From 2ad26b0a31573b560d2dbad9307c4ae45da981c6 Mon Sep 17 00:00:00 2001 From: "dmy@lab" Date: Fri, 18 Sep 2015 13:16:16 +0800 Subject: [PATCH] =?UTF-8?q?=E6=8C=89=E3=80=8A=E5=90=8C=E6=9D=86=E5=B9=B6?= =?UTF-8?q?=E6=9E=B6=E5=A4=9A=E5=9B=9E=E7=BA=BF=E4=B8=8B=E6=96=B9=E7=9A=84?= =?UTF-8?q?=E7=94=B5=E5=9C=BA=E5=BC=BA=E5=BA=A6=E5=92=8C=E6=84=9F=E5=BA=94?= =?UTF-8?q?=E7=94=B5=E5=8E=8B=E3=80=8B=20=E5=81=9A=EF=BC=8C=E6=83=B3?= =?UTF-8?q?=E5=92=8C=E2=80=9C=E8=AE=BE=E8=AE=A1=E6=89=8B=E5=86=8C=E2=80=9D?= =?UTF-8?q?=E4=BE=8B=E9=A2=982-1=E6=AF=94=E8=BE=83=EF=BC=8C=E5=81=9A?= =?UTF-8?q?=E4=BA=86=E4=B8=80=E5=8D=8A=E6=B2=A1=E6=9C=89=E7=BB=A7=E7=BB=AD?= =?UTF-8?q?=E4=B8=8B=E5=8E=BB=E3=80=82?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: dmy@lab --- Field.m | 69 +++++++++++++++++++++++---------------------------------- 1 file changed, 28 insertions(+), 41 deletions(-) diff --git a/Field.m b/Field.m index b2b253c..4c0737c 100644 --- a/Field.m +++ b/Field.m @@ -4,48 +4,35 @@ %% clc clear -%电压（复数，至上到下，先左后右） -%双回 -Volt=[220; 220*exp(1j*240*pi/180); 220*exp(1j*120*pi/180);220; 220*exp(1j*240*pi/180); 220*exp(1j*120*pi/180) ]; +%坐标,单回 +ConductorX=[-9,0,9]; +ConductorY=[14.5,14.5,14.5]; +%计算H，导线距地面的高度 +H=diag(ConductorY); +r=0.03/2*eye(length(ConductorX));%导线自几何均距 +MirrorConductorX=[-9,0,9]; +MirrorConductorY=-[14.5,14.5,14.5]; +%电压（复数，先左后右） +%单回 +Volt=[525; 525*exp(1j*240*pi/180); 525*exp(1j*120*pi/180);]; %形成电位系数矩阵 -H=diag([28.5, 21, 27.5, 28.5, 21, 27.5 ]); -r=diag([0.2,0.2,0.2,0.2,0.2,0.2]); -Dcomma=[0,58.5,55,62.42,58.98,55.5; - 58.5,0,51.5,58.98,55.5,52.1; - 55, 51.5 0,55.5,52.1 48.7; - 62.42,58.98,55.55,0,58.5,55; - 58.98,55.55,52.13,58.5,0,51.5; - 55.55,52.13,48.73,55,51.5,0]; -D=[ 0 3.51 7.02 7.2 8.27 10.4; - 3.51 0 3.51 8.27 7.8 8.8 - 7.02 3.51 0 10.4 8.8 8.4 - 7.2 8.27 10.48 0 3.5 7.02 - 8.27 7.8 8.8 3.51 0 3.51 - 10.4 8.8 8.4 7.02 3.51 0]; +%导线与镜像的距离 +cplxConductorXY=ConductorX+1j*ConductorY; +cplxMirrorConductorXY=MirrorConductorX+1j*MirrorConductorY; +matCplxConductorXY=repmat(cplxConductorXY,length(ConductorX),1); +matCplxMirrorConductorXY=repmat(conj(cplxMirrorConductorXY'),1,length(ConductorX)); +conductor2MirrorDistance=abs(matCplxConductorXY-matCplxMirrorConductorXY); +conductor2MirrorDistance=conductor2MirrorDistance-diag(diag(conductor2MirrorDistance)); +%导线与导线的距离 +conductor2conductorDistance=matCplxConductorXY-conj(matCplxConductorXY'); +conductor2conductorDistance=conductor2conductorDistance-diag(diag(conductor2conductorDistance)); +%计算电位系数 eslong=1; -P=1/pi/eslong*log(2*H./r); -P(isnan(P))=0; -P2=1/pi/eslong*log(Dcomma./D); +P1=1/pi/eslong*log(2*H./r); +P1(isnan(P1))=0; +P2=1/pi/eslong*log(conductor2MirrorDistance./conductor2conductorDistance); P2(isnan(P2))=0; -P=P+P2; +P=P1+P2; %求电荷 -QRI=inv(P2)*Volt; -%导线坐标 -ABCx=[-3.6; -3.9; -4.2; 3.6; 3.9; 4.2]; -ABCy=[31; 27.5; 24; 31; 27.5; 24]; -%求地面场强 -plotY=zeros(60,1); -plotX=zeros(60,1); -for I=-30:30 - x=I; - y=0; - ERy=sum( (ABCy-y)./( (ABCy-y).^2+(ABCx-x).^2 ).*real(QRI)./2/pi/eslong ); - EIy=sum( (ABCy-y)./( (ABCy-y).^2+(ABCx-x).^2 ).*imag(QRI)./2/pi/eslong ); - - ERx=sum( (ABCx-x)./( (ABCy-y).^2+(ABCx-x).^2 ).*real(QRI)./2/pi/eslong ); - EIx=sum( (ABCx-x)./( (ABCy-y).^2+(ABCx-x).^2 ).*imag(QRI)./2/pi/eslong ); - E=sqrt(ERy.^2+EIy.^2+ERx.^2+EIx.^2); - plotY(I+31)=E; - plotX(I+31)=x; -end -plot(plotX,plotY); \ No newline at end of file +QRI=P\Volt; +%求电场强度