A Cost-Effective Power Ramp-Rate Control Strategy for Single-Phase Two-Stage Grid-Connected Photovoltaic Systems

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18 Citationer (Scopus)
639 Downloads (Pure)

Abstrakt

In the case of a wide-scale adoption of grid-connected Photovoltaic (PV) systems, more fluctuated power will be injected into the grid due to the intermittency of solar PV energy. A sudden change in the PV power can potentially induce grid voltage fluctuations, and thus challenge the stability of the grid. Hence, this sudden active power change resulting in a large power ramp-rate should be avoided in practice. In fact, some grid regulations also released strict rules on active power ramp-rates for PV systems. This paper proposes a cost-effective control strategy to limit the power ramp-rate for two-stage grid-connected PV systems. The main concept of the proposed scheme is to modify the maximum power point tracking algorithm in such a way to regulate the PV power at the left side of the maximum power point curve. As a consequence, the power ramp-rate can be controlled according to the set-point. Experiments conducted on a 3-kW single-phase two-stage grid-connected PV system have verified that the proposed solution can accomplish fast dynamics, high accuracy, and high robustness in the power ramp-rate control for PV systems.
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

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