Thank you for your reply. I have another question, if one side of a DC line is an end of the network, is it possible that breaking the DC line to two dummy generators would isolate that bus and cause an error? Should I add another parallel AC line with large resistance to prevent islanding? Thanks,
Zhouxing Subject: Re: toggle_dcline From: [email protected] Date: Mon, 30 Jan 2012 16:50:37 -0500 To: [email protected] I believe that is the error you receive if you attempt to toggle "off" an extension that has never been toggled "on". In other words, it looks like DC lines are already off. --Ray On Jan 30, 2012, at 4:43 PM, Zhouxing Hu <[email protected]> wrote: Dear Dr. Zimmerman, I want to temporally disable dc lines in the testing case 9 by using "mpc = toggle_dcline(mpc, 'off');" and then receive following errors: ??? Reference to non-existent field 'userfcn'. Error in ==> remove_userfcn at 42 n = length(mpc.userfcn.(stage)); Error in ==> toggle_dcline at 86 mpc = remove_userfcn(mpc, 'savecase', @userfcn_dcline_savecase); Error in ==> t_case9_dcline at 87 mpc = toggle_dcline(mpc, 'off'); Could you please help me diagnose this? Thanks, Zhouxing Hu Center for Energy Studies Wichita State University
