage of active filtering technology over the conventional passive (LC) filter concept is explored and demonstrated in this paper

Keywords


direct current-direct current converter; passive filter; push-pull converter; ripple reduction; second-order ripple; two-stage inverter



DOI: http://doi.org/10.11591/ijpeds.v13.i1.pp%25p

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