diff --git a/@SEOpti/SEOpti.m b/@SEOpti/SEOpti.m
index d28e6d5..1963266 100644
--- a/@SEOpti/SEOpti.m
+++ b/@SEOpti/SEOpti.m
@@ -25,6 +25,10 @@ classdef SEOpti
         transI=NaN;
         transJ=NaN;
         newwordParameter=NaN;
+        BalanceVolt=NaN;
+        %真实值
+        rVolt=NaN;
+        rVAngel
     end
     
     methods
diff --git a/@SEOpti/equ.m b/@SEOpti/equ.m
index 3e286bb..3b5d007 100644
--- a/@SEOpti/equ.m
+++ b/@SEOpti/equ.m
@@ -11,7 +11,9 @@ PQ=diag(cmpSEV)*conj(this.cmpY*cmpSEV);
 out_arg=[real(PQ(this.zerosInjectionIndex));imag(PQ(this.zerosInjectionIndex));];
 % out_arg=[PQ1(this.zerosInjectionIndex);PQ2(this.zerosInjectionIndex);];
 % out_arg=[out_arg;x(this.Balance+this.Busnum)];
-out_arg=[out_arg;x(this.Balance+this.Busnum)];
+out_arg=[out_arg;x(this.Balance+this.Busnum)];%相角等于0
+BalanceVolt=this.BalanceVolt;
+out_arg=[out_arg;SEVolt(this.Balance)-BalanceVolt];%平衡节点电压
 out_arg=full(out_arg);
 this.mnle=zeros(length(out_arg),1);
 this.mnlrhs=this.mnle;
diff --git a/@SEOpti/fun.asv b/@SEOpti/fun.asv
index e3682ed..c41e226 100644
--- a/@SEOpti/fun.asv
+++ b/@SEOpti/fun.asv
@@ -4,28 +4,43 @@ function [ Objective ] = fun(this, x )
 Objective=0;
 SEVolt=x(1:this.Busnum);
 SEVAngel=x(this.Busnum+1:2*this.Busnum);
-Objective=sum(((SEVolt-this.mVolt)./this.sigma).^2);%电压
+rVolt=this.rVolt;
+sigma=this.sigma;
+VoltSigma=rVolt*sigma;
+Objective=sum(((SEVolt-this.mVolt)./VoltSigma).^2);%电压
 %% 支路电流
 cmpSEV=SEVolt.*exp(1j*SEVAngel); %复数电压
 cmpSEBranchI=(cmpSEV(this.lineI)-cmpSEV(this.lineJ))./(this.lineR+1j*this.lineX);%复数支路电流
 SEBranchI=abs(cmpSEBranchI);% 支路电流幅值
-Objective=Objective+sum((SEBranchI-this.mBranchI.^2).^2./this.sigma^2);%%电流
+% (SEBranchI-this.mBranchI).^2./(this.sigma^2)
+% Objective=Objective+sum((SEBranchI-this.mBranchI).^2./(this.sigma^2));%%电流
 %% 线路功率
+rVAngel=this.rVAngel;
+cmpV=rVolt.*exp(1j*rVAngel);
+rBranchPQ=(cmpV(this.lineI)-cmpV(this.lineJ)).*conj( (cmpV(this.lineI)-cmpV(this.lineJ))./(this.lineR+1j*this.lineX) );
+SEBranchPSigma=real(rBranchPQ)*sigma;
+indBranchPS=find(SEBranchPSigma>1e-5);
+SEBranchPSigma=SEBranchPSigma(indBranchPS);
+SEBranchQSigma=imag(rBranchPQ)*sigma;
+indBranchPS=find(SEBranchPSigma>1e-5);
+SEBranchQSigma=SEBranchQSigma(abs(SEBranchQSigma)>1e-5);
 SEBranchP=real((cmpSEV(this.lineI)-cmpSEV(this.lineJ)).*conj(cmpSEBranchI));
 SEBranchQ=imag((cmpSEV(this.lineI)-cmpSEV(this.lineJ)).*conj(cmpSEBranchI));
-Objective=Objective+sum((SEBranchP-this.mBranchP).^2/this.sigma^2);
-Objective=Objective+sum((SEBranchQ-this.mBranchQ).^2/this.sigma^2);
+Objective=Objective+sum((SEBranchP-this.mBranchP).^2./(SEBranchPSigma.^2));
+% Objective=Objective+sum((SEBranchQ-this.mBranchQ).^2./(SEBranchQSigma.^2));
+
+
 %% 变压器
 newwordParameter=this.newwordParameter;
 cmpY=this.cmpY;
 transP=TransPower( newwordParameter,cmpY,SEVolt,SEVAngel );
-Objective=Objective+sum((transP-this.mTransP).^2/this.sigma^2);
+Objective=Objective+sum((transP-this.mTransP).^2/(this.sigma^2));
 transQ=TransReactivePower( newwordParameter,cmpY,SEVolt,SEVAngel );
-Objective=Objective+sum((transQ-this.mTransQ).^2/this.sigma^2);
+Objective=Objective+sum((transQ-this.mTransQ).^2/(this.sigma^2));
 %% 0注入节点
 PQ=diag(cmpSEV)*conj(this.cmpY*cmpSEV);
 %% 发电机注入功率
-Objective=Objective+(this.mPG(this.onlyPG)-real(PQ(this.onlyPG)))/this.sigmas.onlyPG)-real(PQ(this.onlyPG)));
-% Objective=Objective+(this.mQG(this.onlyQG)-imag(PQ(this.onlyQG)))'*(1./this.sigma^2*eye(length(this.mQG(this.onlyQG))))*(this.mQG(this.onlyQG)-imag(PQ(this.onlyQG)));
+% Objective=Objective+sum(((this.mPG(this.onlyPG)-real(PQ(this.onlyPG)))/this.sigma).^2);
+% Objective=Objective+sum(((this.mQG(this.onlyQG)-imag(PQ(this.onlyQG)))./this.sigma).^2);
 end
 
diff --git a/@SEOpti/fun.m b/@SEOpti/fun.m
index ebe5058..9422f88 100644
--- a/@SEOpti/fun.m
+++ b/@SEOpti/fun.m
@@ -4,26 +4,39 @@ function [ Objective ] = fun(this, x )
 Objective=0;
 SEVolt=x(1:this.Busnum);
 SEVAngel=x(this.Busnum+1:2*this.Busnum);
-Objective=sum(((SEVolt-this.mVolt)./this.sigma).^2);%电压
+rVolt=this.rVolt;
+sigma=this.sigma;
+VoltSigma=rVolt*sigma;
+Objective=sum(((SEVolt-this.mVolt)./VoltSigma).^2);%电压
 %% 支路电流
 cmpSEV=SEVolt.*exp(1j*SEVAngel); %复数电压
 cmpSEBranchI=(cmpSEV(this.lineI)-cmpSEV(this.lineJ))./(this.lineR+1j*this.lineX);%复数支路电流
 SEBranchI=abs(cmpSEBranchI);% 支路电流幅值
 % (SEBranchI-this.mBranchI).^2./(this.sigma^2)
-Objective=Objective+sum((SEBranchI-this.mBranchI).^2./(this.sigma^2));%%电流
+% Objective=Objective+sum((SEBranchI-this.mBranchI).^2./(this.sigma^2));%%电流
 %% 线路功率
+rVAngel=this.rVAngel;
+cmpV=rVolt.*exp(1j*rVAngel);
+rBranchPQ=(cmpV(this.lineI)-cmpV(this.lineJ)).*conj( (cmpV(this.lineI)-cmpV(this.lineJ))./(this.lineR+1j*this.lineX) );
+SEBranchPSigma=real(rBranchPQ)*sigma;
+indBranchPS=find(real(rBranchPQ)>1e-5);%不考虑太小的数据，以免权重太大。例如除以0
+SEBranchPSigma=SEBranchPSigma(indBranchPS);
+SEBranchQSigma=imag(rBranchPQ)*sigma;
+indBranchQS=find(imag(rBranchPQ)>1e-5);%不考虑太小的数据，以免权重太大。例如除以0
+SEBranchQSigma=SEBranchQSigma(indBranchQS);
 SEBranchP=real((cmpSEV(this.lineI)-cmpSEV(this.lineJ)).*conj(cmpSEBranchI));
+SEBranchP=SEBranchP(indBranchPS);
 SEBranchQ=imag((cmpSEV(this.lineI)-cmpSEV(this.lineJ)).*conj(cmpSEBranchI));
-% (SEBranchP-this.mBranchP).^2/(this.sigma^2)./(this.mBranchP.^2);
-Objective=Objective+sum((SEBranchP-this.mBranchP).^2/(this.sigma^2));
-Objective=Objective+sum((SEBranchQ-this.mBranchQ).^2/(this.sigma^2));
+SEBranchQ=SEBranchQ(indBranchQS);
+Objective=Objective+sum((SEBranchP-this.mBranchP).^2./(SEBranchPSigma.^2));
+Objective=Objective+sum((SEBranchQ-this.mBranchQ).^2./(SEBranchQSigma.^2));
 %% 变压器
 newwordParameter=this.newwordParameter;
 cmpY=this.cmpY;
 transP=TransPower( newwordParameter,cmpY,SEVolt,SEVAngel );
 Objective=Objective+sum((transP-this.mTransP).^2/(this.sigma^2));
 transQ=TransReactivePower( newwordParameter,cmpY,SEVolt,SEVAngel );
-Objective=Objective+sum((transQ-this.mTransQ).^2/(this.sigma^2));
+% Objective=Objective+sum((transQ-this.mTransQ).^2/(this.sigma^2));
 %% 0注入节点
 PQ=diag(cmpSEV)*conj(this.cmpY*cmpSEV);
 %% 发电机注入功率
diff --git a/@SEOpti/init.m b/@SEOpti/init.m
index 6b7f752..87a38d1 100644
--- a/@SEOpti/init.m
+++ b/@SEOpti/init.m
@@ -1,4 +1,4 @@
-function [ this ] = init(this,Busnum, mVolt,sigma,newwordParameter,zerosInjectionIndex,cmpY,onlyPG,onlyQG,mPG,mQG,Balance,mBranchI,mBranchP,mBranchQ,mTransP,mTransQ)
+function [ this ] = init(this,Busnum, mVolt,sigma,newwordParameter,zerosInjectionIndex,cmpY,onlyPG,onlyQG,mPG,mQG,Balance,mBranchI,mBranchP,mBranchQ,mTransP,mTransQ,BalanceVolt,rVolt,rVAngel)
 %INIT Summary of this function goes here
 %   Detailed explanation goes here
     this.mVolt=mVolt;
@@ -22,7 +22,10 @@ function [ this ] = init(this,Busnum, mVolt,sigma,newwordParameter,zerosInjectio
     this.mTransP=mTransP;
     this.mTransQ=mTransQ;
     this.newwordParameter=newwordParameter;
-    
+    this.BalanceVolt=BalanceVolt;
+    %真实值
+    this.rVolt=rVolt;
+    this.rVAngel=rVAngel;
 %     this.Y=Y;
 %     this.Yangle=Yangle;
 %     this.r=r;
diff --git a/mBranchI.mat b/mBranchI.mat
index 502780e..561bacf 100644
Binary files a/mBranchI.mat and b/mBranchI.mat differ
diff --git a/mBranchP.mat b/mBranchP.mat
index 1ba197c..1cd943b 100644
Binary files a/mBranchP.mat and b/mBranchP.mat differ
diff --git a/mBranchQ.mat b/mBranchQ.mat
index d3655ba..53d6409 100644
Binary files a/mBranchQ.mat and b/mBranchQ.mat differ
diff --git a/mPG.mat b/mPG.mat
index c08e25a..020a2af 100644
Binary files a/mPG.mat and b/mPG.mat differ
diff --git a/mQG.mat b/mQG.mat
index 6df8a65..f1f11f6 100644
Binary files a/mQG.mat and b/mQG.mat differ
diff --git a/mTransP.mat b/mTransP.mat
index 57d0292..3591b68 100644
Binary files a/mTransP.mat and b/mTransP.mat differ
diff --git a/mTransQ.mat b/mTransQ.mat
index f7a3b7a..3e32805 100644
Binary files a/mTransQ.mat and b/mTransQ.mat differ
diff --git a/mVolt.mat b/mVolt.mat
index 492b786..63417b7 100644
Binary files a/mVolt.mat and b/mVolt.mat differ
diff --git a/run.m b/run.m
index 830d046..cac1b6b 100644
--- a/run.m
+++ b/run.m
@@ -10,10 +10,11 @@ addpath('.\Powerflow')
 % 电压 相角
 %%
 %% 开始生成量测量
-sigma=0.03;% 标准差
+sigma=0.05;% 标准差
 %% 电压
 %电压幅值
 rVolt=Volt; %幅值
+BalanceVolt=Volt(Balance);
 mVolt=rVolt.*(normrnd(0,sigma,length(Volt),1)+1);%电压量测量
 rVAngel=Vangle;
 %% 电流
@@ -36,8 +37,10 @@ rBranchI=abs(cmpBranchI);% 支路
 mBranchI=rBranchI.*(normrnd(0,sigma,length(rBranchI),1)+1);%支路电流量测量
 %% 支路功率
 rBranchP=real((cmpV(lineI)-cmpV(lineJ)).*conj(cmpBranchI));
+rBranchP=rBranchP(abs(rBranchP)>1e-5);
 mBranchP=rBranchP.*(normrnd(0,sigma,length(rBranchP),1)+1);%支路功率量测量
 rBranchQ=imag((cmpV(lineI)-cmpV(lineJ)).*conj(cmpBranchI));
+rBranchQ=rBranchQ(abs(rBranchQ)>1e-5);
 mBranchQ=rBranchQ.*(normrnd(0,sigma,length(rBranchQ),1)+1);%支路功率量测量
 %% 注入功率
 rPD=PD;
@@ -82,15 +85,15 @@ seOpti=SEOpti();
 % save('mTransP','mTransP');
 % save('mTransQ','mTransQ');
 %% load
-load('mVolt');
-load('mPG');
-load('mQG');
-load('mBranchI');
-load('mBranchP');
-load('mBranchQ');
-load('mTransP');
-load('mTransQ');
-seOpti=seOpti.init(Busnum, mVolt,sigma,newwordParameter,zerosInjectionIndex,cmpY,onlyPG,onlyQG,mPG,mQG,Balance,mBranchI,mBranchP,mBranchQ,mTransP,mTransQ);
+% load('mVolt');
+% load('mPG');
+% load('mQG');
+% load('mBranchI');
+% load('mBranchP');
+% load('mBranchQ');
+% load('mTransP');
+% load('mTransQ');
+seOpti=seOpti.init(Busnum, mVolt,sigma,newwordParameter,zerosInjectionIndex,cmpY,onlyPG,onlyQG,mPG,mQG,Balance,mBranchI,mBranchP,mBranchQ,mTransP,mTransQ,BalanceVolt,rVolt,rVAngel);
 opts = optiset('solver','ipopt');
 opts.maxiter=85500;
 opts.maxtime=3000;
@@ -100,7 +103,7 @@ opts.tolrfun=1e-4;
 opts.tolafun=1e-4;
 opts.warnings='all';
 opts.display='off';
-x0=[ones(Busnum,1);-0.5*ones(Busnum,1)];
+x0=[ones(Busnum,1);-0.2*ones(Busnum,1)];
 % x0=[rVolt;rVAngel];
 [~,seOpti]=seOpti.equ(x0);
 nlrhs=seOpti.nlrhs();