Bus Voltage Constraints

[siddique tomal]

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