If we have some lines in an interconnected power system with low X/R ratio, we may have some problem with coverage through Newton-Raphson method. How can we solve such power flow problem as we can not use forward-backward method like distribution radial system?
M.Reza Salehizadeh Electrical Engineering PhD Student Science & Research Branch Islamic Azad University Tehran-Iran --- On Tue, 10/6/09, Naresh Acharya <[email protected]> wrote: From: Naresh Acharya <[email protected]> Subject: Re: Re: how to run radial distribution load flow To: "MATPOWER discussion forum" <[email protected]> Date: Tuesday, October 6, 2009, 9:07 PM Due to low X/R ratio of the distribution network, the load flow methods based on Gauss Siedel and Newton Raphson may not always converges. For a radial system with only one voltage controlled bus (which is the source substation), many simple algorithms exist in literature which are not difficult to code. Thanks, Naresh Acharya Iowa State University On Tue, Oct 6, 2009 at 12:16 PM, kanwardeep singh <[email protected]> wrote: As Dr. Zimmerman has said at least one generator is required at slack bus to run load flow, one can assume the substation bus where power is incoming as slack bus and place an equivelent generator at that bus to run distribution load flow. Best of Luck. Kanwardeep Singh On Tue, 06 Oct 2009 21:45:28 +0530 wrote >You will need at least a single generator at the slack bus. --Ray ZimmermanSenior Research Associate211 Warren Hall, Cornell University, Ithaca, NY 14853phone: (607) 255-9645 On Oct 6, 2009, at 1:54 AM, Kanishk Chaudhary wrote:On Tue, Oct 6, 2009 at 11:11 AM, Neeraj Gupta wrote: ok tell me what level of knowledge you have. Kanishk Chaudhary > sir, > please guid me regarding how to run radial distribution load flow by > mat > power. > > Kanishk Chaudhary > BTech electrical final student > IET lucknow(indian) > -- ************************* Neeraj Gupta Research Scholar, P&C(EE) Y6104097 IIT Kanpur ************************ Sir,i m final year EE student doing project on capacitor placement on radial distribution system. i m tying to run load flow on matpower on default newton PF. I took data from Baran n wu reconfiguration 32 us data ......there is problem while running the load flow as data priscibe as in case9 is not same what i put for 32bus data....as what i take bus one as slake bus remaining PQ bus .....the runpf is having error because there is no generator data in what i enter there is only BUS AND LINE data....so please sir help to this problem. Kanishk Btech 4th year EE studentIET lucknow
