Re: Adding Wind Generation to Profiles

2017-09-27 Thread Ray Zimmerman
Josh, Looks like you got it working by splitting out the individual wind profiles. It should also work to set the rows field to [1:7] and then define a matrix of profiles for each of the 7 generators by assigning an nt x 7 matrix to windprofile(:, 1, :). Hope this helps, Ray > On Sep

Re: How to calculate the power flow for specific branch and curtail the generator accordingly

2017-09-27 Thread Ray Zimmerman
If you are trying to adjust the generation to respect a branch flow limit it sounds like you want to do an optimal power flow. In an OPF the flow limits are respected and the generator dispatch depends (primarily) on the generator limits and the relative costs of the generators, as well as other

Re: Zonal reserve with stochastic Wind generation in MOST

2017-09-27 Thread Ray Zimmerman
The zonal reserves in MOST are designed for deterministic problems. See footnote 19 at the bottom of page 35 in the MOST User’s Manual . So, it is designed to handle either zonal reserve requirements or stochastic wind, but not bot

Re: MATPOWER discussion forummatpowe...@list.cornell.edu

2017-09-27 Thread Ray Zimmerman
Hi Vlad, Yes, it should work just fine to add solar in the same way. I suggest making a copy of addwind.m and calling it addsolar.m. Then edit addsolar.m and replace “wind” with “solar” everywhere and use it just like you do with addwind.m. The 2 key differences are the fuel type that is used a

Re: Shunt looses

2017-09-27 Thread Ray Zimmerman
I’m not sure whether you are referring to bus shunts or the shunt portions of the transmission line model. And it’s not clear whether you are referring to including losses in the model itself or in the loss numbers that are output to the command window. Both bus shunt and line charging losses a

Re: Doubt regarding adding constraints

2017-09-27 Thread Ray Zimmerman
Voltage magnitude constraints are already included. Simply set the VMIN and VMAX columns in the bus matrix to the desired values. For voltage angles, simply define the A, l and u corresponding to equation (6.25) in the User’s Manual

Re: Tap ratios set to 0, run OPF with tap changers

2017-09-27 Thread Ray Zimmerman
I should also mention that the pull request Shri referenced with respect to transformer taps is for power flow, not OPF. Ray > On Sep 26, 2017, at 11:49 AM, Elis Nycander wrote: > > Hey, thanks for your answers. > > Indeed the solution is the same if the tap ratios are set to 0 or 1 (as

Re: Reactive Power Flow

2017-09-27 Thread Ray Zimmerman
The flows printed in the output are the injections from the bus into the corresponding end of the branch. Because of reactive losses (which can be negative, due to reactive power injection from line charging), the absolute values of the reactive flows at either end of the line are not expected t

FACTS INCLUSION

2017-09-27 Thread Ahmad Sadiq Abubakar
Hi all, Is there any development or progress on FACTS models inclusion in MATPOWER? Or rather what is the progress so far? Can I be involved in it? In anticipation of your responses.

Advice Regarding UCED

2017-09-27 Thread Stephen Suffian
I am attempting to look at the value of reduced forecasting error by running a deterministic 24-hour UC using MOST, followed by a re-dispatch and each hour (where it runs the same UCED but with the correct demand value at the first time point in the redispatch, and then the forecasted value for the

Re: FACTS INCLUSION

2017-09-27 Thread Ray Zimmerman
I am not aware of anything specific being worked on at the moment related to FACTS devices. However, over the next year, I plan to do some refactoring of some of the core of MATPOWER to generalize things in a way that should make modeling FACTS devices much easier. So, anyone seriously planning

Re: FACTS INCLUSION

2017-09-27 Thread Ahmad Sadiq Abubakar
Thank you Ray for the reply, I wish to coordinate with you on this front. How to I get involved and when likely are we going to start. I was the one who contributed the voltage and branch limits enforcement in CPF termination. Regards. Ahmad. On Sep 27, 2017 7:33 PM, "Ray Zimmerman" wrote: I a

Re: FACTS INCLUSION

2017-09-27 Thread Ray Zimmerman
Let’s coordinate off-line initially, and then, on MATPOWER-DEV-L when it makes sense. Ray > On Sep 27, 2017, at 2:38 PM, Ahmad Sadiq Abubakar > wrote: > > Thank you Ray for the reply, > I wish to coordinate with you on this front. > How to I get involved and when likely are we going to st