Merging of lines..

[nilesh patel]

Dear Sir,      My power system to be simulated consist of 
three parallel lines having same length and all  parameters between two 
buses. (There are no. of such lines in parallel so system size increases to 
much).
My question is- Can i merge all parallel (three) lines as one line in 
simulation or all actual lines to be taken?
Thanking u. 
 
Nilesh Patel

Re: Merging of lines..

[Ray Zimmerman]

It depends on your application, but in general, it is fine to merge the lines 
if all you care about is the aggregate behavior. The only reason I can think of 
to keep them separate is if you want to look at things like the effects of 
taking one of them out of service. Otherwise, the OPF and power flow solutions 
should be identical with a properly aggregated line.

Ray


> On Jan 30, 2015, at 3:34 AM, nilesh patel  wrote:
> 
> Dear Sir,
>   My power system to be simulated consist of three parallel lines having 
> same length and all  parameters between two buses. (There are no. of such 
> lines in parallel so system size increases to much).
> 
> My question is- Can i merge all parallel (three) lines as one line in 
> simulation or all actual lines to be taken?
> 
> Thanking u. 
>  
> 
> Nilesh Patel
> 
>  
> 
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