. L( A2 N, d1 \8 z# P仿真出现错误提示为: ; O- ~5 P# O1 J8 Y0 p& Z0 LYou lose, fella. The EMTP logic has detected an error condition, and is now going to terminate program execution. The following+ g1 V6 R3 i) t: K
message summarizes the circumstances leading to this situation. Where an otherwise-unidentified data card is referred to, or where+ P! S( a. Q$ b7 J0 z# A5 f+ S
the "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 & G: v. ^" P; m& q5 u0 Ris generally the last one printed out prior to this termination message. But possibly this last-read card has not yet been % d* b2 X; b4 z* u) d, Adisplayed, so a copy follows: 9 J3 m2 E) k! ~8 P1 n$ n3 v3 B " "4 u* |, D% t6 h. o, A
KILL code number Overlay number Nearby statement number 2 i. I+ l- t9 n9 h 212 18 3522$ V& K" y& A* z7 ^. C& X: e
KILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50. ' u' O( J3 [; m$ `! H9 x9 T, s- OThe current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of# ]& v4 Y. t% ^) `
the coupled, true, nonlinear elements (in order of data input) is located in row 1 of the nonlinear element table, and it 1 c5 D' k1 d. W6 u; V/ l% Lconnects node "XX0026" with node "VTB ". The final coupled element is in row 3, and the matrix rank is 3. Finally, the% o: Q7 y# [; u- J- o
simulation time is T = 2.70500000E-06. Possible corrective actions include a decrease in the time-step size DELTAT, an increase 6 p8 {4 `4 N n9 E p2 vin the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in 1 K0 ]8 A5 o8 x/ A" q0 J- zquestion by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to / c6 S) ~4 j% U) q4 |$ Imake a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no7 y7 k, ], O8 ]& _0 x
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, ; L' l' `1 F% v3 halthough it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). * ?. U6 Z# N' \8 Z2 {3 T------------------------------------------------------------------------------------------------------------------------------------$ T4 I9 Y2 [) _) W1 y4 t
ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ 8 n5 \ ^6 u/ L% j" i8 l% QERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/) [6 k; _% q$ I" h& n
------------------------------------------------------------------------------------------------------------------------------------3 v/ B9 D1 E1 I8 J$ t
7 Q/ m. P2 h5 z3 \7 H, n' a# kActual List Sizes for the preceding solution follow. 05-Jan-14 19:31:31' w3 k3 O6 e: g6 ]$ }
Size 1-10: 37 46 25 1 156 9 30 16298 3 18 6 k: B* U1 M) G# j& @ Size 11-20: 0 12 -9999 -9999 3511 0 0 0 23 0) W0 f: j/ l- P
Size 21-30: 55 0 30 3 -9999 9 -9999 1976 -9999 0 + k( J6 ]* _' V/ D, O1 c& ^" CSeconds for overlays 1-5 : 0.039 0.000 0.039 -- (CP: Wait; Real)4 g$ I9 d, i+ R0 l! p9 Y% V. T: z
Seconds for overlays 6-11 : 0.039 0.000 0.0399 s- S5 K: q8 t& \0 g2 a- m- I d& N! s
Seconds for overlays 12-15 : 0.000 0.000 0.000' S/ ]8 z, Z9 K7 Q7 @) ?+ W( I( p
Seconds for time-step loop : 0.000 0.000 0.000 5 p5 ^* n5 d0 x' lSeconds after DELTAT-loop : 0.000 0.000 0.000 - j5 a& U2 B8 p* b% N, _' V ---------------------------" z1 k5 E* M4 K- `& u- g. g
Totals : 0.078 0.000 0.0787 \& \6 Q3 \0 X* K( A% Q8 x w' o
' E. Q, w' v9 W2 D
仿真为雷击线路:4 [, u* f2 y& ~( F+ c
. ?/ G4 `3 l% r1 l) |9 P0 v
- g) q- _# L$ @# T' d# g9 ]仿真设置为 5 P' F9 i5 k1 g. s3 E
! L7 l' y4 g& s& D) M' [0 E
KILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50. 4 _; b9 N3 b5 D' X2 N" j) PThe current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. 9 L" V/ b2 N- G9 g- Y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