Abstract
The existence of wake effect can affect the total power generation of a wind farm. To alleviate the impact of wake effect, numerous algorithms under the paradigm of evolutionary computation have been proposed to find the optimal layout of wind turbines. Previously, inspired by the self-adjustment capability among the individuals of a species in the natural world, we empowered the genetic algorithm (GA) with self-adaptivity and found that, by relocating the least efficient wind turbine to a new location with the help of a surrogate response surface of the power generation distribution, the performance of GA can be significantly improved. Following previous research, we discovered another major bottleneck that can cause the algorithm to be trapped into a suboptimal solution. A new bi-criteria identification and relocation (BCIR) mechanism is introduced to different versions of GA, including the conventional GA and our previous improved versions of GA. The introduction of BCIR does not require additional computation complexity. The effectiveness of this new mechanism is verified by conducting extensive experiments in two case studies, and both results show significant improvement over GA after adopting the new mechanism of BCIR.
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