A robust decentralized controller design for inverter-based Microgrids with dynamic loads

Author

Truong Duc Trung

Author_Institution

Control Syst. Group, Tech. Univ. Berlin, Berlin, Germany

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

1507

Lastpage

1512

Abstract

We present a model of an inverter-based Microgrid with dynamic loads. The influence of the dynamic loads on the system stability in terms of frequency and voltage is deduced from their frequency domain responses. Then, based on the linear matrix inequality (LMI) technique and the small-gain theorem, a robust decentralized control approach is introduced to guarantee stability of the whole Microgrid in the presence of load influences during operation and zero steady-state frequency deviation. The control approach contributes the peer-to-peer and plug-and-play architecture of Microgrids as well as promotes the possibility of power sharing between the generation units of the system.

Keywords

decentralised control; distributed power generation; frequency-domain analysis; invertors; linear matrix inequalities; power generation control; power system stability; robust control; LMI technique; dynamic load; frequency domain response; generation unit; inverter based microgrid model; linear matrix inequality technique; peer to peer architecture; plug and play architecture; robust decentralized controller design; small gain theorem; steady state frequency deviation; Aggregates; Induction machines; Inverters; Load modeling; Microgrids; Power system stability; Stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699356

Filename

6699356