Integration of a lithium-ion battery in a micro-photovoltaic system: Passive versus active coupling architectures
- A balcony photovoltaic (PV) system, also known as a micro-PV system, is a small PV system consisting of one or two solar modules with an output of 100–600 Wp and a corresponding inverter that uses standard plugs to feed the renewable energy into the house grid. In the present study we demonstrate the integration of a commercial lithium-ion battery into a commercial micro-PV system. We firstly showA balcony photovoltaic (PV) system, also known as a micro-PV system, is a small PV system consisting of one or two solar modules with an output of 100–600 Wp and a corresponding inverter that uses standard plugs to feed the renewable energy into the house grid. In the present study we demonstrate the integration of a commercial lithium-ion battery into a commercial micro-PV system. We firstly show simulations over one year with one second time resolution which we use to assess the influence of battery and PV size on self-consumption, self-sufficiency and the annual cost savings. We then develop and operate experimental setups using two different architectures for integrating the battery into the micro-PV system. In the passive hybrid architecture, the battery is in parallel electrical connection to the PV module. In the active hybrid architecture, an additional DC-DC converter is used. Both architectures include measures to avoid maximum power point tracking of the battery by the module inverter. Resulting PV/battery/inverter systems with 300 Wp PV and 555 Wh battery were tested in continuous operation over three days under real solar irradiance conditions. Both architectures were able to maintain stable operation and demonstrate the shift of PV energy from the day into the night. System efficiencies were observed comparable to a reference system without battery. This study therefore demonstrates the feasibility of both active and passive coupling architectures.…
Document Type: | Article (reviewed) |
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Zitierlink: | https://opus.hs-offenburg.de/7617 | Bibliografische Angaben |
Title (English): | Integration of a lithium-ion battery in a micro-photovoltaic system: Passive versus active coupling architectures |
Author: | René BehmannORCiDGND, Jack Phan, Artur RootStaff MemberGND, Michael SchmidtStaff MemberORCiDGND, Wolfgang G. BesslerStaff MemberORCiDGND |
Year of Publication: | 2023 |
Date of first Publication: | 2023/06/27 |
Publisher: | Elsevier |
Page Number: | 16 |
First Page: | 1 |
Last Page: | 16 |
Article Number: | 111748 |
Parent Title (English): | Solar Energy |
Issue: | 262 |
ISSN: | 0038-092X (Print) |
ISSN: | 1471-1257 (Online) |
DOI: | https://doi.org/10.1016/j.solener.2023.05.025 |
URN: | https://urn:nbn:de:bsz:ofb1-opus4-76179 |
Language: | English | Inhaltliche Informationen |
Institutes: | Forschung / INES - Institut für nachhaltige Energiesysteme |
Fakultät Elektrotechnik, Medizintechnik und Informatik (EMI) (ab 04/2019) | |
Fakultät Maschinenbau und Verfahrenstechnik (M+V) | |
Tag: | lithium-ion battery; micro-photovoltaic system | Formale Angaben |
Relevance: | Wiss. Zeitschriftenartikel reviewed: Listung in Master Journal List |
Open Access: | Open Access |
Diamond | |
Licence (German): | Creative Commons - CC BY - Namensnennung 4.0 International |