hello sir, I am ambika. I want to do reactive power optimization using GSA algorithm. Now i am using matpower 4.1 version. I would like to know in which variable real power loss and reactive power loss is specified. Also i would like to know the variables in which tap seetings, reactive power limits, shunt capacitors are specified. How to do the optimization?. Is there any program for loss minimization from your side Please reply me from ambika
On Monday, 10 February 2014 8:09 PM, amel zerigui <[email protected]> wrote: But he problem can be solved with Active set option correctly, by using the same stating point. Thanks ________________________________ From: [email protected] Subject: Re: Hessian problem Date: Mon, 10 Feb 2014 09:31:56 -0500 To: [email protected] It is impossible for me to know. It may in fact not be a problem with either, but rather that the problem you specified is infeasible. But, as I said, I have no way of knowing. -- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Feb 10, 2014, at 8:44 AM, amel zerigui <[email protected]> wrote: Hi, >I changed the equality constraints of matpower by adding new constraints, in >same way I changed also the Jacobian matrix, and when I checked the computed >first derivative, I found this result: > >Nonlinear equality constraint derivatives: >Maximum relative discrepancy between derivatives = 4.44985e-009 > >This mean the modification is correct, then I estimated the hessian by using >BFGS but the optimal point found is: > >No feasible solution found. > >I would like to know if the problem is Matlab problem or Matpower. > >Thanks for help. > > >
