error during powerflow run

2015-02-06 Thread nilesh patel 
Dear Sir,  I am getting following error while i m running power flow of 
450 bus system. What could be the problem?
Warning: Matrix is singular to working precision. > In newtonpf at 
108  In runpf at 224 Warning: Matrix is singular to working 
precision. Newton's method power flow did not converge in 10 iterations.


Thanks.

Nilesh Patel

Re: error during powerflow run

2015-02-06 Thread Ray Zimmerman 
See FAQ #5  for starters.

   Ray


> On Feb 6, 2015, at 5:03 AM, nilesh patel  wrote:
> 
> Dear Sir,
>   I am getting following error while i m running power flow of 450 bus 
> system. What could be the problem?
> 
> Warning: Matrix is singular to working precision. 
> > In newtonpf at 108
>   In runpf at 224 
> Warning: Matrix is singular to working precision. 
> Newton's method power flow did not converge in 10 iterations.
> 
> 
> 
> Thanks.
> 
> 
> Nilesh Patel
> 
>  
> 
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