--- On Fri, 8/10/10, raghu guniganti <[email protected]> wrote:
From: raghu guniganti <[email protected]> Subject: CHECK MY PROCEDURE FOR TCPAR/TCPST To: "Ray Zimmerman" <[email protected]> Date: Friday, 8 October, 2010, 5:43 AM Hello sir. I found that we don't hav any code available for FACTS devices in MATPOWER. so. i hav tried to include the effect of TCPAR /TCPST by modifying the YBUS. the procedure is as follows... I found the OPF of 30-bus system without any FACTS devices. then i hav noted the lines in which active power losses are more. now i calculated the angle at sending end and receiving end of the lines. ex: at line4 sending end angle=tan inverse ( Qat sending end / Pat sending end) =10.2 like the same calculated angle at receiving end = 10.6 now the diff. b/w these two is 0.4 now what hav i done is assuming a t/f with turns ratio 1. and the rectangle form of angle 0.4 is -6.981*10 ^ -3. and assuming the r=0 because of modeling of t/f. I hav added -6.981*10 ^ -3 to line X value which gives the resultent X as 0.033 . now i run the opf of this system which gives the cost as 576.58 , total P&Q losses as 2.858,13.31. previously they are 576.89,2.86,13.33. What i want to know is this procedure is correct.Other wise plz help me to find the right procedure. If u hav any code for TCPAR/TCPST plz forward me sir. waiting 4 ur response sir....... thanking u sir.
