The locating and sizing planning of battery swapping stations for electric vehicles is a complex nonlinear problem with multiple variables and constraints
which is hard to be solved by general mathematical methods. A joint method of Voronoi diagram and improved bats algorithm (IBA) is proposed to solve the problem. Considering the influence of centralized charging station
a multi-objective decision model considering annual infrastructure investment costs
location satisfaction and annual battery swapping costs is established. In order to transform the multi-objective decision model into single-objective weight model
the method of fuzzy entropy weight is introduced to avoid the shortcomings of both subjective weighting and objective weighting. An improved bats algorithm (IBA) is proposed
which introduces inertia weight and considers the speed update of individual extremum
taking the minimum weighted gross of the multi-objective decision as the condition
combining with the Voronoi diagram which divides the service area of each battery swapping station
and the optimal solution of locating and sizing planning of battery swapping stations is obtained. The simulation results prove the rationality and feasibility of the model and improved algorithm.
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