Dear Ray, Thank you very much for your responses. I have read the 4-page documentation but unfortunately, it doesn't provide much information for the reader especially in chaining the available measurements. I will try to contact the author in this regard. Thanks.
On Mon, Oct 16, 2017 at 9:25 PM, Ray Zimmerman <[email protected]> wrote: > First, the state estimation code in MATPOWER is contributed code that is > not a supported part of the main MATPOWER functionality. So, all I can do > is point you to the included documentation and suggest you follow up with > the original author Rui Bo if you have questions. > > I would start by checking out the contents of the extras/se directory in > MATPOWER. In particular, you’ll want to have a look at the se_intro.pdf > document > there that describes the code. > > Having said that, I think that with regards to your first question, the > voltages at the slack and PV buses will (and should) remain at their set > points specified in col VG of the gen matrix. Also, you can remove a line > by setting it’s BR_STATUS column in the branch matrix to zero. > > Ray > > > On Oct 14, 2017, at 4:05 AM, Afsaneh Faraji <[email protected]> wrote: > > Hello, > > I hope all is well with you. > > I have 3 questions about Matpower SE package and I would be so grateful if > you could help me in this regard. Sorry for the number of questions. > > 1) When I change the input measurements of the SE for 14 bus and make them > random with the standard deviation of 20%, still, most of the estimated > voltage magnitudes are rather the same. For example, the value of bus 1 is > 1.06 always and others just change a little. As another example, one just > changes in this interval [1.04,1.05]. Others are the same. But the voltage > values can be [0.95,1.05] as I know ([0.94,1.06] in Matpower setting). I > also noticed that the power flow with random load values also can't change > the voltage values reasonably and the voltage values are constant. I run > 10000 times. Where is the problem? > > > 2) How can I use a different type of measurements? I want to change the > available measurements and do SE based on some flow measurements and also > injection measurements but the existing available measurements are > generations, flow measurements, and voltage measurements. Most of the > papers use flow measurements and injections as available ones. > > 3) How can I simulate an outage (line, etc.) in this estimation code? > > > Thank you very much for your help and time. > > Best Wishes, > > >
