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Dual inverter system with integrated energy storage for grid connected photovoltaic systems

conference contribution
posted on 2023-05-23, 18:12 authored by Shantha Jayasinghe Arachchillage, Vilathgamuwa, DM
-Smooth and fluctuation free power dispatch is strongly encouraged by grid operators and therefore energy storage is becoming an indispensable part in modern large scale grid connected photovoltaic (PV) systems. As a result, associated power converter topologies and energy storage interfacing technologies are currently receiving unprecedented attention. The most common energy storage interfacing technique used in grid connected PV systems is the use of an additional power electronic converter between the energy storage system and the grid connecting inverter. Taking the disadvantages of this implementation into account this paper proposes a dual inverter based battery direct integration scheme for grid connected PV systems. In this approach, the generation of proper multilevel voltage waveforms is a complicated process, particularly when the battery is charging. A modified space vector modulation method and switching strategy are proposed in this paper to address this issue. Simulation results are presented to prove the efficacy of the proposed topology and the modulation technique.

History

Publication title

2015 IEEE 11th International Conference on Power Electronics and Drive Systems (PEDS)

Editors

KJ Tseng and DM Vilathgamuwa

Pagination

796-803

ISBN

978-1-4799-4402-6

Department/School

Australian Maritime College

Publisher

Institute of Electrical and Electronics Engineers

Place of publication

Australia

Event title

2015 IEEE Power and Energy Society General Meeting

Event Venue

Sydney, Australia

Date of Event (Start Date)

2015-06-09

Date of Event (End Date)

2015-06-12

Repository Status

  • Restricted

Socio-economic Objectives

Residential energy efficiency