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仿真出现错误提示为:0 m4 Z5 R x: @% e7 C( e; p5 W
You lose, fella. The EMTP logic has detected an error condition, and is now going to terminate program execution. The following" {7 l2 I! O8 h0 r. u
message summarizes the circumstances leading to this situation. Where an otherwise-unidentified data card is referred to, or where6 A- h9 g4 Q" r {4 y
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: A& y9 l3 M, a3 _
is generally the last one printed out prior to this termination message. But possibly this last-read card has not yet been: @9 u0 V2 z1 ]( E$ S
displayed, so a copy follows:3 X' I! a, y( L0 b0 W: ~
" "* `+ a0 _+ Q$ a1 P; ]
KILL code number Overlay number Nearby statement number! s5 a3 N( P9 s8 |
212 18 3522% ]3 |4 o# ]# f. B- H( D
KILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50.+ o$ `; Y% s2 `3 |, m$ X
The current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of* |. U% z6 K0 U" t9 @4 c
the coupled, true, nonlinear elements (in order of data input) is located in row 1 of the nonlinear element table, and it W4 B) T$ r8 x
connects node "XX0026" with node "VTB ". The final coupled element is in row 3, and the matrix rank is 3. Finally, the. H" _2 i! r2 ~, L I: [1 S. L
simulation time is T = 2.70500000E-06. Possible corrective actions include a decrease in the time-step size DELTAT, an increase" O1 v8 ?5 Y. p! \& @* o
in the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in, }2 }( C" B7 K; |. Y0 H& p
question by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to/ D$ ]/ J# G/ u/ m' g/ l
make a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no0 e: B; t+ N x& u3 S( u
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, : D' o- @7 b* @ v; Z5 \3 h6 talthough it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). $ @# C! |6 u0 _9 u4 ^# S. r1 j------------------------------------------------------------------------------------------------------------------------------------ + |5 p% l, j% xERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ Y* q1 ~( a1 O" h
ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ERROR/ 3 h3 G- J' p: G4 | n: q- O------------------------------------------------------------------------------------------------------------------------------------ ' C$ V) _ v) p. K( J% [$ [- q8 ?( s) o% Z2 A8 F: F
Actual List Sizes for the preceding solution follow. 05-Jan-14 19:31:31 M! v) l1 U- N& p. C( R; \
Size 1-10: 37 46 25 1 156 9 30 16298 3 18 ! ^+ ]1 V5 T' x& P" B ^6 { Size 11-20: 0 12 -9999 -9999 3511 0 0 0 23 0' J% E/ s7 B3 ~5 J$ ^ P* M
Size 21-30: 55 0 30 3 -9999 9 -9999 1976 -9999 0" }. a0 e! u# n& Y
Seconds for overlays 1-5 : 0.039 0.000 0.039 -- (CP: Wait; Real)2 c; T! ^" j3 ]! [1 F, D! ?8 \+ }8 _( d* `
Seconds for overlays 6-11 : 0.039 0.000 0.0399 @# A ^' o8 g! e+ t9 g
Seconds for overlays 12-15 : 0.000 0.000 0.000/ y3 ]3 [6 v) Z' _" ]
Seconds for time-step loop : 0.000 0.000 0.0002 {0 ]' I, h. w
Seconds after DELTAT-loop : 0.000 0.000 0.000 8 H/ e- _8 b8 o8 {4 D) r --------------------------- ! t5 L3 D9 r! u Totals : 0.078 0.000 0.0781 A( T. n1 D. m
o6 T4 v' Y+ B' h2 [
仿真为雷击线路:4 Q4 t, y' c% _2 l! Q , p0 B1 T' ] D/ e# i1 ] # F3 i5 G2 L+ B6 ~# k5 J# K/ k仿真设置为' P$ P0 \6 u/ k; R! c! I* S' R& C 4 j, q6 R- Q& l# O/ t6 y; O& s+ A8 F+ X& E) d" x6 U9 Q; P
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. ) g: O4 |4 a+ O; o6 h" lThe current residual is 5.15845719E+01, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. ( l; B, \: @3 ~# Q% g! Z" ?0 E
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