Next Article in Journal
Thermodynamic Rarity and the Loss of Mineral Wealth
Previous Article in Journal
EROI Analysis for Direct Coal Liquefaction without and with CCS: The Case of the Shenhua DCL Project in China
 
 
Article

A Back-to-Back 2L-3L Grid Integration of a Marine Current Energy Converter

Division of Electricity, Swedish Centre for Renewable Electric Energy Conversion, Uppsala University, P.O. Box 534, 751 21 Uppsala, Sweden
*
Author to whom correspondence should be addressed.
Academic Editor: Jens Peter Kofoed
Energies 2015, 8(2), 808-820; https://doi.org/10.3390/en8020808
Received: 18 November 2014 / Revised: 12 January 2015 / Accepted: 19 January 2015 / Published: 26 January 2015
The paper proposes a back-to-back 2L-3L grid connection topology for a marine current energy converter. A prototype marine current energy converter has been deployed by a research group at Uppsala University. The concept behind the prototype revolves around a fixed pitch vertical axis turbine directly connected to a permanent magnet synchronous generator (PMSG). The proposed grid connection system utilizes a well known and proven two level voltage source converter generator-side combined with a three-level cascaded H-bridge (CHB) multilevel converter grid-side. The multilevel converter brings benefits in terms of efficiency, power quality and DC-link utilization. The system is here presented for a single marine current energy converter but can easily be scaled up for clusters of marine current energy converters. Control schemes for both grid-side and generator-side voltage source converters are presented. The start-up, steady state and dynamic performance of the marine current energy converter are investigated and simulation results are presented in this paper. View Full-Text
Keywords: marine current energy converter; grid connection; three-level cascaded H-bridge marine current energy converter; grid connection; three-level cascaded H-bridge
Show Figures

MDPI and ACS Style

Apelfröjd, S.; Ekström, R.; Thomas, K.; Leijon, M. A Back-to-Back 2L-3L Grid Integration of a Marine Current Energy Converter. Energies 2015, 8, 808-820. https://doi.org/10.3390/en8020808

AMA Style

Apelfröjd S, Ekström R, Thomas K, Leijon M. A Back-to-Back 2L-3L Grid Integration of a Marine Current Energy Converter. Energies. 2015; 8(2):808-820. https://doi.org/10.3390/en8020808

Chicago/Turabian Style

Apelfröjd, Senad, Rickard Ekström, Karin Thomas, and Mats Leijon. 2015. "A Back-to-Back 2L-3L Grid Integration of a Marine Current Energy Converter" Energies 8, no. 2: 808-820. https://doi.org/10.3390/en8020808

Find Other Styles

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop