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	Power system operation risk assessment based on credibility theory. Part Two. Theory fundament
	Feng Yong-qing ; Wu Wen-chuan ; Zhang Bo-ming ; Sun Hong-bin ; He Yun-liang
	2010-05-06 ; 2010-05-06
关键词	Theoretical or Mathematical/ fuzzy systems power overhead lines power transmission faults power transmission reliability probability risk management/ power system operation risk assessment credibility theory power overhead lines fault possibility field running line reliability theory power system uncertainty probability theory fuzzy theory power system research axiomatic foundation/ B8120 Power transmission, distribution and supply B8130F Overhead power lines B0240Z Other topics in statistics
中文摘要	The encountered new problems in real studies are the traditional statistical reliability index of overhead lines cannot exactly express the fault possibility of field running lines, and it is impossible to complete the operating risk assessment of the whole system by purely adopting the reliability theory. In fact, the uncertainty of power systems includes both aspects of probability and fuzziness. Since probability theory and fuzzy theory belong to independent branches of mathematics, and used to be computed separately in power system research. Till 2004 the credibility theory is completed as one of the mathematic branches in mathematic field to give the axiomatic foundation of fuzzy theory based on measure theory, and provide the rigorous mathematic foundation of probability and fuzziness evaluations. In this paper the reason why credibility theory adopted in operation risk assessment is presented first. Then the main principles of credibility theory are introduced, which include axioms, credibility measure, expected value of fuzzy variable and random fuzzy variable etc. These theories mentioned above are very important for risk assessment based on credibility theory.
语种	中文 ; 中文
出版者	State Power Corp. of China ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11259]
专题	清华大学
推荐引用方式 GB/T 7714	Feng Yong-qing,Wu Wen-chuan,Zhang Bo-ming,et al. Power system operation risk assessment based on credibility theory. Part Two. Theory fundament[J],2010, 2010.
APA	Feng Yong-qing,Wu Wen-chuan,Zhang Bo-ming,Sun Hong-bin,&He Yun-liang.(2010).Power system operation risk assessment based on credibility theory. Part Two. Theory fundament..
MLA	Feng Yong-qing,et al."Power system operation risk assessment based on credibility theory. Part Two. Theory fundament".(2010).

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