PROJECT TITLE :

Harmonic Interaction Analysis in Grid-connected Converter using Harmonic State Space (HSS) Modeling - 2017

ABSTRACT:

An increasing variety of power electronics based Distributed Generation (DG) systems and loads generate coupled harmonic plus non-characteristic harmonic with every different. Several strategies like impedance based mostly analysis, that comes from typical tiny signal- and average-model, are introduced to investigate these issues. But, it is found that Linear Time Invariant (LTI) base model analysis makes it troublesome to research these phenomenon as a result of of your time varying system operation trajectories, varying output impedance seen by grid connected systems and neglected switching element throughout the modeling process. This paper investigates grid connected converter by means that of Harmonic State Area (HSS) small signal model, that is modeled from Linear Time varying Periodically (LTP) system. Further, a grid connected converter harmonic matrix is investigated to analyze the harmonic behavior interaction and dynamic transfer procedure. Frequency domain along with time domain simulation results are represented by means of HSS modeling to verify the theoretical analysis. Experimental results are also included to validate the strategy.