Re: Question about sparsity-based implementation in MATPower

I would also mention, for those who are interested, that version 5.1 of MATPOWER includes a wrapper function mplinsolve() that allows you to choose between different linear solvers for computing the Newton update

Re: About PV buses with negative P gens, and the implementation of dclines in powerflow (not OPF)

1. Yes and yes. 2. For the purpose of an OPF, a dispatchable load is defined as a generator with negative PMIN and zero PMAX. In this case, an extra constant power factor constraint is added to the OPF problem. This does not affect simple power flow. 3. Yes. Ray > On Oct 19, 2015, at 2:09

Re: Question about sparsity-based implementation in MATPower

Thank you Dr. Zimmerman and Dr. Marin. I greatly appreciate your valuable inputs. Cheers! Shruti On Mon, Oct 19, 2015 at 10:15 AM, Jose Luis Marin wrote: > > I'd like to add that Matlab keeps incorporating the latest sparse direct > solvers coming from Tim Davis and his

About PV buses with negative P gens, and the implementation of dclines in powerflow (not OPF)

Hello Ray, I read section 7.5.3 of the manual about *DC transmission lines*, but I still have some questions in what regards simple *powerflow*: 1. As I understand it, the implementation will place dummy generators at each end. Are those buses then switched to PV type, taking the voltage

Re: Question about sparsity-based implementation in MATPower

I'd like to add that Matlab keeps incorporating the latest sparse direct solvers coming from Tim Davis and his group from TAMU / U. of Florida ( SuiteSparse ) into their new versions. I believe that if the Jacobian is symmetric, current versions