Sequence Impedance Modeling of the Matching Control and Comparison with Virtual Synchronous Generator

authored by

Frederik Stallmann, Axel Mertens

Abstract

In this paper, sequence impedance modeling is carried out for a grid-forming control based on matching inverter and synchronous generator dynamics. The outer grid-forming control provides a voltage reference for the inner cascaded voltage and current control, which are defined in stationary reference frame. The impedance model is analytically derived by applying linearization, validated by time-domain simulations in MATLAB/Simulink and is subsequently compared to a more common type of grid-forming control. The paper shows that both control concepts, although apparently being different, show equal small signal dynamics. Moreover, the small signal impedance of the matching control is experimentally validated, using a power-hardware-in-the-loop laboratory setup.

Organisation(s)

Institute of Drive Systems and Power Electronics

Type

Conference contribution

Pages

421-428

No. of pages

8

Publication date

2020

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Energy Engineering and Power Technology, Renewable Energy, Sustainability and the Environment, Electrical and Electronic Engineering, Control and Optimization

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.1109/PEDG48541.2020.9244435 (Access: Closed)