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l(f)ڣ[2006-4-13]    [4990]ΡЇ늚ЈُW(wng)[EM39.com]{(bio)pԄӝL}
      1 ǰ

S(jng)(j)IJl(f)չԽԽ׃S֮늉l(f)չ؄eĿǰ{̵ĽO(sh)Ҫa(chn)늉׃Ŀǰѽ(jng)Ƴ1000MVAϵľ׃ԇƷ1800MVA҇׃_Ҳ_(d)720MVA

S׃_͉@MҲS֮еĸ_(d)fڴ׃͉@MʽY(ji)(gu)@ڵ͉@MЄݱشһSԓS͉@MӋ׃©żpĕr]_(d)һ̶ټӋď(f)syԣ˺S©ňӰJ(rn)@MľѶͬSAh(hun)·H׃@MÌ(do)һѾoһ@ƶɵÿѾԡ؄eʽ@MSԽԽ@һЩ׃ҌǷ(yng)ԓԵӰ푣Ɇ؄enjش׃ԓӰ푣ܷʹ׃FļY(ji)(gu)a(chn)ֲ^˸@Щ}бҪ@һa(chn)©ňM(jn)Ԕ(x)ìF(xin)늴ňӋ㼼g(sh)_Ӌ]@һ׃©ňķֲԼɴˮa(chn)ēpģ@_l(f)®a(chn)Ʒrȡʩa(chn)ؓ(f)Ч(yng)ָ(do)a(chn)ƷO(sh)Ӌ

@M׃Юa(chn)ňĸԴ@MΠ׃wY(ji)(gu)̎λֱӰ׃©ŷֲ׃߉@MһÃ(ni)Bm(x)ʽ͉@MʽBm(x)ʽ@MɺܶS“(lin)M@ƕrݗ“(lin)@ƳһȻáD(zhun)^棬ĩ^Qλ(jng)Qλ@ڶBm(x)ʽ@MÿһжѾc֮gÉ|K_ʽ@Mɶ⌧(do)“(lin)B@ɵgÉ|K_(j)@MĴС@MɲÆp34ȽY(ji)(gu)ʽ@MÿЎׂǎÿ@M(sh)Խ@MԽ?nʽ@MǴ(n-1)?

ڲ鿴P(gun)׃©ӋīI(xin)rl(f)F(xin)SīI(xin)]п]׃@Mdž}е@MͬSAh(hun)·O(sh)@MgПoޱĽ^оѾoܵ@Mռȫg@MڏSp@ؽֲH׃@Mñ⌧(do)һѰһ@ƶɵÿ֮gԣÿcˮƽgAһ̶(sh)ֵĽǶԲHЈAܷ߀S

´ڞg[DƬ

؄eǶʽ@MԸ@׃͉@Mһ34@Ʒʽе׃{(dio)@M߀8ҪӋʽ@MSӰ횰׃@MČHΠ׺ģ

Ҫᘌ׃ʽ@MIJͬȆ}׃©ňM(jn)Ӌ(j)ӋY(ji)^˲ͬ@MS׃©ňӰ푳̶

2 ģx

ʽ@MS}wͬrǰҾQoQ̎ڽģ͕r횿]׃ȫ׃͉ʽ@Mһ㶼100ҵľgɢ͵g͵ǃɷNͬIJM(jn)зքeʷ֡HrģʷֵϢஔ(dng)ټ߉@MFAȘ(gu)F(xin)еӋYԴoM(jn)ʷ֣f©ňӋ׃HY(ji)(gu)M(jn)һĺ̎

ڶ@Mÿ@Mһw@w@cHrȫһ¡һ_240MVAĆ׃Ӌ㌍ԓ_׃͉@Mõ4ʽY(ji)(gu)߉@Mõǃ(ni)Bm(x)ʽY(ji)(gu)˽ģ͕r˹(ji)ʡӋYԴ߉@MͬSAh(hun)͉̎@MͬȺ͟orģܵ͡F(xin)ӋYԴֻӋ˵͉@M32168oķNr׃©ňķֲ˸N@MS©ňӰڵ͉@M4r׃©ňӋĿǰӋYԴ߀oF(xin)^ɸ(j)ķNrӋY(ji)Եط͉@M4rS©ňӰ

SuӋҪӋYԴ(j)ԓ}c(din)Ҫоʽ@MS׃©ňӰӋr¼O(sh)

(1)Fă(ni)u©ňӰJ(rn)=0

(2)ٽY(ji)(gu)AIJϞ龀ԡ

(3)λ

(4)Ըߵ͉@M(ni)h(hun)u©ňӰ

(5)Ӌ·r׃©ŷֲJ(rn)һ@M֮͞㡣

3 c(din)

3.1 Üu׃ʽ@M}

đ(yng)Ansoftl늴ňӋܛĜu׃ʽ@M}uӋԭǑ(yng)늴ň̼Maxwell

ڹlrλӰMaxwell£

´ڞg[DƬ

3.2 ׃ñ迹

(dng)׃늴ňM(jn)͌(do)w͸СrݶȌa(chn)׃@Nr£ƵJ(rn)ڌ(do)w(ni)ֻSر淨ݶ׃ʹ(do)(ni)ɞһSⲿĈһЧ迹@Ӿʹ(do)w^(q)ֻڱԪ

˃(ni)(ji)c(din)迹ɶx飺

´ڞg[DƬ

ñ迹횝MЗl

(1)(do)wļwh(yun)h(yun)СĽY(ji)(gu)ߴ

(2)ڌ(do)w(ni)ňر淨˥pо˥pö

(3)Դh(yun)xua(chn)ı

׃һxA3(j)wӋ㹫ʽ

´ڞg[DƬ

ʽЦԴĽlrad/s

Ҳϵ늌(do)ʣS/m

rϵŌ(do)

0еĴŌ(do)H/m

A3䓣=5.6×106S/mr=200ʽ(5)ɵļwȦ=1.5mmh(yun)СĽY(ji)(gu)ߴ˿Ɍ(ni)迹߅ڽģ͕r䱾^(q)(ni)ă(ni)߅@ӿɱ(ni)ʷּɹ(ji)sӋYԴ

4 ͬʽ@M׃©ňֲӋY(ji)

4.1 ʽ@MSFС©ňӰ

Nʽ@MSFС©ňӰҊD1ɈD1Կͬʽ@MSFСݗᵽݗSָ׃͉(c)@Mλ©ŷֲڅͬ@Mɶݗ©^󣬶@Mв©^С֮ͬ̎Ǹͬʽ@M©ŷֵͬԽ@M@Mɶ˵ķֵ^ֵ׃^o@M@Mɶ˵ķֵ^x_@Mɶλô½^@Mв^׃rԽ@M׃ҲԽ죬or׃^ĈD΁co32@MSFС©ňӰ^16@M֮8@MӰ^С4lķֲP(gun)ϵɶԵД(dng)?sh)͉@M4rFСݗ©ŷֲ(yng)Bxm0cBxm8֮gˣJ(rn)鮔(dng)?sh)͉@M4rSFС©ňӰ푺СԺԲӋ

´ڞg[DƬ

4.2 ʽ@MS©ňӰ

Nʽ@MS©ňӰD2ʾЈD2a鲻ͬȵ͉@M׃ݗ߶ȵķֲɈD2Կͬ@Mݗ©ŷֲڅͬ@Mɶ˴@Mв©ͨ^Ҹ׃©ŷ4lľwֲDzͬģֲҎ(gu)ɞSʽ@Mǵ©ֵF(xin)λ@MвƫƣֵҲ(yng)©c(din)ͨ^c(din)^@M׃ݶ^or׃ݶСͨ^D2a4lı^Կ32ʽ@MS©ňӰ16֮8coɗl^ӽ˿ɶԵД(dng)?sh)͉@M4rݗ©ŷֲ(yng)Bxm0cBxm8֮g˿J(rn)鮔(dng)?sh)͉@M4rS©ňӰ푺СԺԲӋD2b߶ȵķֲɈDԿڟorܺСS͉@Mǵ@Mɶ˵ԽԽ󣬵cݗһ(sh)D2cS߶ȵķֲ

´ڞg[DƬ

4.3 Nʽ@MS͉@M©ňӰ

Nʽ@MS͉@M©ňӰҊD3ЈD3a鲻ͬȵ͉@Mݗ@M߶ȵķֲɈDԿͬʽ@Mڵ͉ݗ©ŷֲ@Mɶ˴^@Mв©ͨ^Ҹ׃©ŷֲҎ(gu)ɞSʽ@Mǵ©ֵ(yng)©ͨ^c(din)^@M׃ݶ^or׃ݶСˣͨ^D2a4lı^Կ32ʽ@MS͉@M©ňӰ16֮8coɗl^ӽӰС˿ɶԵД(dng)?sh)͉@M4r͉@Mݗ©ŷֲ(yng)Bxm0cBxm8֮gM(jn)J(rn)鮔(dng)?sh)͉@M4rS͉@M©ňӰ푺СԺԲӋD3b͉@M@M߶ȵķֲɈDԿڟor͉@M(ni)ܺСS͉@Mǵ@Mɶ˵ԽԽ@MвҲ؄e32ʽ@M@Mɶ˼в^D3c͉@MS@M߶ȵķֲ4lķֲڅͬ@Mв@Mɶ˴½

´ڞg[DƬ

4.4 Nȵʽ@MS߉@M(ni)©ňӰ

Nʽ@MS߉@M(ni)©ňӰҊD4ЈD4a鲻ͬȵ͉@M׃߉@M(ni)ݗ@M߶ȵķֲD4b߉@M(ni)@M߶ȵķֲɈDԿڟor߉@M(ni) СS͉@Mǵ@Mɶ˵ԽԽ@MвҲֲҎ(gu)c͉@Mܵķֲơ@f@MSһӰ؄e@MăɶӰҪһЩD4c߉@M(ni)S@M߶ȵķֲ4l@Mв^@Mɶ^С

´ڞg[DƬ
´ڞg[DƬ

4.5 ͬȵʽ@MڊA©ŷֲcԇY(ji)ı^

D5ķNʽ@M׃ڊAݗ©ŷֲԓ̎ČyֵķֲɈD5ԿķNrڅһµڊA¶ݗ©^A϶©upС¶32©0С϶32⣬©^Сұ^ӽ@@MSA¶Ӱ^A϶˻]ӰSǵӰҲyֵڟoc8֮g@ڌHa(chn)Ʒ4ʽ@M@ҲC˱ՓĵӋģǿŵ

´ڞg[DƬ

5 Y(ji)Փ?

ĸ(j)ķNʽY(ji)(gu)32168͟or׃©ňӋ

Y(ji)ɵó½Y(ji)Փ?

(1)ͬ@M׃Fļݗ©ŷֲڅһµ@

Mɶݗ©^@Mв©^С֮ͬ̎Ǹͬʽ@M©ŷֵͬԽ@M@Mɶ˵ķֵ^ֵ׃^o@M@Mɶ˵ķֵ^⣬x_@Mɶλô½^@Mв^׃rԽ@M׃ҲԽ죬or׃^

(2)Sʽ@Mǵڵ͉@Mă(ni)ݗ©ֵ(yng)

©^c(din)^@M׃ݶ^or׃

ݶڵ͉@M漰߉@M(ni)©ҲSǵSʽ@Mǵڸ̎S©ŷ΢׃@ҪSʽ@Mǵ@MpС

(3)H׃ȡ4ʽY(ji)(gu)©ŵӰ푑(yng)08֮gе©ŷֲĹ̵ĽǶȳl(f)J(rn)Ӱ푲ܴ

Դ׃

dֻfϢվ^c(din)CϢHD(zhun)dՈע̎




һƪʲô^
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