Reliability Analysis of Wireless Power Transfer for Electric Vehicle Charging based on Continuous Markov Process

2023 Fourth International Symposium on 3D Power Electronics Integration and Manufacturing (3D-PEIM) Pub Date : 2023-02-01 DOI:10.1109/3D-PEIM55914.2023.10052353

Milad Behnamfar, Md. Abu Taher, Alexis Polowsky, Sukanta Roy, Mohd Tariq, A. Sarwat

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Abstract

In this paper, the reliability analysis of wireless power transfer system for charging electric vehicles using Markov process is presented. Since wireless chargers of electric vehicles are supposed to be exposed to various weather conditions that affect the performance and aging of the system; therefore, reliability analysis of this type of system is required. The reliability analysis of wireless power transfer systems for charging electric vehicles is missing in the literature. Every wireless charger for electric vehicles is composed of five different sub-systems, including a full bridge single-phase inverter, a compensation network in both input and output sides, an inductive coil, and a rectifier. The five sub-systems are analyzed on individual reliability separately, to determine the overall system reliability. The result found have identified the system as highly reliable over twenty years of lifetime with having 66.31% percent availability.

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基于连续马尔可夫过程的电动汽车无线充电可靠性分析

本文利用马尔可夫过程对电动汽车充电无线电力传输系统的可靠性进行了分析。由于电动汽车的无线充电器应该暴露在各种天气条件下，这些天气条件会影响系统的性能和老化;因此，需要对这类系统进行可靠性分析。文献中缺乏对电动汽车充电无线电力传输系统的可靠性分析。每个电动汽车无线充电器都由五个不同的子系统组成，包括全桥单相逆变器、输入和输出侧的补偿网络、感应线圈和整流器。对五个子系统分别进行了单独的可靠性分析，确定了系统的总体可靠性。结果表明，该系统在20年的使用寿命中具有很高的可靠性，可用性为66.31%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 Fourth International Symposium on 3D Power Electronics Integration and Manufacturing (3D-PEIM)

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