Ok … so, is there a specific part of newtonpf.m that you don’t follow? It seems to me that you simply need to find and modify the corresponding element in F and row in J. Is the difficulty in finding the appropriate elements to modify? or knowing how to modify them?
-- Ray Zimmerman Senior Research Associate B30 Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Nov 25, 2013, at 9:11 PM, hussein Adel <[email protected]> wrote: > I am not sure if replying this mail is the right way to put my reply on the > archive, but I am sorry if it is wrong. What I meant by editing the jacobian > matrix is: > I want to add a device whose P and Q depend on the voltage magnitude and > angle. This is why I want to insert it in the jacobian and mismatch > equations. But this is to be done at only one bus. This is what I do not know > how to do even though I tried many times with newtonpf.m , runpf.m , and > dSbus_dV.m > > I hope it is clear, and I hope you can answer me. > Regards. > > From: [email protected] > Subject: Re: Editing the Jacobian Matrix > Date: Mon, 25 Nov 2013 16:34:49 -0500 > To: [email protected] > > I’m not sure I understand what you want to do. If you mean that you simply > want to modify the fixed net real and reactive power injections at a given > bus, you can do this simply by changing the values in the PD and QD columns > in the bus matrix. If you mean that you want to model some new devices whose > P and Q depend on other variables (e.g. bus voltage), then you will need to > get into the code, and anything is possible depending how deep you want to > get. Have a look at newtonpf.m to get started. > > -- > Ray Zimmerman > Senior Research Associate > B30 Warren Hall, Cornell University, Ithaca, NY 14853 > phone: (607) 255-9645 > > > > On Nov 22, 2013, at 5:29 PM, hussein Adel <[email protected]> wrote: > > I want to add components on the 14 bus system that exists in MATPOWER. The > problem is that inquires me to add P&Q at specific two buses. The addition of > those P&Q has to be done at the jacobian matrix and the mismatch equations > directly. It is so unclear for me how to add components at specific buses on > the jacobian matrix or the mismatch equations in matpower. > It seems to me like it is done as a whole and I cant make a change at a > specific bus alone in the matrix. > Any help is appreciated.
