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Optimum design of medium-voltage DC collector grids depending on the offshore-wind-park power

By: Stieneker, Marco; Mortimer, Benedict J.; Averous, Nurhan Rizqy; Stagge, Hanno; De Doncker, Rik W.;

2014 / IEEE


This item from - IEEE Conference - 2014 IEEE Symposium on Power Electronics and Machines for Wind and Water Applications (PEMWA) - DC collector grids within offshore wind park offer advantages regarding efficiency and investment costs. Dual-active bridge (DAB) dc-dc converter systems can be applied for stepping-up the dc output-voltage of wind turbines (WT). The increase of the voltage level reduces the effort for cabling and increases the system efficiency. Within this paper, the advantage of DAB converter systems used in offshore medium-voltage dc (MVDC) grids is presented. Also, the optimum design of wind park clusters regarding the wake effect and grid losses is investigated to maximize the energy yield.