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发表于 2013-2-24 23:43:40
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4 _- V- S6 P7 ] r& O6 F9 tName : LINEZT_3 - Distributed parameters (Clarke) 3 phase. Transposed+ v# y+ S4 d# s+ k$ D0 Z
Card : BRANCH- w. g& M+ g' V3 i* K
Data: Values are entered in the two independent modes of the system, here called + and 0." y; }2 |! c& F7 F, P i
R/l= Resistance pr. length in [Ohm/m]" X7 i* E; ~- E8 M1 C# r7 V
The lossless part can be described in three ways- F* o. A3 P* W7 J. u z
0. Inductance L' in [mH/m] if Xopt=0 or in [ohm/m] if Xopt=power frequency: }4 Q# N( c7 i L" u3 I
Capacitance C' in [uF/m] if Copt=0 or in [uMho/m] if Copt=power frequency
& Z: H# y( g2 L O! D& C0 ^$ s 1. Modal surge impedance in [ohms]; Z=sqrt(L'/C')( e3 T# S, l' {- A3 J3 b
Modal propagation velocity in [m/s]; v=1/sqrt(L'*C')
?6 Y' [3 Y6 f: l$ z' y 2. Modal surge impedance in [ohms]
: g6 O. ~: Y& L' e* e* N Modal propagation time in ; T=sqrt(L'*C')*length
' E: P# V1 G) } Xopt. and Copt. are set in menu: ATP|Settings/Simulation.
& { g& d+ L. g. j4 Z8 b* h) s The user can choose conductance modeling G=0 (the usual case) and G=R*C/L (distortionless)
) b0 o2 e/ u, g8 W length= length of line in [m]
; o$ L: g: i/ b6 e( Y7 t# Q* ]3 f# S9 qNode : IN1= Start node. Letter 'A', 'B' or 'C'1 T+ n! W6 [& }# x( f3 g9 f
is added to nodename for node 1, 2 and 3.7 f! q. q0 W! ?: i& \* M7 W; }
OUT1= End node. Letter 'A', 'B' or 'C'
* i; n/ A) v; [0 v# A, ~# @2 z is added to nodename for node 1, 2 and 3.
4 Q0 n% y: ]2 b# iOnly branch voltage output is reliable.
8 q3 Q# ?0 k+ d" HRuleBook: IV.D.1 |
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