function [Volt,UAngel,Init_Z,Init_W,Init_L,Init_U,Init_Y,PG,QG,RestraintCount,wPG,wQG,wPD,wQD,PD,PD0,QD,randPDind,Loadi]=OPF_Init(Busnum,Balance,PG,QG,Volt,GenU,GenL,PVi,PGi,PVQU,PVQL,PD0,QD0,QD,PD)
Loadi=find(QD~=0 | PD~=0);
%Loadi=[1:Busnum]';
RestraintCount=size(Loadi,1)*2+Busnum*1; %约束条件数,放开所有QD
t_Bal_volt=Volt(Balance);
Volt=sparse(1*ones(1,Busnum));
Volt(Balance)=t_Bal_volt;
UAngel=sparse(1,Busnum);
Init_Z=sparse(ones(1,RestraintCount));
Init_W=sparse(-1*ones(1,RestraintCount));
Init_L=1*sparse(ones(1,RestraintCount));
Init_U=1*sparse(ones(1,RestraintCount));
Init_Y=sparse(1,2*Busnum);%与学姐一致
tPU=sparse(GenU(:,2));% 发电机有功上限
tQU=sparse(PVQU(:,1));% 无功上限
tPL=sparse(GenL(:,2));% 发电机有功下限
tQL=sparse(PVQL(:,1));% 无功下限
wPG=0;
wQG=0;
%randInt=randperm(size(Loadi,1));
%randPDind=randInt(1:10);
randPDind=0;
wPD=1/.05^2*zeros(size(Loadi,1),1);
wPD(1:2:end)=0;
wQD=1/.05^2*ones(size(Loadi,1),1);
wQD(1:2:end)=0;
%wD(randPDind)=0;%一些负荷不约束
%wD(7)=0;
% wD(11)=0;
PD=0.5*PD0;
%powerFacter=0.98;
%QD=PD*sqrt((1-powerFacter^2)/powerFacter^2);
QD=.5*QD0;
end