Dr Zimmerman Regarding the modelling of a radial distribution system (eg 11kV system) , you informed me that MATPOWER should work fine, except for high R/X ratios.
a) Could you please specify this numerically? ie R/X > 2 is an example of a high ratio that could cause problems in MATPOWER ? b) Furthermore, when you are referring to a 'balanced system' , what exactly do you mean? In distribution systems, 'balanced' system sometimes is the system that has all its lateral feeders having the same load. Or do you mean you mean that MATPOWER cannot work with loads such as inverters, drives , etc which are non-linear? Thank you ________________________________ From: Ray Zimmerman <[email protected]> To: MATPOWER discussion forum <[email protected]> Sent: Tuesday, April 16, 2013 1:20 PM Subject: Re: MATPOWER It should work fine depending on the parameters. Very high R/X ratios in the lines can possibly cause numerical difficulties. And, of course, MATPOWER would only model a balanced system. It does not model an unbalanced 3-phase network. -- Ray Zimmerman Senior Research Associate 419A Warren Hall, Cornell University, Ithaca, NY 14853 phone: (607) 255-9645 On Apr 15, 2013, at 1:36 PM, Aftognosia Aftognosia <[email protected]> wrote: Hello, > > >Is it possible to use MATPOWER in order to implement ACOPF in a radial >distribution system ? > > >Are there any limitations for distribution system? > > >
