A Cost-Effective DC Link Multi-Winding Series Connected 40-Pulse Rectifier System

Abstract

Power quality is a key feature of rectifier systems. This paper describes the power quality performance for multiple DC loads of the series-connected 40-pulse rectifier (PR) system. The main technique to obtain a better harmonic reduction impact on the DC network is the perfect layout of a Harmonic Injection Transformer (HIT). The first step is to calculate the turn ratio of the purposed transformation method. During the second step, the accuracy of the general method is validated on a 5 -Φ rectifier-based multi-pulse rectifier (MPR). For validation, the harmonic reduction technique is implemented after the operation of the harmonic reduction circuit (HRC) on the DC side. In this article, the major target is to develop a harmonic injection transformer to keep the input voltage total harmonic distortion at a minimum level. As a result, we obtained a cost-effective and reduced volume of the proposed system as compared to the previous techniques in terms of reliability, realization, harmonic reduction capability, and minimization of voltage ripple coefficient. The MATLAB/SIMULINK model elaborates on the effectiveness of the proposed work.