Open AccessOptimization of regular offshore wind-power plants using a non-discrete evolutionary algorithm
Author(s) -
Angel G. Gonzalez-Rodriguez,
Manuel Burgos Payán,
John Riquelme,
Javier Serrano González
Publication year - 2017
Publication title -
aims energy
Language(s) - English
Resource type - Journals
eISSN - 2333-8334
pISSN - 2333-8326
DOI - 10.3934/energy.2017.2.173
Subject(s) - offshore wind power , marine engineering , range (aeronautics) , profitability index , computer science , mathematical optimization , evolutionary algorithm , process (computing) , wind power , operator (biology) , algorithm , operations research , mathematics , engineering , aerospace engineering , economics , biochemistry , chemistry , electrical engineering , finance , repressor , transcription factor , gene , operating system
Offshore wind farms (OWFs) often present a regular configuration mainly due to aesthetical considerations. This paper presents a new evolutionary algorithm that optimizes the location, configuration and orientation of a rhomboid-shape OWF. Existing optimization algorithms were based on dividing the available space into a mess of cells and forcing the turbines to be located in the centre of a cell. However, the presented algorithm searches for the optimum within a continuous range of the eight parameters that define the OWF, which allows including a gradient-based local search operator to improve the optimization process. The study starts from a review of the economic data available in the bibliography relative to the most significant issues influencing the profitability of the investment in terms of the Internal Rate of Return (IRR). In order to address the distinctive characteristics of OWFs, specific issues arise which have been solved. The most important ones are: interpretation of nautical charts, utilization of the seabed map with different load-bearing capacities, and location of the shoreline transition