@conference { , title = {A MIP formulation of a Hybrid AC-DC offshore wind power plant topology}, year = {2018}, month = {01-06/07/2018}, type = {contributed presentation}, address = {Bordeaux}, abstract = {The current study analyses a hybrid o?shore wind farm design in which individual wind turbine power converters are removed from wind turbines and are installed on intermediate o?shore collector platforms. In this study a compact and small-sized mixedinteger linear optimisation model makes four decisions with the goal of minimising installation and operation costs: the location and the number of o?shore platforms and power converters to be installed, the optimal wind farm cable layout and the cluster optimal operating frequency of each wind turbine. The solutions found either for small and large o?shore wind farms improve notoriously real-world designs, reducing up to 8 percent installation and maintenance costs. On the optimization technical results, a variant of Local Branching has been developed, reducing in some cases more than half of computing time with respect to default Local Branching. The model developed serves as a mathematical tool to provide rigorous evidences of the suitability of the hybrid design versus traditional o?shore wind farm designs. }, keywords = {research; hybrid AC-DC; offshore wind power plant; local branching}, URL = {https://ismp2018.sciencesconf.org/}, author = {Cristina Corchero and Josep Homs-Moreno and F.-Javier Heredia and Lucia Igualada and Mikel de Prada} }