How to calculate ISF's &PTDF's in MATPOWER?

Hi,

How to calculate ISF's&PTDF's in matpower?Do we need to write code or any direct way?

[ayyappa rudrasimha yedida]

In matpower you can write code or directly you can use makePTDF fucntion but it will give ISF matrix.From that you have to calculate PTDFs using below formula PTDF(l,m)=ISF(l,0)-ISF(m,0) 0-slack bus

Answer 1

[Hazem]

For ISF you may write

mpc=loadcase('case9');

ISF=makePTDF(mpc);

To calculate PTDF between x and y

PTDFxy=ISF(:,x)-ISF(:,y);