function [ output_args ] = obj( this,x )
%OBJ Summary of this function goes here
%   Detailed explanation goes here
PDi=this.PDi;
QDi=this.QDi;
wPD=this.wPD;
wQD=this.wQD;
PD0=this.PD0;
QD0=this.QD0;
Volt0=this.Volt0;
SEVolt=x(1:length(Volt0));
wVolt=this.wVolt;
% wVolt=ones(length(wVolt),1);
t6=(wVolt.*((SEVolt-Volt0))).^2;
Balance=this.Balance;
t6(Balance)=0;%不计算平衡节点的
% 电流
SEVAngel=x(length(SEVolt)+1:end);
busNum=length(Volt0);
Angel=this.Angel;
r=this.r;
c=this.c;
PG=this.PG;
QG=this.QG;
Y=this.Y;
VMatrix=sparse(r,c,SEVAngel(r)-SEVAngel(c)-Angel,busNum,busNum);
PD_=PG-diag(SEVolt)*(Y.*cos(VMatrix))*SEVolt;
QD_=QG-diag(SEVolt)*(Y.*spfun(@sin,VMatrix))*SEVolt;
t4=(wPD(PDi).*(PD_(PDi)-PD0(PDi))).^2;
t5=(wQD(QDi).*(QD_(QDi)-QD0(QDi))).^2;
% loadCurrent=LoadCurrent( SEVolt,SEVAngel,PD0(PDi),QD0(QDi),PDi,QDi );
% wLoadCurrent=this.wLoadCurrent;
% mLoadCurrent=this.mLoadCurrent;
% t7=(wLoadCurrent.*(loadCurrent-mLoadCurrent)).^2;
% t7=wLoadCurrent.*((loadCurrent-mLoadCurrent)./mLoadCurrent).^2;
% output_args=sum(t4)+sum(t5)+sum(t6);
output_args=sum(t6)+sum(t4)+sum(t5);
output_args=full(output_args);



end