Hi Golam, I think Matpower does not fit for solving radial distribution system, because 'runpf' uses Newton method to solve nonlinear functions, which involves formulating Jacobian matrix and the inverse of such matrix. However, the parameters of distribution system may cause such matrix to singular, therefore Matpower doesn't fit for distribution system.
You may solve load flow of distribution system by Sweep method. See reference: A robust three phase power flow algorithm for radial distribution systems, Electric Power Systems Research, 50 (1999) 227-236. Blessings, Wenlei Bai Electrical Engineering, Department of Electrical & Computer Engineering Baylor University, One Bear Place #97356 Waco, TX 76798-7356 (254)405-3320 [email protected] ________________________________ From: [email protected] <[email protected]> on behalf of Sk. Md. Golam Mostafa <[email protected]> Sent: Wednesday, March 1, 2017 5:27:12 PM To: MATPOWER discussion forum Subject: Command for Radial Test systems Hello Dear, I am a Master's student and bigginer with matpower. I sucessfully run power flow for Meshed network using IEEE-14,30,39 bus test system and get the losses but failed to run pf using radial systems like 22, 33 radial test system from different reference because it does not become convergent. I used the following command: >> mpc=loadcase(case) >> mpopt=mpoption('pf.alg','NR','pf.tol',1e-4,'verbose',0); >> mpopt=mpoption('pf.alg','GS','pf.tol',1e-4,'verbose',0); >> mpopt=mpoption('pf.alg','FDXB','pf.tol',1e-4,'verbose',0); >> mpopt=mpoption('pf.alg','FDBX','pf.tol',1e-4,'verbose',0); >> results=runpf(mpc.mpopt) please help me for run radial test system. Thanks in advance. Sincerely Yours Sk. Md. Golam Mostafa
