短路计算IEEE39节点matlab代码

以下是一个简单的IEEE 39节点系统的短路计算的Matlab代码示例：

%定义系统参数
Zbase = (115^2)/100000; %基准阻抗
Zline = [0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.025+0.15i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i,0.03+0.18i];
Zbus = [0.02+0.2i,0.01+0.1i,0.01+0.1i,0.00+0.1i,0.00+0.1i,0.00+0.1i,0.03+0.3i,0.03+0.3i,0.00+0.3i,0.00+0.3i,0.00+0.3i,0.00+0.3i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i,0.00+0.2i];
Vbase = 115; %基准电压

%计算阻抗矩阵
Zline = Zline.*Zbase;
Zbus = Zbus.*Zbase;
Ybus = zeros(39,39);
for i=1:39
   for j=1:39
      if i==j
         for k=1:39
            Ybus(i,j) = Ybus(i,j) + 1/Zbus(i,k);
         end
      else
         Ybus(i,j) = -1/Zbus(i,j);
      end
   end
end

%设置故障类型和位置
bus_fault = 10; %故障节点
fault_type = '3P'; %故障类型，3P表示三相短路

%计算短路电流
if strcmp(fault_type,'3P')
   %三相短路
   Zf = 0;
   for k=1:24
      Zf = Zf + Zline(k);
   end
   Zf = Zf/24;
   If = 3*Vbase/(sqrt(3)*Zf);
else
   %单相接地短路
   Zf = Zline(bus_fault);
   If = Vbase/Zf;
end

%计算短路电流向量
Ibus = zeros(39,1);
for i=1:39
   if i==bus_fault
      if strcmp(fault_type,'3P')
         Ibus(i) = -3*If;
      else
         Ibus(i) = -If;
      end
   else
      Ibus(i) = Ybus(i,bus_fault)*Ibus(bus_fault);
   end
end

%输出结果
disp('短路电流向量：');
disp(Ibus);

请注意，这只是一个简单的示例代码，实际应用中可能需要考虑更多的因素，例如电源的不对称性和非线性等。