Wind power generation has become an established alternative power source. Especially large wind farms in remote or offshore locations are emerging strongly. Their grid connection demands new transmission solutions as distances increase. A newly proposed voltage source converter (VSC) based HVDC transmission system looks promising compared to conventional AC and DC transmission systems. This paper presents a benchmark of the estimated annual energy production (AEP) of a 200 MW wind farm depending on the transmission distance and the average wind speed. The proposed system is compared to two state-of-the-art wind farm topologies: Variable-speed wind turbines with doubly-fed induction generators (DFIG) and either AC or DC transmission systems. The benchmark comprises detailed drive-train, converter, transformer, distribution and transmission loss models. The total system losses as well as the loss distribution between the different components as a function of the transmission distance and the average wind speed allows important conclusions for future wind farm projects
[1]
A-K. Skytt,et al.
Light for connection of wind farms
,
2001
.
[2]
S. Shaw,et al.
Enabling offshore wind developments
,
2002
.
[3]
Staffan Norrga,et al.
New Voltage Source Converter Topology for HVDC Grid Connection of Offshore Wind Farms
,
2004
.
[4]
Staffan Norrga,et al.
New topology for more efficient AC/DC converters for future offshore wind farms
,
2004
.
[5]
Lie Xu,et al.
HVDC transmission for large offshore wind farms
,
2002
.
[6]
S. Norrga,et al.
Design considerations for a medium frequency transformer in a line side power conversion system
,
2004,
2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).
[7]
Hannele Holttinen,et al.
A Multi-Turbine Power Curve Approach
,
2004
.
[8]
Heinrich Brakelmann.
Kabelverluste und Verlustkosten in Windparks
,
2002
.
[10]
Staffan Norrga.
A Novel Soft-switched Bidirectional Isolated AC/DC Converter
,
2002
.