$ F8 k6 ?- W5 |$ ?: J仿真出现错误提示为:% D/ i3 _2 j! ^( W! y Q# f
You lose, fella. The EMTP logic has detected an error condition, and is now going to terminate program execution. The following6 J( U( ]) i; z, u
message summarizes the circumstances leading to this situation. Where an otherwise-unidentified data card is referred to, or where ; @& A0 r9 k& H; P: qthe "last" card is mentioned, it is the most recently read card of the input data that is meant. The 80-column image of this card % @5 ] _5 o( a* Tis generally the last one printed out prior to this termination message. But possibly this last-read card has not yet been ! ]/ `0 i0 z* f3 z. Bdisplayed, so a copy follows:$ X7 i/ n* q) c" p- n% m
" ". u" i+ B$ [: Q' O" h
KILL code number Overlay number Nearby statement number 9 R# j" X- J' W j4 q) J! F 212 18 3522 : N( G! ]' X( E: G* [% ~/ k- TKILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50. , D" v: x9 k! I5 CThe current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of) h( M+ c) J8 J( f
the coupled, true, nonlinear elements (in order of data input) is located in row 1 of the nonlinear element table, and it 7 @ ?1 w. ]! x- jconnects node "XX0026" with node "VTB ". The final coupled element is in row 3, and the matrix rank is 3. Finally, the 3 d" H5 ` I+ ?. |% q# c! x/ j" Y) nsimulation time is T = 2.70500000E-06. Possible corrective actions include a decrease in the time-step size DELTAT, an increase $ `% E9 n* W7 [1 `1 I. lin the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in 1 F9 L( c3 R4 C$ f2 \8 M7 w t8 aquestion by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to - N0 ~& D4 @1 a, l0 B* Bmake a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no; ?$ r# A( g* \" V2 w0 d4 j
solution if his bound on arrester voltage is less than the true solution voltage. The bound has a default value of 1.5 per unit, 0 f a" [4 d: } q( palthough it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). ' g& U9 z E7 b- L) {: J0 m------------------------------------------------------------------------------------------------------------------------------------ / C1 S6 h: v; ]2 uERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/" G2 {* g7 Q9 r( {7 Z; R+ x5 F1 m
ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ " ]' u2 ?7 G0 N$ s& t5 U------------------------------------------------------------------------------------------------------------------------------------ 6 I1 ?$ i B8 U% L+ U : V+ ]9 [3 _$ a! ^Actual List Sizes for the preceding solution follow. 05-Jan-14 19:31:319 i1 x) W0 C" T0 [6 _
Size 1-10: 37 46 25 1 156 9 30 16298 3 18; c5 i7 w( G, A7 [# d
Size 11-20: 0 12 -9999 -9999 3511 0 0 0 23 0 4 X/ t; R. ]3 o Size 21-30: 55 0 30 3 -9999 9 -9999 1976 -9999 01 z% F R( ~( r6 U$ d% H7 A
Seconds for overlays 1-5 : 0.039 0.000 0.039 -- (CP: Wait; Real)6 S+ K( l t2 ]7 L3 Z& ]' L8 ~
Seconds for overlays 6-11 : 0.039 0.000 0.039 1 M6 j" L0 \2 g# ESeconds for overlays 12-15 : 0.000 0.000 0.000! b- p, t) [! Y
Seconds for time-step loop : 0.000 0.000 0.000 : A; Q+ A: o# ]9 G& b1 m; cSeconds after DELTAT-loop : 0.000 0.000 0.000 + `% b) R+ L) ?1 c3 Y! C, R3 U ---------------------------2 t+ [( }4 R& H1 E( r/ w, T
Totals : 0.078 0.000 0.078 & K5 ?6 c/ I" Y/ t- O' \: g6 h2 O1 ~+ W' G6 c4 J( \
仿真为雷击线路:0 _3 p' O' W2 x: C4 y 6 q' b7 J" C0 I0 r. u4 \ 8 u1 k% @' S; U- |) N& X3 C仿真设置为 # g/ [+ W- @% Q; y , I- ?/ ~" I1 K3 t) }! u2 ~* v4 N$ r! a) F% d& C
求高人解答
KILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50. * ]3 a2 s0 f! u# ]; b- l& X, x" aThe current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. # `7 }7 Z9 o) e/ |7 h4 @, b+ M8 o
说的是避雷器的问题,伏安特性曲线的问题,采用指数进行拟合,有时候会不收敛,一般修改伏安特性曲线参数,或者减小仿真步长,也可以降低收敛的最小值