[雙語翻譯]電氣供配電外文翻譯--配電系統(tǒng)可靠性的理論研究分析計(jì)算

1、14800 英文單詞， 英文單詞，2.3 萬英文字符，中文 萬英文字符，中文 8200 字文獻(xiàn)出處： 文獻(xiàn)出處：Al-Muhaini M, Heydt G T, Huynh A. The reliability of power distribution systems as calculated using system theoretic concepts[C]// Power and Energy Society General

2、 Meeting. IEEE, 2010:1-8.附錄一 英文原文The Reliability of Power Distribution Systemsas Calculated Using System Theoretic ConceptsMohammad Al-Muhaini, Student Member, IEEE Gerald T. Heydt, Life Fellow, IEEEAnthony Huynh, Stude

3、nt Member, IEEEAbstract — Reliability of distribution systems is an important issue in power engineering for both utilities and customers. Power distribution reliability is closely related to individual component reliabi

4、lity. In this paper, the reliability as measured by certain count indices, mainly the System Average Interruption Duration Index (SAIDI) and the System Average Interruption Frequency Index (SAIFI), is quantified in terms

5、 of individual distribution component reliability. This is an extension of previously reported results. The value of the approach lies in distribution expansion planning in which a radial system may be networked with a v

6、iew to improve reliability. The effect of inserting Distributed Generation (DG) in the distribution system is studied in this paper. The result of this insertion may be that the number of outages increases because of the

7、 possible failure of the DG hardware. Two new indices for this application are proposed: the ratio of DG energy to interrupted energy and the ratio of DG operating duration to outage duration.Index Terms — distribution e

8、ngineering, reliability, SAIDI, SAIFI, repair time, distributed generation resources.I. ELECTRIC POWER DISTRIBUTION SYSTEM RELIABILITYReliability is a key issue in the design and operation of electric power distribution

9、systems – especially in view of sensitive digitally controlled loads. Contemporary loads are often digital in nature, and these loads are frequently sensitive to interruptions and, indeed, many other power quality proble

10、ms. The customers themselves are perhaps becoming more sensitive to interruptions due to the possibility of industrial manufacturing interruption, commercial loss of sales, and residential nuisance. Sophisticated control

11、 systems may 3minutes or hours in one year. The SAIFI gives information about how often these interruptions occur on the average for each customer. Both indices have been widely used in North America as measures of the e

12、ffectiveness of distribution systems [2, 16]. Note that in [9], the connection between the count indices is addressed – and this area is revisited in this paper. Both indices are carried out (i.e., averaged) typically ov

13、er a one year interval; SAIDI is usually expressed in hours; and SAIFI is unitless. There are many related indices of which the following are a sampling:CAIDI = Customer Average Interruption Duration IndexTypical central

14、 ranges of these indices in North American distribution systems are:SAIFI = 1.1 to 1.9SAIDI = 1.5 to 3.0 hASAI = 0.9996 to 0.9998 (i.e., roughly 3.5 to 4 ‘nines’)CAIDI = 0.9 to 2.6 h.Note that the ‘number of nines’, some

15、times denoted as N9, is related to a probability q as,N9 = -log(1-q). (1)There may be some circumstances for which the 8760 hour year might be replaced by some other figure, for example the number of hou

16、rs in a five day ‘work week’ over 52 weeks (namely 6240 h).In the case of the ASAI index, it may be convenient to express the index in terms of ‘the number of nines’, N9, that is 0.999 is N9 = 3 and 0.9999 is N9 = 4 for

17、example [17]. It should be mentioned that like many simple engineering indices, SAIDI and SAIFI attempt to capture many complex phenomena relating to power system reliability, and in distilling these phenomena into a sin