582_L10 - EE 580 Lecture 10 Monday Apr 3 2000 Topics for...

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Unformatted text preview: EE 580 - Lecture 10 Monday Apr 3, 2000 Topics for Today: Internal workings of ATP- T- lines ATP Calculation Engine- Matrix Formulations CB Restrike, Reignition when switching Ca ATP Simulation Pointer for the day: When simulating a distributed parameter transmission line, traveling waves and their reflections might be of interest. If you wish to exactly match your calculations with the simulation, define the integration timestep At to be a value that divides an integer number of times into the propagation time I: (tau). This ensures that reflections will occur at an exact increment of At. Transmission Lines ( 224C 0 SrsS For a single-phase distributed parameter line, use the Clarke 1-phase line. f‘ c tau-kc Linc. Mo频 Pasting from the ATPDraw Help Menu: Name : Card : BRANCH Data : R/l= ”IA: 23‘ ‘-.!’. 1: \ ILINE= Node : From= To: LINEZT_1 ~ Distributed parameters, sigle phase Resistance pr. length in [Ohm/length] %_ c ILINE=0: A=inductance L' in [mH/length] if Kopt.=0 ’ A=L' in [ohm/length] if Xopt.=power frequency. ILINE=1: A=Modal surge impedance in [ohm] Z=sqrt(L'/C') 't’ IziNE=2: A=Modal surge impedance in [ohm] z=sqrt(L'/C') ILINE=0: B=capacitance C' in [aF/length] if Copt.=0 ‘g’ B=C' in [aMho/length] if Copt.=power frequency. ILINE=1: B=propagation velocity in [length/sec.] v=1/sqrt(C'*L') ffffifizg? B=modal travel time in [sec] T=sqrt(L'*C')*length length of line (>0 for transposed lines) Takes values from 0 to 2 Kopt. and Capt. arE-aagfin menu: ATPlSettings/Simulation. Start node of line End node of line Only branch voltage output is reliable. ILINE 1 («am .‘. A: Z¢:\@ “£7700be EQMS. g :5 ca 5 m€§(A meovérs MOT Hut/R WE " . 1N Pomefl $¥5(EMS 454 V Gd LOO 1C CLAY NQOE //______ H 2) MODE Owe hoé: \IOH’aSc5 Emezx-sz / v-e fi- vw-r—v-z-w—v-vr‘r mE w+~NT Sufi \ro LTAQE, ; MéK (spare/mask: +0 Y\€U~ 0x: Cuwe3n’vs Mfged'eér ‘yn-‘ro “Hat Mers ,..,,,,_,-—.—— (ASci +2) 7 LAS'MS VngAYCREC§ _-J:V.\ ”nger ELASSVEWNS . C3 ow (QC) _ C on ver+ 561M663 1% ”GHQ incaas e in ————-—-—-——-"F ———->——> \l ”1" vs'\ . . a-AXQJXL VT On Sewn: 334%- (3'0” when :6 Opens, ...
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