Re: Variable power factor

DEar Dr. Zimmerman, I don't know how I should change the equality constraint to inequality constraint. I'll be very grateful if you can help me. Best regards, Carlos On Fri, Sep 18, 2015 at 4:12 PM, Ray Zimmerman wrote: > *Please address MATPOWER support questions

Re: convergence problem in runpf.

Hello MatPower community, I want to analyze monetary consequences of reactive power dispatch on energy market which is already considering real power prices only. For this I have data of conventional power plants dispatch for every hour in whole year and respective variable cost of generation.

Re: reactive power dispatch

Hi Mirish, I just finished my work that is somewhat related to yours. I did a reactive power dispatch where the Pg of all generators are already known since it is cleared separately in the electricity market. What i did was i set one generator to be a "slack" generator to take up/absorb the

Add measurement noise

Hi Ray, I'm tring to do state estimation with measurements V and I in rectangular form. Measurement noise is simulated as independent zero-mean Gaussian with standard deviation per real component 0.01 and 0.02 for voltages and currents, respectively. Ir and Vr are real parts of I and V

Re: Variable power factor

You really do need to understand what that code is doing before you can make modifications to make it do something else. So, to repeat my main question … is there a particular part of that code that you are having trouble understanding? It is setting up a constraint l <= A * x <= u, where x =

reactive power dispatch

First of all, when asking a new unrelated question, please don’t just reply to a previous message. Start a new thread with a new subject. So, are you saying your are attempting to run an AC OPF problem where Pg is fixed and Qg are the only free variables? If so, the only way it really has a