An Improved Current Controller to ensure the robust performance of grid-connected converters under weak grid conditions

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6 Citationer (Scopus)

Abstrakt

Voltage Source Converters (VSCs) operating in very weak grids with low Short Circuit Ratio (SCR) are known to meet stability challenges. This article investigates instability of a grid connected current-controlled converter under weak grid conditions, which is often attributed to the dynamic interaction between the phase-locked loop (PLL) and system impedance networks. To accomplish this object, available approaches are overviewed, and their advantages and disadvantages are briefly explained. Then a simple yet effective technique based on the joint operation of virtual impedance technique and an amplitude estimation strategy is presented to tackle their shortcomings. The effectiveness of the proposed strategy is finally evaluated using the simulation results.
OriginalsprogEngelsk
TitelProceedings of 16th IEEE International Conference on Environment and Electrical Engineering (EEEIC), 2016
Antal sider6
ForlagIEEE Press
Publikationsdatojun. 2016
ISBN (Elektronisk)978-1-5090-2320-2
DOI
StatusUdgivet - jun. 2016
Begivenhed16 IEEE International Conference on Environment and Electrical Engineering - Florence, Italien
Varighed: 7 jun. 201610 jun. 2016
http://eeeic.eu/

Konference

Konference16 IEEE International Conference on Environment and Electrical Engineering
LandItalien
ByFlorence
Periode07/06/201610/06/2016
Internetadresse

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