Planning Study of Harmonic Filter for ASDs in Industrial Facilities

Abstract

This paper presents the harmonic study and evaluation when low-voltage adjustable-speed drives (ASDs) are employed in an industrial plant. The procedure of harmonic study is proposed in step-by-step fashion, starting from the analysis of input current characteristics of ASDs. The single-tune filter design with the parameters of the actual network is reviewed and discussed. The evaluation of harmonic distortion for end users, according to IEEE Standard 519, is described. Finally, the harmonic analysis of an industrial plant is demonstrated by the developed computer program.