Hidden failures in protection systems and their impact on wide-area disturbances

2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI:10.1109/PESW.2001.916941

D. Elizondo, J. De La Ree, A. Phadke, S. Horowitz

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引用次数: 86

Abstract

This paper explores hidden failures in protection systems, which have been identified as key contributors in the cascading of power system wide-area disturbances. The original definition of hidden failure, which is a failure that remains undetected and is uncovered by another system event, is included as are the developments of hidden failure sequence of events and a methodology for hidden failure identification. This method is based on protection element functionality defects (PEFD). Hidden failures modes are developed based on the relaying implementation for primary protection, back-up protection and special protection systems. Wide-area disturbances based on North American Reliability Council (NERC) reports are analyzed and hidden failures are identified employing the developed methodology. The mechanisms in the wide-area disturbances are summarized. Regions of vulnerability and areas of consequence are important concepts that identify the critical elements from the point of view of hidden failures.

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保护系统的隐性故障及其对广域干扰的影响

本文探讨了保护系统中的隐性故障，这些故障已被确定为电力系统广域干扰级联的关键因素。隐藏故障的原始定义，即未被检测到并被另一个系统事件发现的故障，包括隐藏故障事件序列和隐藏故障识别方法的发展。该方法基于保护元件功能缺陷(PEFD)。基于继电保护、后备保护和特殊保护系统的继电保护实现，提出了隐故障模式。基于北美可靠性委员会(NERC)报告分析了广域干扰，并采用所开发的方法识别了隐藏故障。总结了广域扰动产生的机理。脆弱区域和后果区域是重要的概念，从隐藏故障的角度确定关键因素。

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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来源期刊

2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)

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