Dear Ahmad,
It seemed to come from the isolation of the generating unit at bus 8. --- Original Message --- >From : "ahmad rezaee"<[email protected]> To : [email protected] Date : 2013/03/29 금요일 오후 1:32:46 Subject : no power flow result in outage of line 14 Dear Dr Zimmerman In IEEE 14 bus test system, when I apply outage of line 14 (between busses 7-8) and try to run power flow, the matpower messages: "matrix is close to singularity" .Can you explain me why it is so? Kind Regards Ahmad Hwachang SONG (Ph.D.) Associate Professor Dept. of Electrical and Information Engineering Seoul Nat'l Univ. of Science and Technology (SeoulTech) Republic of Korea Phone: +82-2-970-6403 Mobile: +82-10-7322-4605 Fax: +82-2-978-2754
