What question did this study set out to answer?

To optimize battery energy storage sizing and operational power dispatch in urban railway smart grids under solar generation and electric vehicle charging uncertainties.

April 21, 2025IEEE Transactions on Intelligent Transportation Systems

Stochastic Energy Scheduling for Urban Railway Smart Grids Considering Distributed EVs Charging and PV Output Uncertainty

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Authors

MCMinwu ChenSouthwest Jiaotong University YCYinyu ChenHuazhong University of Science and Technology ZLZongyou LiangSouthwest Jiaotong University

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Implication

Simulation study reveals an 18.16% operational cost reduction in urban railway grids integrating solar and electric vehicle charging, suggesting improved regenerative braking energy utilization.

Key Points

To optimize battery energy storage sizing and operational power dispatch in urban railway smart grids under solar generation and electric vehicle charging uncertainties.
Designed a bi-level stochastic optimization model where the upper level minimizes investment and battery degradation costs, while the lower level minimizes electrical operating costs via mixed-integer linear programming.
Formulated catenary power transmission losses using piecewise linearization and transformed solar and electric vehicle chance constraints into deterministic constraints via sample average approximation.
Simulated the energy scheduling system using actual urban rail transit line configurations and traction load profiles.
Decreased total railway operational expenses by 18.16% using the bi-level stochastic scheduling framework.
Successfully coordinated the utilization of regenerative braking energy, solar generation, and battery storage to support local electric vehicle charging station demand.

Cite This Study

Chen et al. (2025) studied this question.

synapsesocial.com/papers/6a7dff36629c956ef7ac8e09 https://doi.org/10.1109/tits.2025.3558735

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Implication

Simulation study reveals an 18.16% operational cost reduction in urban railway grids integrating solar and electric vehicle charging, suggesting improved regenerative braking energy utilization.

Stochastic Energy Scheduling for Urban Railway Smart Grids Considering Distributed EVs Charging and PV Output Uncertainty

Discussion

Member takes

Implication

Key Points

Cite This Study

Stochastic Energy Scheduling for Urban Railway Smart Grids Considering Distributed EVs Charging and PV Output Uncertainty

Discussion

Member takes

Implication

Key Points

Cite This Study

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