Hierarchical Reliability Evaluation In An Electric Power System

Abstract

Facilities Abslract An clcctric power systciii is noriiially dividcd into gcncratiori, transinissioii arid distribution facili tics for thc purposcs of planning, organization, control, monitoring, operation, ctc. Tlicsc tliree functional zoncs can also bc used to quaiititativcly assess tlrc reliability of tlic system i n tcriiis of thc liicrarcliic:d lcvcls crcatcd b y progrcssivcly coinbiiiiiig tlic th rcc functiorial ZOIICS. This papcr discusses tlic rcliability iiidiccs wliicli can be calculntcd at tlic tlircc Iiicrnrcliical lcvcls and illustrates tlic coiiccpts i~ivolvcci by a iiunicrical study of a tcst systciii. Eiiipliasis is placcd 0x1 the coiitributioii to t h e actual custonicr rcliability made by tiic gcncration, transinissioii and distributioIi fuiictioriai zoncs.