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11d(3)2d(2)31dsdsdlZZEZZEI1)3(+=+=φφdsddlZZEII1)3()2(2323+==φIdZs.minZs.max2max..1.BdkdzIKI⋅=ΙΙ15(3.1~2.1pKk=ΙIdZΙ1.dzI312ablmaxlminlmin%100min×ll152050min.1max1.23dsdZlZZEI+=Ιφ)23(1%100max1.minsdZLZIEZll−⋅=×ΙφZL=Z1lt=0s3TQ60ms412ΙΠΠ⋅2.1.dZkdZIKI(2.1~1.1=ΠkKtttt∆=∆+=ΙΠ21Π=1.min.dZdBlmIIK1.31.5ΠΠΠ⋅2.1.dZkdZIKIttt∆+=ΠΠ21341211max.1.fkdZIKI⋅KZqmax.maxfZqZqIKI=max.maxfZqkZqkhIKKIKI⋅⋅=⋅=maxfhZqkhhdZIKKKKII⋅⋅=225.115.1kK3~3.1=ZqK85.0=hK22KhIdZKlm0.850.92d1144321ttttttt∆+43ttt∆+32ttt∆+2133.1min.11≥=dZdlmIIKId1.min2.1min.22≥=dZdlmIIKId2min34IdZIdZt121CTLJYLJ2CTLJYLJACIJI212==IIKJcon3IdZIdZ..J21IInl=ΘlJdZdZnII=∴.ldZJdZnII=.4a12100NPb2/3NP1/3a12b2/3Yd(2)Y11)2(ABd∆∆−=BAII..0.=∆CI∆==AcaIII...31∆−=AbII..32YCYAII..=YAYBII..2−=Y11LJlYBlYCYAnInII//)(...−=+51IdZt2IfId3t435KV110KVP11,1.,d1IdzIdzIII213d2IdzIdzIII312d123ttd232tt135246d1d2111dAdNAlZIU•=••212dNAlZIU•−=••11argdAdNAIUφφ==••ο180arg21+==••dAdNAIUφφοο900φοο270180φ0cos=φAAIUP0cos=φAAIUP1UJIJlmφ2ο90±lmφοο90arg90≤≤−•−•JjJIeUlmφlmJJlmIUφφ+≤≤+−••οο90arg903:,60,,1ο===••••dAJAJIIUUφο601==dlmφφ40≈=AJUUGJ90BAUU••≥οο90arg90≤≤−••DCUUο90arg••DCUUο90arg=••DCUUο90arg••DCUUBAUU••BAUU••=BAUU••⎪⎩⎪⎨⎧+=+=••••••DCBDCAUUUUUU⎪⎩⎪⎨⎧+=+=••••••)()(2121BADBACUUUUUU1DCBAUUUU••••,,,2ο90±LG111JIJUAIKUKU•••+=JIJUBIKUKU•••−=aAiU→•bBiU→•0≥−baiiοο90arg90≤≤−⇔≥+⇒≥••••••••JIJUJIJUJIJUBAIKUKIKUKIKUKUU3οο6045:=IIKφ)C(90:1ο=UUKφο30=−=Iuφφααα−≤≤−−••90arg90JJIUοο30−=−=αφlm40UUUBA≥−••0≈JUººº±º0=JU0=JIJUJIJUJIGJGJR1R21290ºcos=1ο90arg=••JJUI90º4023790º90º1)90cos(=+−αφοddφα−=∴ο90οο900dφο0=dφοο1800αο90=dφοο9090−αsdZZ0=•AIο90−=dJBφφο90−=dJCφφGJοο900αοο900dφBCBCCAU•ABU•sdZZ0=•AIBGJο120−=dJBφφοο12030αCGJο60−=dJCφφοο6030−α)2(dBGJ009030αCGJ00600αP4322)2(ABd)2(CAdGJ00900dϕ006030αLG11045=α030)3(dGJ1max21dzIKIdzIdzIKII==max21dIKIdzIKI=max12dIKIdzIKI=12'BCABII≠==ABBCfzIIK'fzIdzIIKIIdzKIKI21=ABBCII'1fzKABBCII'1fzKABBCII='1=fzK111234GJ)3(d21dzdzII1d11dzdII1GJ2GJ2d22dzdII1d132ttt=23GJ2d3GJ32tt=1GJ21ttGJGJP171P144P184:3/10≤XX,,,.110KV60KV(),,d(1)70%d(1),,..():U0,,U0.U0=0()::()(U0).:,()0dI0argdU••=ϕB10'00ZI•−=••MUZB10:(13I0maxmax0IKdz0I3KI⋅Ι1.21.3IKK3I0maxX1X2ΣΣ+×=01)1(0233ZZEIφ()ΣΣΦΣΣΣΣΣΣΣΣΦ+×=+×+⋅+×=0102202021)1.1(02333ZZEZZZZZZZZEIZ0Z1Z0Z1Z0=Z1ΣΣ••ΣΣΣΣΣΣΣΣ••+×=+×+⋅+×=01NM02202021NMbt02EE3EE33ZZZZZZZZZZIΣΣ••+×=01NMbt02EE33ZZI20.1s15%20%()Kmin22010/fIdzIIKIIdzKIKI⋅=K1.102015.0=∆=∆+=ttttIII5.130min0≥=IdzlmIIKIbp.maxmax.bpIIIKIIIdz0I.KI=)3(maxmax.dertxfzqbpIKKKI⋅⋅⋅=fzqKt0s1.52t=0.5s1txK0.51erKCT0.1)3(maxdIP5525510do0180IUargϕϕd070o80o03••=UUJ••=03IIJlm70o85o:03••=UUJ••=03IIJ5.1min≥=dzlmSSK2GT03I0P221P2556