第5章电压暂降与短时间中断

200620060.530IEC901IEEE9010:X/R10%±2006z:IEC“”“1”IEEE“10”zzIEC3min3minzIEEE[IEEE.Std1159-1995]1min2006208080200690%~70%2006z100msz500800zz2006:112AB66171720061212312320062006()()()()rrkNfrN=∑()riN()()11kririkiiNNT===∑∑ir()rN()()()rtFtfr=∑20062006z20060·1/·km0·25/·km7510151121s7532545s1051s620062110·1220·256·6/11s21s5s3416·675%=5·0/26·610%=0·7/36·615%=1·0/20061A:80·250·150·3/2B:40·250·150·15/3C:70·250·150·26/4D:30·250·150·11/5:110·10·150·17/10·17/2A0·170·30·47/3B0·170·150·32/4C0·170·260·43/5D0·170·110·28/20061111··11//22AA33··11//33BB22··11//44CC22··99//55DD11··99//851/2~1/5.2006100·1s150·52006CBEMAITIC2080(CBEMA)ITICCBEMACBEMAITICCEMBAITICCBEMAITIC10687110%90,8·33ms20ms20069090I/O88802006ZFUsagZZFs=+PCCZFZsZzlF=sagszlUzlZ=+PCCPCCPCClz2006PCCUPCCX/RPCCz1scritZUlzU=×−critlZs2006PCCPCCPCCFFsagsZUZZ•=+sssZRjX+)FZrjxl+(l22cos1sin()11scritZUUUlzUUαα+−=×−+,,ssZjXzjxα+=+sRrzrjx=+-1-1ssXxa=tg()-tg()Rr([1(1cos)]1scritZUlUzUα=×−−−20061Z2ZPCCPCCPCC3Z4Z143134()()1critZUlZZzZZZU=−++−2Zzl=×U1421341341()()sagZZUZZZZZZZ=−++++41(1)34ZUUsagPCCZZ−=−[phone](1)()(1)sagppZUZZZpZZppZ−=+++−2Z1Z0Z2006zzz200620062006U1U1U2U2U0U0PCCPCCZs1Zs1Zs2Zs2Zs0Zs0Fs1Fs1Fs2Fs2Fs0Fs0I1I1I2I2I0I0EE2006a2006E=1p.u.PCC)()(021021002211sssFFFFsFsFZZZZZZZZZZZU+++++++++=)()(02102122sssFFFsZZZZZZZU+++++−=)()(02102100sssFFFsZZZZZZZU+++++−=2006PCC021UUUUa++=0212UUaUaUb++=0221UUaUaUc++=32121120jeaj+−==°321212402jeaj−−==°2006)()(1021021021sssFFFsssaZZZZZZZZZU+++++++−=)()(02102102122sssFFFsssbZZZZZZZaZZaaU+++++++−=)()(0210210221sssFFFssscZZZZZZZZaaZaU+++++++−=20061232006Zs1=Zs2+++++−−−=−)()(1)(021021212sssFFFsscbZZZZZZZZaaUU20061220061111201211()3saFFFsbcZUZZZZUaUa=−+++==200622Zs1=Zs2ZF1=ZF2011010201101001101021(2)(2)(2)(2)(2)(2)ssaFFssssbFFsssscFFssZZUZZZZZZUaZZZZZZUaZZZZ+=−+++−=−+++−=−+++2006=+++−+=′=+++−+=′+++−=+++++=′aZZZZZZUUaZZZZZZUUZZZZZZZZZZZUUssFFssccssFFssbbssFFsssFFssaa)2()2()2()2()2()2(31)2()2(20101102010110010110101102006PCC1112122212120()()()()0sssFFsssFFZUEEZZZZZUEZZZZU=−+++=+++=2006E=1p.u.+++−−=+++−−=+++−−=)()()()()()(1212122121212122212121FFsssscFFssssbFFssssaZZZZZaaZaUZZZZaZZaaUZZZZZZU2006bcabcZs1=Zs22211121111()22()22asbsFscsFUaaZUaZZaaZUaZZ=−=−+−=++2006bcPCC10022120020220()1()()ssFsFssFssFZZZZZUDZZZUDZZZUD+++=−+=+=))(())((2200220011FsFsFsFsFsZZZZZZZZZZD+++++++=2006Ua+−++−+=+−++−+=+−++−+=DZZaZZDZZaZZaaUDZZZaZDZZZaaZaUDZZZZDZZZZUFsssFssscFsssFsssbFsssFsssa))(())(())(())(())(())((122100012222120001222221000125-412006123200611z1aU13221322abcUUUjUj==−−=−+5-4720062bc113221322abcUUjUUjU==−−=−+32U5-502006U=050%13221322abcUUUUjUUj==−−=−+5-512006221Yy232006=1000100011T−−−−−−=211121112312T−−−=01110111033jT2006335-475-505-51+−=−−==23212321jUUjUUUUcba200650%ABCDAABBCCDD2006445-4121111111aFbsFFcsFUZUaZZZUaZZ==+=+2006E=1p.u.E=1p.u.U=U=PCCPCC+−=−−==UjUUUjUUUcba232123211111FFsZZZ+2006133236133236abcUUUUjjUUUjjU==−−−=−+++−−=−−−=+=UjUUUjUUUUcba23613123613131322006EFG2006CBDCFEAA2006GFEDCBAFGFCDCAY,d;D,y;Y,zGFGDCDAY,y;D,d;D,zGFEDCBAYN,yn2006ZSZM1MsMsagZZZU+=dNsSUZ2=SmSd2006——ZTmNMSUZβ2=mddsagSSSUβ+=MTsMTsagZZZZZU+++=2006u(t)∫+=TttRMSdttuTU00)(12T——∑−==102)(1NnRMSnuNUN——20060.5111“”2006(PLL)missingvoltagetechniquemissingvoltagetechnique)(tuPLL)(tusag)()()(tututmsagPLL−=)sin(2)(aPLLtUtuϕω−=)sin(2)(bsagsagtUtuϕω−=——PLLVrad;——VradUaϕsagUbϕ2006,)(tm)sin(2)(cctUtmϕω−=cUαcos222sagsagcUUUUU−+=abϕϕα−=cϕ−−=−bsagabsagacUUUUtgϕϕϕϕϕcoscossinsin1200620060.5p.u,0.83p.u.6002006dqdq1dq=cbaqduuuCuu+−−−−+−=)32cos()32cos(cos)32sin()32sin(sin32πωπωωπωπωωttttttCCasincosttωω2006dp+=−==)32sin(2)32sin(2sin2πωπωωtUutUutUucbaUud3=0=qudqddq2006abc-dp120aau∑++=thhahethUtUuβθωω)sin(2sin22006a60aucu−cabuuu−−=()32sin2sin()2sin()32sin()3hhtbhhthhuUtUtUhtehUhteβπβωπωωωθπωθ−=−+−−+++−∑∑∑−−+−−−=)3()3sin(2)3sin(2ωπβπθωπωthhchehthUtUu2006dqaubucu()311()311sin()sin()33sin()sin)333(hhhhttdhhhhtthhhhhuUeUehUUUeeπββωπββωππϕϕππϕϕ−−−−++=++−−++−−∑∑∑∑()311()3111sin()cos()3331sin()cos()333hhhhttqhhhhtthhhhhuUeUehUeUeπββωπββωππϕϕππϕϕ−−−−++=−+−−+−−+−∑∑∑∑,11(1)(1)hhhhhthtϕωθϕωθ−+=−+=++udhh1uq,dudud2006adqαsagU)sin(2αω+tUsagαdUαqUααcos3sagdUU=ααsin3sagqUU−=2233ααqdsagUUU+=+−=−=−−2211sin33sinαααααqdqsagqUUUUUαdUαqU2006dqLPFdqLPFsagUαcUcϕ200622“”PWMaarefuu−arefusagUαα200633220V50HzdqLPF2100HzButterworthPWM200630050%a)b)c)d)Usage)Usagf)g)Uc2006)sin()cos()(00tYtXtuωω−=)sin()(2)(0ttutudω×=)cos()(2)(0ttutuqω×=)sin()2cos()(00tXtYYtudωω++−=)sin()2cos()(00tYtXXtuqωω−+=YXduqu2/)(22YX+()1/tgYX−00sin()cos()ttωω20062006IEC61000-4-11:GB/T17626.11—1999GB/T17618-1998