89 lines
2.6 KiB
Matlab
89 lines
2.6 KiB
Matlab
clc
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clear
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yalmip('clear')
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tic
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[kmax,Precision,UAngel,Volt,Busnum,PVi,PVu,Balance,Y,Angle,P0,Q0,r,c,GB, ...
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Linei,Linej,Transfori,Transforj,GenU,GenL,GenC,PG,QG,PD,QD,CenterA,PGi,PVQU,PVQL, ...
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Liner,Linex,Lineb,Transforr,Transforx,Transfork0]= ...
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pf('ieee30.dat');
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%% 潮流等式
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AngleIJ=sparse(r,c,UAngel(r)-UAngel(c)-Angle',Busnum,Busnum);
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PGBal=PD+diag(Volt)*Y.*cos(AngleIJ)*Volt';
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QGBal=QD+diag(Volt)*Y.*sin(AngleIJ)*Volt';
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%% 初值-即测量值
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PG0=PG;
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QG0=QG;
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PD0=PD;
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QD0=QD;
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PDReal=PD;%真值
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QDReal=QD;%真值
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%PD0(12)=PD0(12)+0.001;
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PG0(Balance)=PGBal(Balance);
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QG0(Balance)=QGBal(Balance);
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QG0(PVi)=QGBal(PVi);
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PG(Balance)=PGBal(Balance);
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QG(PVi)=QGBal(PVi);
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PF=1;
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AngleIJ=sparse(r,c,UAngel(r)-UAngel(c)-Angle',Busnum,Busnum);
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dP=PG-PD-diag(Volt)*Y.*cos(AngleIJ)*Volt';
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dPD=abs(dP./PD);
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dQ=QG-QD-diag(Volt)*Y.*sin(AngleIJ)*Volt';
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dQD=abs(dQ./QD);
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maxdPQ=max([dPD(dPD<10);dQD(dQD<10)]);
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[Volt,UAngel,Init_Z,Init_W,Init_L,Init_U,Init_Y,PG,QG,RestraintCount,wPG,wQG,wPD,wQD,PD,PD0,QD,randPDind,Loadi,notLoadi]=OPF_Init(Busnum,Balance,PG,QG,Volt,GenU,GenL,PVi,PGi,PVQU,PVQL,PD0,QD0,QD,PD);
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%% 定义变量
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BalVolt=Volt(Balance);
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Volt=sdpvar(Busnum,1);
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UAngel=sdpvar(Busnum,1);
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% PG=sdpvar(Busnum,1);
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% QG=sdpvar(Busnum,1);
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PD=sdpvar(Busnum,1);
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QD=sdpvar(Busnum,1);
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AngleIJ=sdpvar(Busnum,Busnum,'full');
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%% 目标函数
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Objective=ObjectiveFun(PG,PG0,PGi,QG,QG0,PVi,PD,PD0,QD,QD0,wPG,wQG,wPD,wQD,Loadi);
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%AngleIJ=sparse(r,c,UAngel(r)-UAngel(c)-Angle,Busnum,Busnum);
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%% 赋初值，可以加快求解速度。
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assign(Volt(:),1);
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assign(UAngel(:),0);
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assign(PD(:),PD0(:));
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assign(QD(:),QD0(:));
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% assign(PG(:),PG0(:));
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% assign(QG(:),QG0(:));
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%% YALMIP部分
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dP=PG0-PD-diag(Volt)*Y.*cos( sparse(r,c,UAngel(r)-UAngel(c)-Angle,Busnum,Busnum) )*Volt;
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dQ=QG0-QD-diag(Volt)*Y.*sin( sparse(r,c,UAngel(r)-UAngel(c)-Angle,Busnum,Busnum) )*Volt;
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Loadi=PD0~=0 | QD0~=0 |PG0~=0|QG0~=0;
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Constraints = [%AngleIJ-sparse(r,c,UAngel(r)-UAngel(c)-Angle,Busnum,Busnum)==0, ...
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dP(setdiff(1:Busnum,Loadi))==0, ...
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dQ(setdiff(1:Busnum,Loadi))==0, ...
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% dP==0, ...
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% dQ==0, ...
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PD(PD0==0)==0, ...
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QD(QD0==0)==0, ...
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0.9*ones(Busnum,1)<=Volt<=1.1*ones(Busnum,1), ...
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Volt(Balance)==BalVolt;
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];
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options = sdpsettings('verbose',2,'showprogress',1,'debug',0,'solver','ipopt','usex0','1');
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sol = solvesdp(Constraints,Objective,options);
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if sol.problem == 0
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fprintf('Volt\n');
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dvolt=double(Volt)
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fprintf('VoltAngle\n');
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dVangle=double(UAngel)
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fprintf('ojb\n');
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optimalObj=double(Objective)
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double(PG)-PG0;
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sol
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else
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display('Hmm, something went wrong!');
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sol.info
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sol.solveroutput
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yalmiperror(sol.problem)
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end
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