AC power flow importance measures considering multi-element failures

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• 作者：Jian Li^a ; ^b ; ^c ; ^{ethanlee2006@126.com} ; Leonardo Dueñ ; as-Osorio^b ; ^{leonardo.duenas-osorio@rice.edu} ; Changkun Chen^c ; ^{cckchen@csu.edu.cn} ; Congling Shi^a ; ^{shicl@chinasafety.ac.cn}
• 关键词：AC power flow ; N-k reliability ; Importance ranking ; Cascading failure ; Functional reliability
• 刊名：Reliability Engineering & System Safety
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：160
• 期：Complete
• 页码：89-97
• 全文大小：618 K
• 卷排序：160

文摘

We propose a novel importance measure based on joint failures and AC power flow. A cascading failure model considers both AC power flow and optimal power flow. We find that N-3 analyses are sufficient to measure the importance of an element. Power demand impacts the importance of substations but less so that of generators. DC models fail to identify some key elements, despite correlating with AC models.