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Springer Science and Business Media LLC Scientific Reports 15(1)
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    초록·키워드

    The widespread adoption of electric vehicles (EVs) poses significant challenges to distribution system operations. When electric vehicle charging stations (EVCS) are installed without proper planning, they can negatively impact voltage stability and reliability in distribution systems leading to reduced customer satisfaction. To enhance distribution system charging station reliability, a novel 36-port design has been developed, incorporating identical and non-identical port configurations. This system operates within a 50-350 kW distribution network. The research employs failure rate analysis based on MILHDBK217F standards, while port probability functions for failure rate and reliability are assessed according to MILHBK-338B guidelines. The study introduces an evaluation process to determine charging station success rates based on individual port failure rates. The failure rate analysis for the charging station with 36-port configuration utilizes binomial distribution method. Additionally, the research includes a price assessment framework for the 36-port system, considering both failure rates and individual port maintenance success rates. The study evaluates distribution station voltage stability by examining individual port failure rates and the overall reliability of the 36-port configuration. Results demonstrate that the proposed design achieves reduced failure rates and maintenance costs while maintaining superior port arrangement reliability and voltage stability.

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