Optimisation of Offshore Wind Farms Using a Genetic Algorithm

25th International Ocean and Polar Engineering conference, Hawaii, USA, 21-26 June 2015This is the author accepted manuscript. The final version is available from the International Society of Offshore and Polar Engineers via the DOI in this record.A modular framework for the optimisation of an offshore wind farm using a discrete genetic algorithm is presented. This approach uses a bespoke grid generation algorithm to define the discrete positions that turbines may occupy, thereby implicitly satisfying navigational and search and rescue constraints through the wind farm. The presented methodology takes a holistic approach, optimising both the turbine placement and intra-array cable network while minimising the levelised cost of energy and satisfying real-world constraints. This tool therefore integrates models for the assessment of the energy production including wake losses, the optimisation of the intra-array cables, and the estimation of the costs of the project over the lifetime. This framework will allow alternate approaches to wake and cost modelling as well as optimisation to be benchmarked in the future.This work is funded in part by the ETI and RCUK Energy programme for IDCORE (EP/J500847/1)