Investigation of small signal dynamics of inverter-based Distributed Generation in grid-connected and autonomous modes of operation

Sharifzadeh, Mostafa; Jalilian, A.

doi:10.1109/PEDSTC.2011.5742423

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Authors

Sharifzadeh, Mostafa

Jalilian, A.

Date

2011

Type

Conference Paper

Metadata

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Citation

Sharifzadeh, M. and Jalilian, A. 2011. Investigation of small signal dynamics of inverter-based Distributed Generation in grid-connected and autonomous modes of operation, in Proceedings of the 2nd Power Electronics, Drive Systems and Technologies Conference (PEDSTC), pp. 229-234. Tehran: IEEE.

Source Title

2011 2nd Power Electronics, Drive Systems and Technologies Conference, PEDSTC 2011

DOI

10.1109/PEDSTC.2011.5742423

ISBN

9781612844213

School

Dept of Mining Eng & Metallurgical Eng

URI

http://hdl.handle.net/20.500.11937/30595

Collection

Curtin Research Publications

Abstract

A Distributed Generation (DG) unit can be operated either in grid-connected mode or in autonomous mode and has to possess the essential dynamic stability in both cases. This paper presents a systematic approach to small-signal modeling of an inverter based DG unit in grid-connected, autonomous and transient from grid-connected to autonomous modes of operation. A first order eigenvalue sensitivity analysis is done to investigate the effect of changing different parameters on eigenvalues and system dynamics both in the low and high frequency ranges. Simulation results show an acceptable agreement with the loci of eigenvalues.