基于cplex的微电网优化调度研究

%% 请先确保YALMIP工具箱和CPLEX求解器正确安装 %% 初始化 clc; clear all; close all; %% 导入微网 Pw=sdpvar(1,24,'full'); %风机出力 Ppv=sdpvar(1,24,'full');%光伏出力 Pbat=sdpvar(1,24,'full');%蓄电池出力 Pnet=sdpvar(1,24,'full');%交换功率 Pbuy=sdpvar(1,24,'full');%从电网购电电量 Psell=sdpvar(1,24,'full');%向电网售电电量 Temp_net=binvar(1,24,'full'); % 购|售电标志 Temp_cha=binvar(1,24,'full'); %充电标志 Temp_dis=binvar(1,24,'full'); %放电标志 Temp_static=binvar(1,24,'full'); %电池静置标志 Pcha=sdpvar(1,24); Pdis=sdpvar(1,24); Constraints = []; load load.mat %微网基础数据读入 load fengji_predict.mat %风机预测出力 load pv_predict.mat %光伏预测出力 load price.mat %分时电价 load chuneng.mat %储能电池参数定义 figure(1); bar(Load); hold on plot(Pw,'-gd','Color',[1,0,0],'LineWidth',1,'MarkerEdgeColor','R','MarkerFaceColor',[1 0 0],'MarkerSize',5); hold on plot(Ppv,'-mo','Color',[0,1,0],'LineWidth',1,'MarkerEdgeColor','R','MarkerFaceColor',[1 0 0],'MarkerSize',5); hold off axis([0 24 0 240]) ; xlabel('时间/h'); set(gca,'xTick',(0:2:24),'yTick',(0:40:240)); ylabel('功率/kW'); legend('电负荷','风机预测出力','光伏预测出力'); legend('Location', 'northwest'); title('微网基本情况'); %% 约束 for k = 1:24 Constraints = [Constraints, -POWER<=Pnet(1,k)<=POWER,0<=Pbuy(1,k)<=POWER, -POWER<=Psell(1,k)<=0]; %主网功率交换约束，不大于160kW Constraints = [Constraints,Pnet(1,k)+Pw(1,k)+Ppv(1,k)==Load(1,k)+Pbat(1,k)]; %功率平衡约束，电网+风电+光伏 = 负载 + 电池充电 Constraints = [Constraints, implies(Temp_net(1,k),[Pnet(1,k)>=0,Pbuy(1,k)==Pnet(1,k),Psell(1,k)==0])]; %购电情况约束，Pnet>0是购电，Pnet<0是售电 Constraints = [Constraints, implies(1-Temp_net(1,k),[Pnet(1,k)<=0,Psell(1,k)==Pnet(1,k),Pbuy(1,k)==0])]; %售电情况约束 %蓄电池约束 Constraints = [Constraints, -Pcs<=Pbat(1,k)<=Pcs,0<=Pcha(1,k)<=Pcs,-Pcs<=Pdis(1,k)<=0]; %电池充放电约束,PCS功率是40kW Constraints = [Constraints, implies(Temp_cha(1,k),[Pbat(1,k)>=0,Pcha(1,k)==Pbat(1,k),Pdis(1,k)==0])]; %充电情况约束 Constraints = [Constraints, implies(Temp_dis(1,k),[Pbat(1,k)<=0,Pdis(1,k)==Pbat(1,k),Pcha(1,k)==0])]; %放电情况约束 Constraints = [Constraints, implies(Temp_static(1,k),[Pbat(1,k)==0,Pdis(1,k)==0,Pcha(1,k)==0])]; %静置情况约束 Constraints = [Constraints,Temp_cha(1,k)+Temp_dis(1,k)+Temp_static(1,k)==1]; Constraints=[Constraints,Ebattery*(socmin-soc0)<=sum(Pdis(1,1:k)+Pcha(1,1:k))<=Ebattery*(socmax-soc0)]; %SOC约束，电池容量300kwh，初始S0C为0.4，0.3<=SOC<=0.95 end Constraints=[Constraints,sum(Pdis+Pcha)==0]; %ST=S0，始末SOC相等约束 %% 目标函数 F=0; %总费用计算 for k = 1:24 F = F + 0.52*Pw(:,k)+0.72*Ppv(:,k)+C_buy(:,k)*Pbuy(:,k)+C_sell(:,k)*Psell(1,k)+0.2*Pdis(1,k); end ops=sdpsettings('solver', 'cplex');%参数指定程序用cplex求解器 optimize(Constraints,F,ops); disp(['总费用=']); value(F) %% 画图 x=1:24; PP=[Pbuy;-Pdis;Pw;Ppv]; PP_neg=[Psell;-Pcha]; figure(2) bar(PP','stack'); hold on h=legend('电网交换功率','蓄电池充电功率','风机出力','光伏出力','Location','northwest'); set(h,'Orientation','horizon'); bar(PP_neg','stack'); hold on plot(x,value(Load),'r','linewidth',2); hold off xlabel('时间/h'); set(gca,'xTick',(1:2:24),'yTick',(0:50:300)); ylabel('功率/kW'); figure(3) plot(x,value(Pbuy+Psell),'-ro','Color',[1,0,0],'LineWidth',2,'MarkerEdgeColor','k','MarkerFaceColor',[0 0 1],'MarkerSize',5); hold on plot(x,value(Pdis+Pcha),'-gd','Color',[1,0,1],'LineWidth',2,'MarkerEdgeColor','k','MarkerFaceColor',[0 0 1],'MarkerSize',5); hold off xlabel('时间/h'); set(gca,'xTick',(0:2:24),'yTick',(-120:20:60)); ylabel('功率/kW'); h=legend('电网购售电功率 >0是购电 <0是售电','蓄电池充放电功率 >0是充电 <0是放电'); soc = zeros(1,25); s = zeros(1,25); soc(1)=soc0; for k=1:24 s(k)=value(sum(Pdis(1,1:k)+Pcha(1,1:k)))/Ebattery+soc0; soc(k+1)=s(k); end soc(1)=soc0; xx=0:24; figure(4) plot(xx,soc,'-ro','Color',[1,0,0],'LineWidth',2,'MarkerEdgeColor','k','MarkerFaceColor',[0 0 1],'MarkerSize',5); xlabel('时间/h'); set(gca,'xTick',(0:2:24),'yTick',(0.2:0.1:1)); ylabel('SOC值'); title('蓄电池SOC状态');