Hardware-in-the-loop testbed development for validating novel photovoltaic battery energy storage system concepts

Mahsa Doosthosseini, Partha P. Mishra, Hosam K. Fathy

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

1 Scopus citations


This paper presents a real-time hardware-in-the-loop (HIL) setup capable of experimentally emulating the coupling between lithium-ion batteries and photovoltaic (PV) cells. The paper is motivated by earlier research showing that certain 'hybrid' battery-PV integration topologies are inherently self-balancing, in the sense that differences in state of charge between battery cells diminish with time without the need for active balancing circuitry. The literature shows this self-balancing property using both theoretical analyses and simulation studies, but there is still a need for experimental demonstrations. Our goal in this paper is to validate this self-balancing property in a hybrid string experimentally. Towards this goal, we construct a HIL setup that physically emulates the voltage-current characteristics of three PV arrays and exposes three series-connected battery cells to these characteristics in real time. The setup uses an ARM microcontroller, together with three DC-DC converters and isolated serial communications, to achieve this emulation. Experiments conducted using this setup show that certain topologies for integrating PV cells with lithium-ion batteries are indeed self-balancing. Moreover, the setup provides the flexibility for exploring and testing other potential integration topologies and operating conditions.

Original languageEnglish (US)
Title of host publication2019 American Control Conference, ACC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781538679265
StatePublished - Jul 2019
Event2019 American Control Conference, ACC 2019 - Philadelphia, United States
Duration: Jul 10 2019Jul 12 2019

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619


Conference2019 American Control Conference, ACC 2019
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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