The state estimation code in MATPOWER is unsupported code contributed by Rui
Bo. You might try contacting him directly.
Ray
> On Aug 1, 2018, at 4:55 AM, Ji Chen <[email protected]> wrote:
>
> Hi,
>
> The standard deviation of measurements is fixed ,like sigma=0.02, in
> test_se_14bus.m showed below in fig 1. While in state_est.m, the standard
> deviation is associated with the abs and measurements and the full scale of
> the instruments. Could someone tell me why?
>
>
> Additionally, as I know, z_measure = z_ture + sigma*randn(n,1) where randn is
> the function to create normally distributed noise. I doubt if the sigma=0.02
> is too large for the measurements, cause some values of measurements in fig 3
> like QF and QT is around 0.02.
>
>
> Thanks
>
> <11.png>
>
> 1.fig
>
> <22.png>
>
> 2.fig
>
> <33.png>
>
> 3.fig
>
>
> --
> Ji Chen,
> Huazhong University of S&T,
> Wuhan, China.
> [email protected] <mailto:[email protected]>
