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Active filter for DC-DC power converter

Reference

01135-01

Patents status

French patent application FR0701785 filed on March 13th, 2007 entitled: «Filtrage actif des harmoniques de courant générés par les convertisseurs DC/DC à absorption continue de courant”

Inventors

Bernard DAVAT
Jean-Philippe MARTIN
Serge PIERFEDERICI
Farid MEIBODY-TABAR

 

commercial status

Exclusive or non-exclusive licence

Laboratory

GREEN Groupe de recherches en Electrotechnique et Electronique de Nancy, www.green.u-nancy.fr

Description

TECHNICAL DESCRIPTION

The characteristics of power electronic devices have been improved significantly. The power electronic devices with high-voltage rating, high-current rating, and high switching speed have been developed due to the improvement of semiconductor manufacturing technique. But the electric power equipment may generate a large amount of harmonic current due to their nonlinear characteristic. The harmonic current will pollute the power system, and it results in the problems such as overheat, shorten battery life, degrading voltage quality, electric power components destruction, etc…

Therefore, how to solve the harmonic problem is an important topic in the power system today.

BENEFITS

  • Reduce considerably (nearly to suppress) the high frequency ripples in the power source
  • Suppress the passive filter usually used between the power source and the power converteur
  • Reduce the size of the inductor of the power converter
  • Cost effective solution

INDUSTRIAL APPLICATIONS

This innovation is applicable to all types of DC/DC power converter with continuous input current

Final applications: Forklifts, Electrical Vehicles, Trains and Track Side, Power / DC Distribution, Telecom and Radiocom, Industry…

 


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