Comprehensive modelling and small signal stability analysis of RES-based microgrid

Krismanto, Awan, Mithulananthan, N. and Lee, K. Y. (2015). Comprehensive modelling and small signal stability analysis of RES-based microgrid. In: Sukumar Mishra, 9th IFAC Symposium on Control of Power and Energy Systems CPES 2015. 9th IFAC Symposium on Control of Power and Energy Systems CPES 2015, New Dehli, India, (282-287). 9-11 December 2015. doi:10.1016/j.ifacol.2015.12.391


Author Krismanto, Awan
Mithulananthan, N.
Lee, K. Y.
Title of paper Comprehensive modelling and small signal stability analysis of RES-based microgrid
Conference name 9th IFAC Symposium on Control of Power and Energy Systems CPES 2015
Conference location New Dehli, India
Conference dates 9-11 December 2015
Proceedings title 9th IFAC Symposium on Control of Power and Energy Systems CPES 2015
Journal name IFAC-PapersOnLine
Publisher Elsevier
Publication Year 2015
Year available 2015
Sub-type Fully published paper
DOI 10.1016/j.ifacol.2015.12.391
Open Access Status Not Open Access
ISBN 2405-8963
ISSN 2405-8963
Editor Sukumar Mishra
Volume 48
Issue 30
Start page 282
End page 287
Total pages 6
Collection year 2016
Language eng
Abstract/Summary Implementation of power electronic devices has introduced novel challenges in microgrid (MG) operation and control; and hence the condition of power electronic devices should be monitored for stable operation of the entire grid. This paper presents detailed small signal model of the MG based upon Renewable Energy Resources (RESs), focusing on the dynamic behavior of power electronic devices and associated controllers. Variations on inverter modulation indices and boost converter duty cycles were applied to observe small signal stability performance of the MG. Eigenvalues and participation factor analysis were presented to identify weak modes and stability margin. Analysis of eigenvalue loci shows motion of low frequency loci toward the right-half complex plane as the parameters of power electronic devices varied. More severe oscillatory behavior was experienced when fluctuation occurred at the grid-side inverter, which indicates fast degradation of damping and stability margin. The presented work contributes to help utilities in designing a stable MG for seamless integration of renewable energy into power systems.
Keyword Microgrid
Small signal stability
Inverter
Duty cycle
Modulation index
Renewable energy sources
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
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Created: Sat, 27 Feb 2016, 21:58:38 EST by Dr Mithulan Nadarajah on behalf of School of Information Technol and Elec Engineering