Design of a PFC rectifier with fast start up response and low input current distortion

Abstract

For a PFC rectifier, normally designing of the PI compensator is based on the frequency domain model which is derived  from  the  dynamic  model  of  the  rectifier,  so  it  cannot  guarantee  a  fast  start  up  response.  As  the  high  input  current  quality and fast start up response are conflicting objectives and with improving one of them, another is degraded, for designing a  PI  controller  which  can  provide  both  of  them,  a  Multi-Objective  optimization  approach  can  be  implemented.    In  this  paper,   for   the   first   time,   Strength   Pareto   Evolutionary   Algorithm which is based on Pareto Optimality concept is used to  gain  a  fast  start  up  response  as  well  as  low  input  current  distortion.  In  order  to  validate  the  proposed  PI  controller,  simulation results are presented.