Journal
ENERGIES
Volume 15, Issue 19, Pages -Publisher
MDPI
DOI: 10.3390/en15197035
Keywords
adaptive step size; charging station location; chaotic mapping; dynamic threshold; reverse learning; whale optimization algorithm
Categories
Funding
- Shandong Provincial Natural Science Foundation [ZR2020QF059, ZR2021MF131]
- Foundation of State Key Laboratory of Automotive Simulation and Control [20181119]
- National Natural Science Foundation of China [62203271]
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This paper proposes an improved whale optimization algorithm (IWOA) based on hybrid strategies to enhance the search ability and solution accuracy of the original algorithm in solving location models or high-dimensional problems. The use of chaos mapping and reverse learning mechanism, along with improved convergence factor and probability threshold, greatly improves the solution capability of IWOA. The experimental results demonstrate the effectiveness of IWOA in solving optimization problems and reducing the comprehensive cost in site selection for electric vehicle charging stations.
The charging station location model is a nonlinear programming model with complex constraints. In order to solve the problems of weak search ability and low solution accuracy of the whale optimization algorithm (WOA) in solving location models or high-dimensional problems, this paper proposes an improved whale optimization algorithm (IWOA) based on hybrid strategies. Chaos mapping and reverse learning mechanism are introduced in the original algorithm, and the change mode of convergence factor and probability threshold is improved. Through optimization experiments on 18 benchmark functions, the test results show that IWOA has the best solution ability. Finally, IWOA is used to solve a site selection optimization model aiming at the minimum comprehensive cost. The results show that the proposed algorithm and model can effectively reduce the comprehensive cost of site selection. This provides a necessary decision-making reference for the scientific site selection for electric vehicle charging stations.
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