Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Hybrid Cooperative Co-evolution Algorithm Framework for Optimising
  Power Take Off and Placements of Wave Energy Converters   Wave energy technologies have the potential to play a significant role in the
supply of renewable energy on a world scale. One of the most promising designs
for wave energy converters (WECs) are fully submerged buoys. In this work, we
explore the optimisation of WEC arrays consisting of a three-tether buoy model
called CETO. Such arrays can be optimised for total energy output by adjusting
both the relative positions of buoys in farms and also the power-take-off (PTO)
parameters for each buoy. The search space for these parameters is complex and
multi-modal. Moreover, the evaluation of each parameter setting is
computationally expensive -- limiting the number of full model evaluations that
can be made. To handle this problem, we propose a new hybrid cooperative
co-evolution algorithm (HCCA). HCCA consists of a symmetric local search plus
Nelder-Mead and a cooperative co-evolution algorithm (CC) with a backtracking
strategy for optimising the positions and PTO settings of WECs, respectively.
Moreover, a new adaptive scenario is proposed for tuning grey wolf optimiser
(AGWO) hyper-parameter. AGWO participates notably with other applied optimisers
in HCCA. For assessing the effectiveness of the proposed approach five popular
Evolutionary Algorithms (EAs), four alternating optimisation methods and two
modern hybrid ideas (LS-NM and SLS-NM-B) are carefully compared in four real
wave situations (Adelaide, Tasmania, Sydney and Perth) with two wave farm sizes
(4 and 16). According to the experimental outcomes, the hybrid cooperative
framework exhibits better performance in terms of both runtime and quality of
obtained solutions.

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The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: math
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: mtrl-th