Actually i wanted to run a program that will place a certain amount of reactive power in every Bus and will calculate the corresponding power loss. But you are telling that for case14 as it has just 5 generators so i cant place reactive power in all of them, isnt it?? if so then really bad luck for me. Hope you have then some way to do this. Waiting to hear from you. Thanks
On Wed, Aug 17, 2016 at 9:14 PM, Ray Zimmerman <[email protected]> wrote: > I think what you meant to do was something like the following … > > define_constants; > mpc = loadcase('case14'); > gen_idx = 8; > bus_idx = find(mpc.gen(gen_idx, GEN_BUS) == mpc.bus(:, BUS_I)); > mpc.bus(bus_idx, BUS_TYPE) = PQ; > mpc.gen(gen_idx, QG) = 50; > results = runpf(mpc); > > … except that case14 has only 5 generators, so you’ll have to set get_idx > to something between 1 and 5. > > Ray > > > > > > On Aug 17, 2016, at 10:08 AM, siddique tomal <[email protected]> > wrote: > > > > Thanks but i got just new problem.. > > > > > > define_constants; > > mpc=loadcase(case14); > > mpc.gen(8,PV)=PQ; > > mpc.gen(8,QG)=50; > > rslt=runpf(mpc); > > > > > > > > and they are showing the following error: > > > > Subscript indices must either be real positive integers or logicals. > > > > Error in ext2int (line 175) > > gs = ( mpc.gen(:, GEN_STATUS) > 0 & ... TCL MERGE ERROR ( > 08/17/2016 11:14:46 ): "extra characters after close-quote" > OutmailID: 120695916, List: 'matpower-l', MemberID: 76173427 > SCRIPT: "gen status > > Error in runpf (line 131) > mpc = ext2int(mpc); > > > > > what is the wrong here going on ?? > > > On Wed, Aug 17, 2016 > at 7:54 PM, Ray Zimmerman <[email protected] <mailto:[email protected]>> > wrote: > define_constants; > mpc.bus(BUS_NO, BUS_TYPE) = PQ; > > > >> On > Aug 17, 2016, at 9:47 AM, siddique tomal <[email protected] > <mailto:[email protected]>> wrote: >> >> Thank you Sir but still > having problem. >> For setting a bus as a PQ bus i command the following: > >> >> mpc.gen(BUS_NO,GEN_STATUS)= 1; >> >> is that command is correct for > assigning a bus as a PQ? >> if so then i also have tried with that command > like following: >> >>> define_constants; >>> mpc=loadcase(case14); >>> > mpc.gen(BUS_NO,GEN_STATUS)=1; >>> mpc.gen(BUS_NO,QG)=45; >>> > result=runpf(mpc); >> >> but still no change.. >> >> On Wed, Aug 17, 2016 > at 7:35 PM, Ray Zimmerman <[email protected] <mailto:[email protected]>> > wrote: >> When running a power flow, the reactive injection of a generator > at a PV bus is an output, solved by the power flow, not an input. If you > want to set the reactive power injection as an input you have to make the > bus a PQ bus and allow the voltage to deviate from the setpoint. >> >> > Ray >> >> >>> On Aug 16, 2016, at 8:48 PM, siddique tomal < > [email protected] <mailto:[email protected]>> wrote: >>> > >>> Dear Sir, >>> define_constants; >>> mpc=loadcase(case14); >>> > mpc.gen(BUS_NO,QG)=45; >>> result=runpf(mpc); >>> >>> After running this > whenever i run the command losses=sum(real(get_losses(result))) it just > shows the same result of power losses as before injecting the reactive > power. >>> >>> What's the problem here i'm missing? Please need your help. > >> >> > > --Apple-Mail=_C902470B-BB6B-4FAC-95F7-EE3FE09A5F85 > Content-Transfer-Encoding: quoted-printable Content-Type: text/html; > charset="utf-8" <html><head><meta http-equiv="Content-Type" > content="text/html charset=utf-8"></head><body style="word-wrap: > break-word; -webkit-nbsp-mode: space; -webkit-line-break: > after-white-space;" class="">I think what you meant to do was something > like the following …<div class=""><br class=""></div><div > class=""><div class=""><font face="Courier" > class="">define_constants;</font></div><div > class=""><font face="Courier" class="">mpc = > loadcase('case14');</font></div><div > class=""><font face="Courier" class="">gen_idx = 8;</font></div><div > class=""><font face="Courier" class="">bus_idx = find(mpc.gen(gen_idx, > GEN_BUS) == mpc.bus(:, BUS_I));</font></div><div class=""><font > face="Courier" class="">mpc.bus(bus_idx, BUS_TYPE) = PQ;</font></div><div > class=""><font face="Courier" class="">mpc.gen(gen_idx, QG) = > 50;</font></div><div class=""><font face="Courier" class="">results = > runpf(mpc);</font></div><div class=""><br class=""></div><div class="">… > except that case14 has only 5 generators, so you’ll have to set <font > face="Courier" class="">get_idx</font> to something between 1 and > 5.</div><div class=""><br class=""></div><div class=""> > Ray</div><div class=""><br class=""></div><div class=""><br > class=""></div><div class=""><br class=""></div><div class=""><br > class=""><div><blockquote type="cite" class=""><div class="">On Aug 17, > 2016, at 10:08 AM, siddique tomal <<a href="mailto:siddiquetomal93@ > gmail.com" class="">[email protected]</a>> wrote:</div><br > class="Apple-interchange-newline"><div class=""><div dir="ltr" > class="">Thanks but i got just new problem..<div class=""><br > class=""></div><div class=""><br class=""><b class=""><i > class="">define_constants;<br class=""></i></b><div class=""><b class=""><i > class="">mpc=loadcase(case14);</i></b></div><div class=""><b class=""><i > class="">mpc.gen(8,PV)=PQ;</i></b></div><div class=""><b class=""><i > class="">mpc.gen(8,QG)=50;</i></b></div><div class=""><b class=""><i > class="">rslt=runpf(mpc);</i></b></div></div><div class=""><b class=""><i > class=""><br class=""></i></b></div><div class=""><b class=""><i > class=""><br class=""></i></b></div><div class=""><b class=""><i > class=""><br class=""></i></b></div><div class="">and they are showing the > following error:</div><div class=""><br class=""></div><div class=""><div > class=""><font color="#ff0000" class="">Subscript indices must either be > real positive integers or logicals.</font></div><div class=""><font > color="#ff0000" class=""><br class=""></font></div><div class=""><font > color="#ff0000" class="">Error in ext2int (line 175)</font></div><div > class=""><font color="#ff0000" class=""> > gs = ( mpc.gen(:, GEN_STATUS) > 0 & ..." > gen status</font></div><div class=""><font color="#ff0000" class=""><br > class=""></font></div><div class=""><font color="#ff0000" class="">Error in > runpf (line 131)</font></div><div class=""><font color="#ff0000" > class="">mpc = ext2int(mpc);</font></div></div><div class=""><b > class=""><i class=""><br class=""></i></b></div><div class=""><b > class=""><i class=""><br class=""></i></b></div><div class=""><b > class=""><i class=""><br class=""></i></b></div><div class="">what is the > wrong here going on ??<br class=""><br class=""></div></div><div > class="gmail_extra"><br class=""><div class="gmail_quote">On Wed, Aug 17, > 2016 at 7:54 PM, Ray Zimmerman <span dir="ltr" class=""><<a href="mailto: > [email protected]" target="_blank" class="">[email protected]</a>></span> > wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 > .8ex;border-left:1px #ccc solid;padding-left:1ex"><div > style="word-wrap:break-word" class=""><font face="Courier" > class="">define_constants;</font><div class=""><font face="Courier" > class="">mpc.bus(BUS_NO, BUS_TYPE) = PQ;</font></div><div class=""><div > class="h5"><div class=""><br class=""></div><div class=""><br > class=""></div><div class=""><br class=""><div class=""><blockquote > type="cite" class=""><div class="">On Aug 17, 2016, at 9:47 AM, siddique > tomal <<a href="mailto:[email protected]"; target="_blank" > class="">[email protected]</a>> wrote:</div><br class=""><div > class=""><div dir="ltr" class="">Thank you Sir but still having > problem.<div class="">For setting a bus as a PQ bus i command the > following:</div><div class=""><br class=""></div><div class=""><b > class=""><i class="">mpc.gen(BUS_NO,GEN_STATUS)= 1;</i></b></div><div > class=""><br class=""></div><div class="">is that command is correct for > assigning a bus as a PQ?<br class="">if so then i also have tried with that > command like following:<br class=""><br class=""><blockquote type="cite" > style="color:rgb(80,0,80);font-size:12.8px" class=""><div dir="ltr" > class=""><div class=""><b class=""><i > class="">define_constants;</i></b></div><div > class=""><b class=""><i class="">mpc=loadcase(case14);</i></b></div><div > class=""><b class=""><i > class="">mpc.gen(BUS_NO,GEN_STATUS)=1;</i></b></div><div > class=""><b class=""><i class="">mpc.gen(BUS_NO,QG)=45;</i></b></div><div > class=""><b class=""><i > class="">result=runpf(mpc);</i></b></div></div></blockquote></div><div > class=""><div dir="ltr" class=""><div class="">but still no > change..</div></div></div></div><div class="gmail_extra"><br > class=""><div class="gmail_quote">On Wed, Aug 17, 2016 at 7:35 PM, Ray > Zimmerman <span dir="ltr" class=""><<a href="mailto:[email protected]"; > target="_blank" class="">[email protected]</a>></span> wrote:<br > class=""><blockquote class="gmail_quote" style="margin:0 0 0 > .8ex;border-left:1px #ccc solid;padding-left:1ex"><div > style="word-wrap:break-word" class=""><div class="">When running a power > flow, the reactive injection of a generator at a PV bus is an <b > class="">output</b>, solved by the power flow, not an input. If you want to > set the reactive power injection as an input you have to make the bus a PQ > bus and allow the voltage to deviate from the setpoint.</div><span > class=""><font color="#888888" class=""><div class=""><br > class=""></div><div class=""> Ray</div></font></span><div > class=""><div class=""><div class=""><br class=""></div><br class=""><div > class=""><blockquote type="cite" class=""><div class="">On Aug 16, 2016, at > 8:48 PM, siddique tomal <<a href="mailto:[email protected]"; > target="_blank" class="">[email protected]</a>> > wrote:</div><br class=""><div class=""><div dir="ltr" class=""><div > class="">Dear Sir,</div><div class=""><b class=""><i > class="">define_constants;</i></b></div><div class=""><b class=""><i > class="">mpc=loadcase(case14);</i></b></div><div class=""><b class=""><i > class="">mpc.gen(BUS_NO,QG)=45;</i></b></div><div class=""><b class=""><i > class="">result=runpf(mpc);</i></b></div><div class=""><b class=""><i > class=""><br class=""></i></b></div><div class="">After running this > whenever i run the command <i style="font-weight:bold" > class="">losses=sum(real(get_losses(res<wbr class="">ult)))</i> > it just shows the same result of power losses as before injecting the > reactive power.<br class=""><br class="">What's the problem here i'm > missing? Please need your help.</div></div> > </div></blockquote></div><br class=""></div></div></div></blockquote></div><br > class=""></div> > </div></blockquote></div><br > class=""></div></div></div></div></blockquote></div><br > class=""></div> > </div></blockquote></div><br class=""></div></div></body></html>
