Title

An Integrated Three-Port Inverter For Stand-Alone Pv Applications

Keywords

DC-AC power conversion; Multi-port converters; Three-port converters

Abstract

This paper presents a novel concept of integrated three-port interface for stand-alone photovoltaic applications. The three-port topology interfaces one solar panel input port and one bi-directional battery port to an isolated output port which generates a rectified sinusoid voltage. Then an unfolding circuit can be adopted to generate an ac wave with very high efficiency because it is operated at very low frequency (50/60Hz). Therefore, this proposed structure uses only one switch-mode conversion stage to replace several independent converters and inverters in order to reduce component count and save the cost, making itself a valuable choice for low cost low power standalone PV system. The circuit operation and control architecture of the three-port interface are presented. It can achieve maximum power harvesting for the solar port, battery charge control for the battery port, while keeping a regulated rectified sinusoid output. The experiments of the three-port interface confirm the topology operation and its ability to achieve the multi-functional power management control. © 2010 IEEE.

Publication Date

12-20-2010

Publication Title

2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

Number of Pages

1471-1478

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/ECCE.2010.5618252

Socpus ID

78650115633 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/78650115633

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