There seems to be something amiss with the case3375wp data. Matlab complains of
singular Jacobian matrix.
mpopt= mpoption;
mpoption(31) = 2;
runpf('case3375wp',mpopt,'pfresults');
(printpf is commented out)
it max P & Q mismatch (p.u.)
---- ---------------------------
0 2.442e+01Warning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
1 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
2 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
3 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
4 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
5 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
6 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
7 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
8 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
9 NaNWarning: Matrix is singular to working precision.
> In newtonpf at 125
In runpf at 224
10 NaN
Newton's method power flow did not converge in 10 iterations.
Thanks,
Shri
