Benchmarking of Constant Power Generation Strategies for Single-Phase Grid-Connected Photovoltaic Systems

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

28 Citationer (Scopus)
969 Downloads (Pure)

Abstrakt

With a still increase of grid-connected photovoltaic (PV) systems, challenges have been imposed on the grid due to the continuous injection of a large amount of fluctuating PV power, like overloading the grid infrastructure (e.g., transformers) during peak power production periods. Hence, advanced active power control methods are required. As a cost-effective solution to avoid overloading, a constant power generation (CPG) control scheme by limiting the feed-in power has been introduced into the currently active grid regulations. In order to achieve a CPG operation, this paper presents three CPG strategies based on a power control method (P-CPG), a current limit method (I-CPG), and the perturb and observe algorithm (P&O-CPG). However, the operational mode changes (e.g., from the maximum power point tracking to a CPG operation) will affect the entire system performance. Thus, a benchmarking of the presented CPG strategies is also conducted on a 3-kW single-phase grid-connected PV system. Comparisons reveal that either the P-CPG or I-CPG strategies can achieve fast dynamics and satisfactory steady-state performance. In contrast, the P&O-CPG algorithm is the most suitable solution in terms of high robustness, but it presents poor dynamic performance.

OriginalsprogEngelsk
Artikelnummer8012524
TidsskriftI E E E Transactions on Industry Applications
Vol/bind54
Udgave nummer1
Sider (fra-til)447-457
Antal sider11
ISSN0093-9994
DOI
StatusUdgivet - 1 jan. 2018

Fingeraftryk Dyk ned i forskningsemnerne om 'Benchmarking of Constant Power Generation Strategies for Single-Phase Grid-Connected Photovoltaic Systems'. Sammen danner de et unikt fingeraftryk.

  • Projekter

  • Center Of Reliable Power Electronics (CORPE)

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

    01/04/201131/12/2016

    Projekter: ProjektForskning

    Citationsformater