function [ V1r,V1i,I1r,I1i ] = IPMLoop(Vmeasurement,Imeasurement,BalI1r,BalI1i,busNum,Loadi,fsY1,Balance,Vref )
%把每个序的循环写在这个函数中。其实也就是内点法循环。
V1r=1*ones(busNum,1);
V1i=0*ones(busNum,1);
I1r=0.0*ones(length(Loadi),1);%注入电流，相当于放电机电流，与负荷电流负荷相反
I1i=0.0*ones(length(Loadi),1);%注入电流，相当于放电机电流，与负荷电流负荷相反
KK=0;
plotGap=zeros(1,60);
%初始化
%状态量为 SEPD SEQD SEVmf1 SEVaf1
RestraintCount=length(Loadi)*1;
ContrlCount=busNum*2+length(Loadi)*2;
CenterA=0.1;
Init_Z=sparse(ones(RestraintCount,1));
Init_W=sparse(-1.0*ones(RestraintCount,1));
Init_L=1*sparse(ones(RestraintCount,1));
Init_U=1*sparse(ones(RestraintCount,1));
Init_Y=sparse(2*busNum,1);%等式约束乘子
Gap=(Init_L'*Init_Z-Init_U'*Init_W);
kmax=60;
while(abs(Gap)>0.000001)
    if KK>kmax
        break;
    end
    plotGap(KK+1)=Gap;
    Init_u=Gap/2/RestraintCount*CenterA;
    %% 开始计算OPF
    %% 形成等式约束的雅克比
    deltH=func_deltH(busNum,fsY1,Loadi,Balance);
    %% 形成不等式约束的雅克比
    deltG=func_deltG(busNum,Loadi,I1r,I1i);
    deltG=zeros(size(deltG));
    %%
    L_1Z=diag(Init_Z./Init_L);
    U_1W=diag(Init_W./Init_U);
    %% 形成海森阵
    deltdeltF=func_deltdeltF(busNum,fsY1,Loadi);
%     deltdeltF=0;
    %% 形成ddHy
%     ddh=func_ddh(busNum,Loadi,Init_Z,Init_W);
    ddh=0;
    %%  开始构建ddg
    ddg=func_ddg(busNum,Loadi,Init_Z,Init_W);
    ddg=zeros(size(ddg));
    %%  开始构建deltF
    deltF=func_deltF(Vmeasurement,Imeasurement,busNum,fsY1,Loadi,V1r,V1i,I1r,I1i);
%     deltF=0;
    %%
    Luu=Init_U.*Init_W+Init_u*ones(RestraintCount,1);
    Lul=Init_L.*Init_Z-Init_u*ones(RestraintCount,1);
    Mat_G=FormG(I1r,I1i);
    Mat_G=zeros(size(Mat_G));
    Mat_H=FormH(fsY1,Loadi,V1r,V1i,I1r,I1i,BalI1r,BalI1i,Balance);
    Ly=Mat_H;
    Lz=FormLz(Loadi,Mat_G,Init_L);
    Lw=FormLw(Loadi,Mat_G,Init_U);
    Lx=FormLx(deltF,deltH,Init_Y,deltG,Init_Z,Init_W);
    YY=FormYY(Lul,Lz,Ly,Luu,Lw,Lx);
    %% 开始解方程
    XX=SolveIt(deltF,deltG,Init_L,Init_Z,Init_U,Init_W,deltdeltF,ddh,ddg,deltH,Init_Y,Ly,Lz,ContrlCount,Lw,Lul,Luu,RestraintCount,Lx,Balance,busNum);
    %%取各分量
    [deltZ,deltL,deltW,deltU,deltX,deltY]=AssignXX(XX,ContrlCount,RestraintCount,busNum,Balance);
    [Init_Z,Init_L,Init_W,Init_U,Init_Y,V1r,V1i,I1r,I1i]=Modification(Init_Z,Init_L,Init_W,Init_U,Init_Y,deltZ,deltL,deltW,deltU,deltX,deltY,V1r,V1i,I1r,I1i,ContrlCount,Balance,busNum,Loadi,Vref);
    Gap=(Init_L'*Init_Z-Init_U'*Init_W)+max(abs(deltX));
    fprintf('Gap %f\n',full(Gap));
    KK=KK+1;
end
f=sum(([real(Imeasurement);imag(Imeasurement)]-[-I1r;-I1i]).^2)+sum((real(Vmeasurement)-V1r(Loadi)).^2)+sum((imag(Vmeasurement)-V1i(Loadi)).^2);

end