Dear Siddique Tomal,

 

again, that sounds exactly like a problem that one would solve with an optimal 
power flow. The OPF allows yout to define costs for active/reactive power, 
constraints for vmin/vmax and then to find the network state that minimizes the 
cost function while complying with all constraints. What is the reason you 
don’t want to or can’t use an OPF for this?

 

Best

Leon

 

Von: [email protected] 
[mailto:[email protected]] Im Auftrag von siddique 
tomal
Gesendet: Freitag, 27. Januar 2017 13:57
An: MATPOWER discussion forum <[email protected]>
Betreff: Re: Bus Voltage Constraints

 

Dear Leon Thurner,

Thanks for the reply. Actually in my work the active and reactive wont be 
fixed. I will change the value of both power more specifically the reactive 
power frequently to have a best value my cost function. And as the power is not 
fixed here so bus voltage is changeable. And here i want to put a limit for the 
change of bus voltage. Hope you understand and help me to find a way to solve.

Thanks 

 

On Fri, Jan 27, 2017 at 6:46 PM, Leon Thurner <[email protected] 
<mailto:[email protected]> > wrote:

Dear Siddique Tomal,

 

having constraints for bus voltages is only possible if you have flexibilities 
that allow you to keep those constraints. In a normal power flow you do not 
have these flexibilties, since active and reactive power is fixed at most 
buses. What you ask for is only possible with an OPF and is in fact exactly 
what the OPF is designed to do.

 

Regards

Leon 

 

Von: [email protected] 
<mailto:[email protected]>  
[mailto:[email protected] 
<mailto:[email protected]> ] Im Auftrag von siddique 
tomal
Gesendet: Freitag, 27. Januar 2017 13:33
An: [email protected] <mailto:[email protected]> 
Betreff: Bus Voltage Constraints

 

Dear all,

i have a query about bus voltage constraints in normal power flow. I want to 
set a limit for every bus voltage (+-5%). So I’m asking help regarding this 
fact. It is just like 'vmax' and 'vmin' column in bus data matrix works only in 
optimal power flow. but i need this feature for normal power flow.

Thanks 

 

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