* A( \* z- V$ O. {- ]% u& M仿真出现错误提示为: V9 z% D. V; b; R
You lose, fella. The EMTP logic has detected an error condition, and is now going to terminate program execution. The following- v8 v3 C' ^2 L/ W
message summarizes the circumstances leading to this situation. Where an otherwise-unidentified data card is referred to, or where+ V2 @6 Z" H! k; a
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 card3 s O! |4 P& J: J' w1 a/ L8 z
is generally the last one printed out prior to this termination message. But possibly this last-read card has not yet been - r5 C# K" E0 A: {9 i" Wdisplayed, so a copy follows:% E- J1 z @& v- f
" " * T* Y: m5 s( P2 ]7 z' v: Z2 T KILL code number Overlay number Nearby statement number 4 L; i9 M' f8 A; e5 c 212 18 3522 - {( F7 P0 ~7 l9 @( z: K3 _9 T2 XKILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50.8 _7 W2 N& n t
The current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of , y5 r- \7 m" N' ~9 Y. y4 fthe coupled, true, nonlinear elements (in order of data input) is located in row 1 of the nonlinear element table, and it' r9 g6 w3 R$ r8 q# z5 i
connects node "XX0026" with node "VTB ". The final coupled element is in row 3, and the matrix rank is 3. Finally, the # T7 W6 V5 @" J+ ~% Isimulation time is T = 2.70500000E-06. Possible corrective actions include a decrease in the time-step size DELTAT, an increase * Y6 k& q- q5 O* R0 B) {) z' Din the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in. [7 p) z& V0 h% J- x2 k2 |! w# ^
question by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to ' W b* J* B7 G# p2 Nmake a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no 9 B2 Y% C2 f, i- {( \( ysolution if his bound on arrester voltage is less than the true solution voltage. The bound has a default value of 1.5 per unit,, q3 m. G6 g5 s% K5 a. [
although it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). 2 M' K. Y6 {8 Z1 C! ^ i4 M4 b0 C+ _------------------------------------------------------------------------------------------------------------------------------------ * Q) A A- R b" z" s! yERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/% F% Z5 G0 M" ~; s: W
ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/+ T4 [, m2 c8 G; \; k) h
------------------------------------------------------------------------------------------------------------------------------------ # i7 e T! I$ @2 s5 Y- Y5 }0 {; F ) G$ Y( I* A# Q% M3 u) L# T& TActual List Sizes for the preceding solution follow. 05-Jan-14 19:31:31 ) ~: ~& }8 ~. t4 q( Q; P Size 1-10: 37 46 25 1 156 9 30 16298 3 18) s& S7 F$ R1 I. }: l% L
Size 11-20: 0 12 -9999 -9999 3511 0 0 0 23 0 + M0 X5 h$ a6 L' } Size 21-30: 55 0 30 3 -9999 9 -9999 1976 -9999 0, r( I* m9 A6 I" D/ @
Seconds for overlays 1-5 : 0.039 0.000 0.039 -- (CP: Wait; Real)8 R9 R x y. f6 q
Seconds for overlays 6-11 : 0.039 0.000 0.039: O$ q4 H, f) }% m4 T
Seconds for overlays 12-15 : 0.000 0.000 0.000 * ?$ k! ^: ? F0 z9 ZSeconds for time-step loop : 0.000 0.000 0.000: h! }& C3 _( J9 k9 V
Seconds after DELTAT-loop : 0.000 0.000 0.0009 @( |* g G+ _, @% n
---------------------------; E G. i3 o* H6 [/ k6 w9 y
Totals : 0.078 0.000 0.078/ f m# S# h( d4 }
7 }, B, O# S7 j7 z9 V/ F* i% h% v
仿真为雷击线路: ~) p$ L) Y' T! b# {& _: K" L 6 o' S9 @; s0 j) I( s( W3 q. X+ {8 i( W4 n& ?
仿真设置为/ M2 J9 h0 x ]. K & ?% J' d1 `$ f 1 r# K! [" O: w3 d, [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.) K8 ^, c2 Z2 D8 d/ p# ]; L
The current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. ' ^8 R, R# R) ?& V1 I) ^) O& z1 k
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