Delta Power Control Strategy for Multi-String Grid-Connected PV Inverters

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11 Citationer (Scopus)
323 Downloads (Pure)

Abstrakt

With a still increasing penetration level of grid-connected PV systems, more advanced active power control functionalities have been introduced in certain grid regulations. A delta power constraint, where a portion of the active power from the PV panels is reserved during operation, is required for grid support (e.g., during frequency deviation). In this paper, a cost-effective solution to realize delta power control for grid-connected PV systems is presented, where the residential/commercial multi-string PV inverter configuration is adopted. This control strategy is a combination of Maximum Power Point Tracking (MPPT) and Constant Power Generation (CPG) modes. In this control scheme, one PV string operating in the MPPT mode estimates the available power, while the other PV strings regulate the total PV power by the CPG control strategy in such a way that the delta power constraint for the entire PV system is achieved. Simulations and experiments have been performed on a 3-kW single-phase grid-connected PV system. The results have confirmed the effectiveness of the delta power control strategy, where the power reserve according to the delta power constraint is achieved under several operating conditions.
OriginalsprogEngelsk
TitelProceedings of the 8th Annual IEEE Energy Conversion Congress and Exposition (ECCE) 2016
Antal sider7
ForlagIEEE Press
Publikationsdatosep. 2016
ISBN (Elektronisk)978-1-5090-0737-0
DOI
StatusUdgivet - sep. 2016
Begivenhed 8th Annual IEEE Energy Conversion Congress & Exposition: ECCE 2016 - Milwaukee, WI, USA
Varighed: 18 sep. 201622 sep. 2016
http://www.ieee-ecce.org/

Konference

Konference 8th Annual IEEE Energy Conversion Congress & Exposition
LandUSA
ByMilwaukee, WI
Periode18/09/201622/09/2016
SponsorIEEE, IEEE Industry Applications Society (IAS), IEEE Power Electronics and Industry Applications Societies (PELS)
Internetadresse

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  • Projekter

  • Center Of Reliable Power Electronics (CORPE)

    Blaabjerg, F., Munk-Nielsen, S., Pedersen, K. & Popok, V.

    01/04/201131/12/2016

    Projekter: ProjektForskning

    Citationsformater

    Sangwongwanich, A., Yang, Y., Blaabjerg, F., & Sera, D. (2016). Delta Power Control Strategy for Multi-String Grid-Connected PV Inverters. I Proceedings of the 8th Annual IEEE Energy Conversion Congress and Exposition (ECCE) 2016 IEEE Press. https://doi.org/10.1109/ECCE.2016.7854998