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Enhancing the Stability of an Autonomous Microgrid using DSTATCOM

Majumder, Ritwik, Ghosh, Arindam, Ledwich, Gerard, & Zare, Firuz (2009) Enhancing the Stability of an Autonomous Microgrid using DSTATCOM. International Journal of Emerging Electric Power Systems, 10(5).

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Abstract

This paper proposes a method enhancing stability of an autonomous microgrid with distribution static compensator (DSTATCOM) and power sharing with multiple distributed generators (DG). It is assumed that all the DGs are connected through voltage source converter (VSC) and all connected loads are passive, making the microgrid totally inertia less. The VSCs are controlled by either state feedback or current feedback mode to achieve desired voltage-current or power outputs respectively. A modified angle droop is used for DG voltage reference generation. Power sharing ratio of the proposed droop control is established through derivation and verified by simulation results. A DSTATCOM is connected in the microgrid to provide ride through capability during power imbalance in the microgrid, thereby enhancing the system stability. This is established through extensive simulation studies using PSCAD.

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ID Code: 31214
Item Type: Journal Article
Keywords: microgrid, active and reactive power sharing, DSTATCOM
DOI: 10.2202/1553-779X.2225
ISSN: 1553-779X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Renewable Power and Energy Systems Engineering (excl. Solar Cells) (090608)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 Berkeley Electronic Press
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher
Deposited On: 09 Mar 2010 08:11
Last Modified: 01 Mar 2012 00:34

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