Dear Sir,
I am running state estimation program for IEEE 118-bus system. I am getting
following error. This program is converging for all the test systems except
IEEE 118-bus system. Please help me to resolve this problem. Is this error
is due to ill-conditioning of Jacobian matrix when initialising with flat
start.
runse('case118')
Newton's method power flow converged in 3 iterations.
State estimator converged in 5 iterations.
Rejecting 1 measurement(s) as bad data:
index B
----- -------------
441 55759.60
Warning: Matrix is singular to working precision.
> In state_est at 193
In runse at 148
Warning: Matrix is singular to working precision.
> In state_est at 193
In runse at 148
Warning: Matrix is singular to working precision.
Thanking you,
With Regards.
