Impact of Control Loops on the Passivity Properties of Grid-Forming Converters with Fault-Ride through Capability
Journal article, 2021

Due to the increasing integration of renewable energy sources (RES) and a corresponding reduction of conventional generating units, there is nowadays a demand from the power-electronic converters to provide grid-forming properties through proper control of the converter systems. This paper aims to evaluate the impact of various control loops in a grid-forming control strategy equipped with a fault-ride through capability on the passivity properties of the converter system. Through the analysis of the frequency-dependent input admittance of the converter, the main factors affecting the passivity properties are identified. A simplified analytical model is derived in order to propose possible control modifications to enhance the system’s passivity at various frequencies of interest and the findings are validated through detailed time-domain simulations and experimental tests.

grid-forming converter

control interaction

input admittance

modeling

frequency analysis

passivity

stability analysis

Author

Mebtu Bihonegn Beza

Chalmers, Electrical Engineering, Electric Power Engineering, Power grids and Components

Massimo Bongiorno

Chalmers, Electrical Engineering, Electric Power Engineering, Power grids and Components

Anant Narula

Chalmers, Electrical Engineering, Electric Power Engineering, Power grids and Components

Energies

1996-1073 (ISSN)

Vol. 14 19 6036

Driving Forces

Sustainable development

Areas of Advance

Energy

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

Control Engineering

DOI

10.3390/en14196036

More information

Latest update

10/6/2021