An Enhanced Hybrid Solar System and Energy Storage with Shaped DC-Link Voltage

Hossein Dehghani Tafti, Glen G. Farivar, Aditi Narang, Christopher D. Townsend, Georgios Konstantinou, Josep Pou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The hybrid combination of photovoltaic (PV) panels and energy storage systems (ESS) has become popular in PV power plants (PVPPs), in order to comply with new grid codes and standards and provide grid support functionalities. A shaping strategy of the dc-link voltage of the PVPP, the same as the voltage reference of the grid-connected inverter, is proposed in this paper. The main contribution of the proposed control algorithm is to simultaneously achieve several control aspects, i.e., a) shaping the dc-link voltage same as the required voltage reference and reduces the inverter switching, which reduces the switching losses, b) smoothing the injected power to the grid thanks to the ESS, and c) Improving the harmonic performance of the grid-connected inverter that reduces the size of the grid-connection filter. The performance of the proposed control algorithm is verified on a hybrid PV-ESS simulation platform under various operational conditions and results are compared with the conventional solutions.

Original languageEnglish
Title of host publication2019 9th International Conference on Power and Energy Systems, ICPES 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728126586
DOIs
Publication statusPublished - Dec 2019
Event9th International Conference on Power and Energy Systems, ICPES 2019 - Perth, Australia
Duration: Dec 10 2019Dec 12 2019

Publication series

Name2019 9th International Conference on Power and Energy Systems, ICPES 2019

Conference

Conference9th International Conference on Power and Energy Systems, ICPES 2019
Country/TerritoryAustralia
CityPerth
Period12/10/1912/12/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

ASJC Scopus Subject Areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Control and Optimization

Keywords

  • Active power control
  • dc-link voltage shaping
  • energy storage system
  • flexible power point tracking
  • photovoltaic systems

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