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发表于 2010-3-19 23:48:03
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回复 1# yongzhe578 2 X+ c1 i; @. f: ~6 P; i
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) q/ v. w: c/ _6 [ "热稳极限" is a kind of conductor property. You should be able to find it from conductor manuals. Try to not exceeding a conductor's "热稳极限" by running a normal power flow analysis and any other contingency analysis. In simple, don't burn your conductor./ u* x, K% x; N+ `% a3 Q U8 c; |+ N
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"静稳极限" could be calculated by ignoring any dynamic models like exiter, governor, stabilizer, etc. Typically this value could be calculated without doing a real time simulation and then it could be provided by an on-line analysis software.
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"动稳极限", similar to "静稳极限", with control devices like exciter modeled. Both "静稳极限" and "动稳极限" apply to small disturbance. 4 H) `5 y. h2 J- \( U
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"暂稳极限" is used to make sure the system will come back to previous stable state or changed stable state after a big disturbance like a fault, generator disconnection, reclosing. It needs a real time simulation and it is not possible for an on-line analysis software to provide such analysis currently. 4 f; `: O- c; v; v# f3 |0 D T; L
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Most popular stability analysis software should be able to provide these analysis for you. For theoretical understanding, I would recommend you to read page 133 of professor Ni-Yi-Xin's book "Dynamic Power System Theory and Analysis" which could be found here:
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"倪以信-动态电力系统的理论和分析.高清晰PDF"
4 P, U3 y, g, z! Q+ b8 b https://tech.cepsc.com/viewthread.php?tid=39421&extra=&highlight=%B6%AF%CC%AC%B5%E7%C1%A6%CF%B5%CD%B3%B5%C4%C0%ED%C2%DB%BA%CD%B7%D6%CE%F6&page=1 |
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