NDLI: Design of a single stage transformerless VSI in a smart microgrid for PV-STATCOM/ESS operations

Content Provider	IEEE Xplore Digital Library
Author	Rafi, F.H.M. Hossain, M.J. Lu, J.
Copyright Year	2014
Description	Author affiliation: Queensland Micro & Nanotechnol. Center, Griffith Univ., Gold Coast, QLD, Australia (Rafi, F.H.M.; Hossain, M.J.; Lu, J.)
Abstract	In recent years, the microgrid has emerged as a promising concept and gained significant attention along with different renewable energy sources in the distribution network. Proper power coordination and strategic controller selection can extend the horizon of applications of the traditional microgrid system. This paper demonstrates the multi-operations from a single stage transformerless voltage source inverter (VSI) in the ac-dc microgrid. The designed VSI coordinates active power from the Photovoltaic (PV) system, acts as a rectifier for the dc loads, performs VAR compensation as a static synchronous compensator (STATCOM) and reduces voltage and power oscillation as STATCOM/ESS (energy storage system) operation under divergent operating conditions, such as, sudden radiation changing, random load changing, different faults effects etc. The developed microgrid model represents the commercial smart microgrid built at Griffith University, Nathan campus, which consists of PV, battery energy storage system (BESS) and single stage transformer-less STATCOM. Performance analysis of the smart microgrid model is carried out in power system computer aided design (PSCAD) /electromagnetic transient dc (EMTDC) software environment. The results prove that the designed VSI can coordinate individual power profiles distinctively maintaining system stability and the excess PV generated power contributes similarly as an ESS for STATCOM/ESS operations in the microgrid.
Starting Page	1
Ending Page	6
File Size	3566213
Page Count	6
File Format	PDF
ISBN	9780646923758
DOI	10.1109/AUPEC.2014.6966557
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-28
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	ACPE
Subject Keyword	single stage transformer-less VSI PV STATCOM/ESS Microgrids Educational institutions Inverters Smart microgrid Oscillators Reactive power PSCAD/EMTDC Automatic voltage control STATCOM Load modeling
Content Type	Text
Resource Type	Article

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