Wind Farm Electrical Systems Evaluation with EeFarm-II

Wind turbines in Sloterdijk - Image by Alix Guillard (GNU FDL)

[tweetmeme http://www.URL.com]  Jan Pierik (ECN), Urban Axelsson, Emil Eriksson, Daniel Salomonsson (Vattenfall AB) and Pavol Bauer, Balazs Czech (Delft University of Technology) have issued a paper titled „A Wind Farm Electrical Systems Evaluation with EeFarm-II.“ EeFarm-II is used to evaluate 13 different electrical systems for a 200 MW wind farm with a 100 km connection to shore. The evaluation is based on component manufacturer data of 2009. AC systems are compared to systems with DC connections inside the wind farm and DC connection to shore. Two options have the best performance for this wind farm size and distance: the AC system and the system with a DC connection to shore. EeFarm-II is a user friendly computer program for wind farm electrical and economic evaluation. It has been built as a Simulink Library in the graphical interface of Matlab-Simulink. EeFarm-II contains models of wind turbines, generators, transformers, AC cables, inductors, nodes, splitters, PWM converters, thyristor converters, DC cables, choppers and statcoms.

The introduction to this good article reads:

Europe’s offshore wind potential is enormous and able to power Europe seven times over. Over 100 GW of offshore wind projects are already in various stages of planning. If realized, these projects would produce 10% of the EU’s electricity whilst avoiding 200 million tonnes of CO2 emissions each year.

A number of large wind farms in the North Sea is currently in the design stage. The layout and the components of these wind farm are chosen, based on a good estimate of the electricity production costs of different options. To estimate the production costs, the investment costs, the electrical losses and the produced electric power have to be determined. This can be realized by calculating the voltages and currents in all wind farm components.

In this paper, EeFarm-II is used to evaluate thirteen different electrical systems for a 200 MW wind farm with a 100 km connection to shore. The systems are grouped by their way of operation: constant speed, individual variable speed, cluster variable speed and park variable speed. For this evaluation a database with component manufacturer data of 2009 is used. The investment costs for the HVDC converters are from 2007.

Read the full article here in PDF.

Citation:  Pierik, Jan; Axelsson, Urban; Eriksson, Emil; Salomonsson, Daniel; Bauer, Pavol; Czech, Balazs. 2010. “A Wind Farm Electrical Systems Evaluation with EeFarm-II.” Energies 3, no. 4: 619-633.

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  1. […] here: Wind Farm Electrical Systems Evaluation with EeFarm-II « Facultas … By admin | category: DELFT University of Technology | tags: balazs, balazs-czech, daniel, […]



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