高电压技术 线路上波过程

1、 波波的的折折射射和和反反射射4、彼彼德德逊逊法法则则（集集中中参参数数等等值值电电路）路）5、波波经经过过电电容容和和电电感感6、波波的的多多次次折折反反射射7、波波在在平平行行多多导导线线系系统统中中的的传传播播（耦耦合合系系数）数）8、冲冲击击电电晕晕对对波波过过程程的的影影响响6000Km15Km50Km波阻抗 00ZCLiu20202121uvCivLtuCxitiLxu00dxxiitudxCidxxuutidxLu0022222002222222002211tivtiCLxituvtuCLxu),(),(),(),(pxItxipxUtxu),(),(),(),(20022200

2、22pxIpCLdxpxIdpxUpCLdxpxUdxpbxpfxpbxpfepIepIpxIepUepUpxU)()(),()()(),( )()(pFtf)()(tfepFp)()(),()()(),(fqfqxtixtitxixtuxtutxu)()(),()()(),(fqfqtxitxitxitxutxutxu001CLv smCLv/10*31180000无损线fquuu fqiii )vtx(uq )vtx(uf 0)(0)(vtxdtdvtxdtdvdtdxvdtdxUaUaZ1Z212u1qAZ1Z212u1qAu1fu2qZ1Z212u1qAZ1Z212u1qAu1fu2q

3、00/CLZiuff00/CLZiuqqZuuuuZiiuuiufqfqfqfqqfquuu211qUqqUqqUUZZZZuUUZZZu112112f11121222Z1Z212u1qAZ1Z212u1qAu1fu2quuq1uq1uq11UUU 当Z1Z2时，U1f0, U2qU1qZ1Z212u1qAZ1Z212u1qAu1fu2q当Z10, U2qU1q Z1u1q=EAu1f=EZ1i1q=E/Z1Ai1f=-E/Z1U1q=EA Z1u1q=EAu1f=-EZ1i1q=E/Z1Ai1f=E/Z1U1q=EA AZ1u1q=EAR=Z1Z1i1q=E/Z1R=Z1Z1u1q=EAR=

4、Z1ABUqUqUfatatatatatatatUq=atUf=a(t-2) =L/v L斜角波传播过程 )()()()()(q2f1q1q2f1q1titititututuZtutiZtuti/ )()(,/ )()(f1f1q1q1)()()(2q21q2q1tiZtutu qUqqUzzzUtU122112*2Z2Z1Z2u1q(t)Ai2u2u2q(t)Z1i2q2u1q(t)Z2U2q(p)Z1I2q(p)2U1q(p)n-1n-1条出线u0zz母线母线U0zzzznUzznzUznzzUnzU0002212*1母线折射系数：n25. )1(111/1/2)(2122ccqTppTE

5、pCZZpCZpEpUZ1Z212u1q=EACZ2U2q(p)Z1I2q(p)2E/p1/pCAZ1Z2u1q=EACu2qu1f)1 ()(/q2TteEtuTtEeZZZEZZZZu/2121212f12)1(112)(2122LLqTppTEpLZZZpEpUZ2U2q(p)Z1I2q(p)2E/pZ1Z212u1q=EALu2qu1fpLAZ1Z2u1q=EAL)1 ()(/q2TteEtuTtEeZZZEZZZZu/2121212f12)1 ()(/q2TteEtuCZEdtdut10q22LEZdtdut20q22TtEeZZZEZZZZu/2121212f12 u (t )12

6、 1 2u (t )1u (t )1u (t -)12u (t -)1 2u (t -)1 2u (t - 2)1 1 2u (t - 2)1 1 2u (t - 3)12 1 2u (t - 3)1 1 22u (t - 3)1 1 22u (t - 4)1 12 22u (t - 4)1 12 22u (t - 5)12 12 22u (t - 5)Z0,) 1(2)()5()()3()()(212121222121221212212ntututututun212121121221212121)(1)()(1 nnEEU t0)(21nEEZZZU1221222 nnnnnnnnnnqPqPqPuqPqPqPuqPqPqPu22112222121212121111 kmkmkmkkkkkDHPrHPln21ln2100PQU Ziu kkivqkkkkkkkrHvpZln2100 kmkmkmkmDHvp