关于避雷器的问题

vien · 发表于 2011-1-11 09:33:04

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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。
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：
KILL = 209. ZnO solution by Newton`s method of  3 coupled arresters has failed due to singularity of the Jacobian matrix.  This
is measured by tolerance EPSILN,  which is defined by the floating-point miscellaneous data card. The iteration count is  0, and
the coupled group of arresters can be identified from the knowledge that the first (in order of input) connects bus  "XX0055"  with
bus  "    ". The simulation time is  T = 5.57200000E-02.
把三个电压表移除就可以运行。
如果线路中有重合闸，加上避雷器会出现如下出错信息：
KILL = 212. A Newton solution for  3 coupled nonlinear elements has failed to converge within the iteration limit  MAXZNO = 50.
The current residual is  3.07126887E+00,  which exceeds the sloppy convergence tolerance  EPSTOP = 1.00000000E-01. The first of
the coupled, true, nonlinear elements (in order of data input) is located in row  4 of the nonlinear element table, and it
connects node  "XX0050"  with node  "    ". The final coupled element is in row  6, and the matrix rank is  3. Finally, the
simulation time is  T = 1.26380000E-01. Possible corrective actions include a decrease in the time-step size  DELTAT,  an increase
in the iteration limit  MAXZNO,  an increase in the divergence tolerance  EPSTOP,  and artificial splitting of the subnetwork  in
question by distributed-parameter lines (to reduce the number of coupled elements). In addition, it is possible for the user to
make a solution impossible by unrealistically limiting the Newton corrections.  The user should remember that there can be no
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,
although it can be changed by a"ZINC OXIDE"  special request (columns 57-64, variable  ZLIN(2)).
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。

wangdc · 发表于 2011-1-14 12:12:55

其实就是加上避雷器后不收敛了，原来我仿真时也碰到这个问题了
可以试着把这个参数改大一点
ErrLim= Fitting tolerance in pu
你输入的伏安特性时数据表吧

vien · 发表于 2011-1-14 13:50:33

之前有个加相地间避雷器的模型，我把ErrLim设定成1之后可以运行，但是还是不能加不接地电压表probe branch volt，加了之后还是会出现KILL = 209。
现在新遇到一个极间避雷器和中性点避雷器的模型，什么电压表都不加还是会出错。
还有，避雷器伏安特性从哪查啊？

vien · 发表于 2011-1-14 13:52:16

就是这个模型

vien · 发表于 2011-1-14 13:54:19

模型

vien · 发表于 2011-1-14 13:58:54

回复 2# wangdc
您好，谢谢您的回答。我看到您在ATP这个版块的很多回复，您现在对这个软件的掌握应该不错吧？有问题还请您多指教。

wangdc · 发表于 2011-1-14 15:12:29

呵呵
也是现学现卖
大家多交流才能不断进步
伏安特性就是在模块中characteristic填写或采用文件输入指数

vien · 发表于 2011-1-18 11:23:52

回复 8# laoshouren

当然是查到的，伏安特性不太好查，最好能找到你采用避雷器厂家给定的参数，对照 i=p*(u/Vref)^q这个公式算出来，然后填进去。

maomaowhu · 发表于 2011-2-13 10:19:32

哦，学习了

bubugao · 发表于 2014-3-8 18:54:57

学习了，正好用上

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