我搭建了一个利用避雷器限制投切并联电容器组操作过电压的模型，未加避雷器就ok，但是加上避雷器后运行总是出错。 $ h6 o1 D1 ]3 G: `+ M比如加上避雷器后，如果电容器上有量相间电压的电压表，就会出现下面的出错信息： * @/ o8 n; |0 [9 nKILL = 209. ZnO solution by Newton`s method of 3 coupled arresters has failed due to singularity of the Jacobian matrix. This * c8 d ^( Y$ A# H: R! b+ D+ Cis measured by tolerance EPSILN, which is defined by the floating-point miscellaneous data card. The iteration count is 0, and # y) C: o1 W, c- E* jthe coupled group of arresters can be identified from the knowledge that the first (in order of input) connects bus "XX0055" with 9 x9 Z2 {% t4 w6 V" Y/ V+ Z- Sbus " ". The simulation time is T = 5.57200000E-02.. v3 I6 X' W+ B; C$ v* B
把三个电压表移除就可以运行。- f; h n( `5 u3 m
如果线路中有重合闸，加上避雷器会出现如下出错信息：( H! T+ ]: o, Y
KILL = 212. A Newton solution for 3 coupled nonlinear elements has failed to converge within the iteration limit MAXZNO = 50. : }& X6 x5 J( w* \- NThe current residual is 3.07126887E+00, which exceeds the sloppy convergence tolerance EPSTOP = 1.00000000E-01. The first of! B1 S- Q# U; q/ K7 O
the coupled, true, nonlinear elements (in order of data input) is located in row 4 of the nonlinear element table, and it " p5 A5 N- D* L- E& `) Mconnects node "XX0050" with node " ". The final coupled element is in row 6, and the matrix rank is 3. Finally, the* I4 |, y; }& z- z
simulation time is T = 1.26380000E-01. Possible corrective actions include a decrease in the time-step size DELTAT, an increase 1 m5 p! l) U" J# A7 j. q( G$ bin the iteration limit MAXZNO, an increase in the divergence tolerance EPSTOP, and artificial splitting of the subnetwork in1 W/ X# W5 u+ ~; ~2 V9 C, |
question by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to & K2 O' }4 ^6 }8 _make a solution impossible by unrealistically limiting the Newton corrections. The user should remember that there can be no 5 C. {3 w5 c3 A* n2 vsolution if his bound on arrester voltage is less than the true solution voltage. The bound has a default value of 1.5 per unit, 1 N2 a8 P) h* `" `8 ?: s5 h/ Balthough it can be changed by a"ZINC OXIDE" special request (columns 57-64, variable ZLIN(2)). ( j/ `5 ~. k3 ]5 ]4 P% p1 j已经试了很久，还是找不到解决办法，实在没辙了，请各位帮忙，万分感谢。
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发表于 2011-1-11 09:33:04
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