A four-wire, current-controlled converter provides harmonic neutralization in three-phase, four-wire systems

Abstract

A four-wire active filter has been implemented. It neutralizes current harmonic effects, caused by any configuration of nonlinear loads in three-phase, four-wire systems. The results of a laboratory implementation are presented. These results are compared with those from computer simulations. Key design issues are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>