Power-Response Matrix-Based Modeling of Converter Systems for Small-Signal Analysis
Paper in proceeding, 2024

In this paper, a novel small-signal modeling approach for grid-connected converter systems is presented. The approach is based on the converter system’s power-response matrix, which correlates variations in grid voltage magnitude and frequency with variations in the exchanged active and reactive powers from the converter system. This formulation is useful not only for small-signal stability analysis of interconnected systems but also for directly assessing the grid services offered by converter systems, such as their contributions to total system inertia and damping. The paper provides a detailed analytical derivation of the converter system’s power-response matrix, along with an analysis of the small-signal stability of the interconnected system. Furthermore, a comparison between the proposed power-response matrix-based model and the more conventional impedance-based model is presented, establishing the equivalence between the two modeling approaches and highlighting the advantages of the proposed approach.

grid-forming converter

small-signal stability

voltage variation

frequency variation

impedance model

Author

Anant Narula

Chalmers, Electrical Engineering, Electric Power Engineering

Paul Imgart

Chalmers, Electrical Engineering, Electric Power Engineering

Massimo Bongiorno

Chalmers, Electrical Engineering, Electric Power Engineering

Paolo Mattavelli

University of Padua

Mebtu Bihonegn Beza

Chalmers, Electrical Engineering, Electric Power Engineering

Jan R Svensson

Hitachi Energy Research

Chalmers, Electrical Engineering, Electric Power Engineering

2024 IEEE Energy Conversion Congress and Exposition (ECCE)

IEEE Energy Conversion Congress & Expo
Phoenix, USA,

Areas of Advance

Energy

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

More information

Latest update

10/14/2024