A Bi-Level Optimization and Scheduling Strategy for Charging Stations Considering Battery Degradation

This paper proposes a bi-level optimization scheduling strategy for integrated photovoltaic (PV) and energy storage systems (ESS) to meet electric vehicle (EV) charging demands while reducing charging costs. First, a battery degradation cost model is developed in order to convert the long-term costs...

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Vydáno v:Energies (Basel) Ročník 16; číslo 13; s. 5070
Hlavní autoři: Yang, Qiwei, Huang, Yantai, Zhang, Qiangqiang, Zhang, Jinjiang
Médium: Journal Article
Jazyk:angličtina
Vydáno: Basel MDPI AG 01.07.2023
Témata:
Aging
Algorithms
Alternative energy sources
Analysis
Batteries
Battery chargers
battery degradation
charging stations
Construction costs
Efficiency
Electric vehicle charging stations
Electric vehicles
Electricity distribution
Emissions
Energy consumption
Energy management
Energy storage
Mathematical optimization
Optimization algorithms
optimized scheduling
Prices and rates
PSO-SQP algorithm
Renewable resources
Scheduling
ISSN:1996-1073, 1996-1073
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Shrnutí:This paper proposes a bi-level optimization scheduling strategy for integrated photovoltaic (PV) and energy storage systems (ESS) to meet electric vehicle (EV) charging demands while reducing charging costs. First, a battery degradation cost model is developed in order to convert the long-term costs into short-term costs for real-time operation. The upper layer of ESS and power grid operation strategies are obtained by minimizing costs associated with battery degradation and distribution grid costs. The lower layer considers the PV uncertainty and the error caused by the upper layer operation strategy, and obtains the lower layer operation strategy by adding a penalty function to minimize fluctuations in power. Second, the author proposes a global optimization algorithm that combines Particle Swarm Optimization (PSO) and Sequential Quadratic Programming (SQP) in order to solve the above-mentioned models, effectively combining the global search feature of PSO with the local search capability of SQP. Finally, the bi-level optimization scheduling strategy is obtained by solving the model through the algorithm. Simulation results verify the practicality of the scheduling strategy and the effectiveness of the proposed algorithm.
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ISSN:1996-1073
1996-1073
DOI:10.3390/en16135070