Sorry, but, please restrict discussions here to things that are directly related to the use of MATPOWER. Power systems questions that are not specific to MATPOWER should be taken to other forums.
Thanks,
Ray
> On Feb 29, 2016, at 10:22 PM, pham nang van <van_a2_1999_2...@yahoo.com>
> wrote:
>
> Hi MATPOWER friends
> Please, help me explain the equation (21) given in the article below.
>
>
> <ajassp.2008.242.247 (1).pdf>
