All p.u. parameters (e.g. branch impedances) are given with respect to a particular per-unit power base and should be specified (or converted) to match a common, system-wide base. If you do that, as long as it used consistently for all p.u. parameters, you should get the same solution.
Ray On Oct 4, 2022, at 8:53 PM, Kamilu Alabi Sanusi <[email protected]<mailto:[email protected]>> wrote: Hi everyone, Please I need an assistance with regards to base impedance as follows: In my power program, i choseed Pbase as 1000W and Vbase as 220V as the rating of the DG is 10KVA, 220VL-L. But when I decided to change the Pbase to 10KVA or other base value since it can be choosen arbitrarily it directly changes the solutions of the load flow. Please what could be the problem? Thank you Thank you and kind regards Sanusi Alabi Kamilu,
