Transformerless Bidirectional Inverter for Residential Battery Storage Systems

A bidirectional inverter is proposed based on a two phase Neutral Point Clamping type 2 (NPC2) topology combined with a grounded buck boost inverter. The proposed system can work without the need of a transformer thanks to the combination of the topology, switching pattern and inductive filter that...

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Bibliographic Details
Published in2016 IEEE Green Technologies Conference (GreenTech) pp. 18 - 23
Main Authors Ginart, Antonio, Salazar, Andres, Liou, Richard
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 01.04.2016
Subjects
Batteries
Bidirectional
Conferences
Discharges (electric)
Electronics
Grounds
Inverters
Parasitic capacitance
Phase transformations
Pulse width modulation
split phase power systems
Switching
Topology
Transformerless Bidirectional Inverter
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Summary:A bidirectional inverter is proposed based on a two phase Neutral Point Clamping type 2 (NPC2) topology combined with a grounded buck boost inverter. The proposed system can work without the need of a transformer thanks to the combination of the topology, switching pattern and inductive filter that prevents the discharge of parasitic stray capacitance to ground. The inverter has the ability to operate as a back-up system as well as a grid-tied system. The structure of the NPC2 supports independent loads in each phase, enabling transformerless operation in split phase power systems such as 240V/120V, the default residential system in the US.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
SourceType-Conference Papers & Proceedings-2
ISSN:2166-5478
DOI:10.1109/GreenTech.2016.11