30! 11" #$%& Vol. 30No. 11 2006'6( PowerSystem Technology !"#$1000-3673%2006&11-0030-05 '()*#$TM744 +,-.$A /01.$470?4054 23456789:;PMU<=5>;?@ !"#$%"& ' !"#$%&'($)*!"+,-.250061/ ImprovementofOptimalPMUPlacementfor AnalyticalSolutionofPowerFlowNodebyNode XINGJie)HANXue-shan)WUPeng *School ofElectrical Engineering)ShandongUniversity)Jinan250061)ShandongProvince)China+ ABSTRACT: Amethodofplacingsynchronizedphasor measurementunits(PMUs)worktorealize concept ofdynamicincidence-degreeisputforward,andastatic optimalalgorithmandasemi-dynamicoptimalalgorithmfor PMUplacementbasedondynamicincidence-degreeare proposed. The performances of above-mentioned two paredwiththoseofexistingmethodsbycase methodsarefastandsimple,andtheamountofplacedPMUsby theproposedmethodsissmallerthanthatbyexistingmethods, so it issuit tosparse large-work. KEYWORDS: powersystem,powerflowcalculation,phasor measurement unit(PMU),dynamic incidence-degree AB$-./0#$1234567879:(PMU);<=> ?***@******@G)HI/JKLMNFOP)0QRS THI/RUJKLMN23PMUFVKWXYGZ[JK WXYG)\]^Y_`abc/******@******@GFi jklmno)******@Gq9rst)******@GDh uvwPMU23xy)z{U|}`~F !#$k CDE$#"#$,>?%Y,67879:(PMU),JK LMN 0 FG #"#$F>?***@A&'{;():*+, 7F-.i/******@A012)34Q125=/@ A0F6LMi)c7`89:/#"#$Fl; <=)>?@;EkyD)#"#$> ?***@AFEFCEGHIJ/YG)KLA>?@ EMNOP7BQRSk >?***@#Z
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