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saber仿真中遇到的問題

The initial point "dc" has been created with a different invocation of Saber.
*** ERROR "ALG_NO_SOLUTION" *** Cannot find nonlinear system solution.
*** ERROR "ALG_SINGULAR_JACOBIAN" *** Singular Jacobian matrix.
Some possible causes for a singular Jacobian matrix:
- Model operating outside of its intended region of operation.
- Node/subsystem with no connection to the reference (floating).
- Current loops (voltage sources/inductors in parallel).
- Missing equation and/or missing variable reference.

Potential problem variables/equations:

Partial results at time=286.08311238567u were written to the initial point "tr".
這是什么意思啊,謝謝了
execution time= 11.1 sec.
messages given: 2 errors
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2005-10-21 13:06
關(guān)掉軟件,重新運(yùn)行即可。注意要選擇 首先運(yùn)行DC分析
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lih97
LV.1
3
2006-01-09 17:30
有可能是沒有先DC分析造成的,有可能是系統(tǒng)算法出現(xiàn)不收斂,在saber里做比較復(fù)雜的仿真經(jīng)常會遇到,方法可以改變一下里面的一些迭代參數(shù),在help里有提到。還有的情況可能就是給你電路中某個(gè)電容加個(gè) 初始值就可以了
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2011-12-11 13:11
@yangjing1981
關(guān)掉軟件,重新運(yùn)行即可。注意要選擇首先運(yùn)行DC分析

我也遇到類似的問題了,按照你的方法還是不行啊。

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2011-12-15 16:40
@luotianmei1987
我也遇到類似的問題了,按照你的方法還是不行啊。
這是不收斂了,按給出的那4點(diǎn)提示排查吧。不收斂的原因比較多,需要具體分析。
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cheng111
LV.11
6
2012-01-08 13:30
Some possible causes for a singular Jacobian matrix:
- Model operating outside of its intended region of operation.
- Node/subsystem with no connection to the reference (floating).
- Current loops (voltage sources/inductors in parallel).
- Missing equation and/or missing variable reference.

以上就是問題的解決辦法提示
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