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Flexible Grid Connection and Islanding of SPC-Based PV Power Converters
Open accessAbstract
At the present time, distributed generation systems are required to disconnect from the main grid when there is an outage. In order to fulfill this requirement, photovoltaic (PV) power plants are equipped with anti-islanding algorithms, embedded in the converters controller, to avoid the island operation. However, the current trends in the development of the future electrical networks evidence that it is technically feasible and economically advantageous to keep feeding islanded systems under these situations, without cutting the power supply to the loads connected to the network. Nevertheless, commercial PV power converters are programmed as grid-feeding converters and they are unable to work in island mode if there is not an agent forming the grid. In order to overcome this problem, the synchronous power controller (SPC) is presented in this paper as a suitable alternative for controlling PV inverters. As will be further discussed, this controller permits PV plants to operate seamlessly in grid-connected and island mode, with no need of changing the control structure in either case. Moreover, the participation of SPC-based power converters integrating energy storage enables other grid-feeding systems to contribute to the grid operation in island conditions. The good results achieved with the SPC in different conditions will be shown in simulations, and also with experiments considering a real PV power plant combining SPC and commercial PV inverters.
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References 29 · Cited by 126
Research works printed but not linked: 29
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Metadata
- Authors
- Rodriguez, P., Citro, C., Candela, J. I., Rocabert, J., & Luna, A.
- Affiliations
- University of Salerno (IT)
- Universitat Politècnica de Catalunya (ES)
- Venue
- IEEE Transactions on Industry Applications
- Published
- 2018-05
- Volume
- 54
- Issue
- 3
- Pages
- 2690-2702
- ISSN
- 0093-9994 (ISSN-L)
- 1939-9367
- OpenAlex
- W2790185808
- Cited by
- 126
- References
- 29
- Citations by year
- 2026: 3 · 2025: 10 · 2024: 13 · 2023: 22 · 2022: 16 · 2021: 24 · 2020: 21 · 2019: 13 · 2018: 4
- FWCI
- 9.60
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Locations
- IEEE Transactions on Industry Applications (publishedVersion)
- UPCommons institutional repository (Universitat Politècnica de Catalunya) (submittedVersion, cc-by-nc-nd)
- Funders
- Spanish Ministry of Economy and Competitiveness (ENE2014-60228-R)
- Topics
- Physical Sciences › Engineering › Control and Systems Engineering › Microgrid Control and Optimization
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Islanding Detection in Power Systems
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Photovoltaic System Optimization Techniques
- Keywords
- photovoltaic inverter, islanded operation, grid connection, anti-islanding, distributed generation, energy storage, photovoltaic power plants
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