Analysis of Cascading Failures of Ship's Integrated Power DC Area Distribution System

2022 IEEE 2nd International Conference on Data Science and Computer Application (ICDSCA) Pub Date : 2022-10-28 DOI:10.1109/ICDSCA56264.2022.9987871

Jing-Ping Wu, Zhihao Ye, Xueyan Zhang

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Abstract

Aiming at the problem of cascading failures in the DC distribution area of the ship integrated power system, a probability analysis method based on Markov process is used to construct the space state model of the DC distribution system, generate the full state space of the system, and analyze the probability of cascading failures in the system.. Firstly, the theory and simulation analysis of the mechanism of the cascading failure of the ship's power system are carried out. On this basis, according to the structure of the DC distribution area under the working condition of a single inverter, a risk assessment model of system cascading failure is constructed, and the risk index of failure is obtained. Finally, through example verification, the development path of cascading failures is obtained, the probability of cascading failures is calculated, and the key lines in the system are found, which is convenient for the analysis of cascading failures under more complex working conditions, and improves the vitality of ship navigation.

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船舶综合直流配电系统级联故障分析

针对船舶综合电力系统直流配电区域级联故障问题，采用基于马尔可夫过程的概率分析方法，构建了直流配电系统的空间状态模型，生成了系统的全状态空间，分析了系统级联故障的概率。首先，对舰船动力系统级联故障机理进行了理论分析和仿真分析。在此基础上，根据单逆变器工况下直流配电区结构，构建了系统级联故障风险评估模型，得到了故障风险指数。最后，通过实例验证，得到了级联故障的发展路径，计算了级联故障的概率，找到了系统中的关键线路，便于在更复杂的工况下分析级联故障，提高了船舶航行的活力。

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2022 IEEE 2nd International Conference on Data Science and Computer Application (ICDSCA)

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