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Performance Analysis of DC Primary Power Protection in Railway Cars Using a Transient Analysis Tool

机译:瞬态分析工具对铁路车辆直流一次电源保护的性能分析

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This paper presents a detailed simulation model developed in an EMT-type (Electromagnetic Transients-type) tool to study transient short- circuit performance of DC primary power protective devices in railway cars. Detailed models are needed since the fault level depends on the location of the moving train, the primary power architecture, and the vehicle operating conditions. Traditional AC RMS time-current curves (TCCs) and AC peak let-through curves are limited practices for protection analysis of current- limiting devices in DC systems. Theoretical background, modeling techniques and typical case studies are presented to demonstrate the functionality and the advantages of using a transient analysis tool for advanced protection studies.
机译:本文提出了一种在EMT型(电磁暂态)工具中开发的详细仿真模型,用于研究铁路车辆直流一次电源保护装置的瞬态短路性能。由于故障级别取决于行驶列车的位置,主要动力架构和车辆运行状况,因此需要详细的模型。传统的AC RMS时间-电流曲线(TCC)和AC峰值通过曲线是用于DC系统中限流设备保护分析的有限实践。介绍了理论背景,建模技术和典型案例研究,以演示使用瞬态分析工具进行高级保护研究的功能和优点。

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