| 基于OMIB的孤立稳定域现象研究 |
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| 引用本文： | 郭琦,赵晋泉,张伯明.基于OMIB的孤立稳定域现象研究[J].电力系统自动化,2005,29(19):14-18,44. |
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| 作者姓名： | 郭琦 赵晋泉 张伯明 |
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| 作者单位： | 清华大学电机系电力系统国家重点实验室，清华大学电机系电力系统国家重点实验室，清华大学电机系电力系统国家重点实验室 北京市 100084，北京市 100084，北京市 100084 |
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| 基金项目： | 国家重点基础研究发展计划资助项目(973项目)(2004CB217904)~~ |
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| 摘 要： | 针对实际系统暂态稳定评估中遇到的“孤立稳定域”现象,用经典单机无穷大母线(OMIB)系统进行了详细的稳定分析。分别采用等面积法则、势能界面(PEBS)直接法和稳定域分析法研究这一现象的原因。在不考虑系统阻尼的情况下,这一现象具有周期性。极限切除时间指标在这种情形下会失灵。文中推导并给出了自治OMIB系统多摆切除,下一摆失稳的极限切除角计算公式。
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| 关 键 词： | 电力系统 暂态稳定 单机无穷大系统 极限切除时间 孤立稳定域 |
| 收稿时间： | 2005-05-10 |
| 修稿时间： | 2005-05-10 |
A Study on Isolated Stability Domain Phenomenon in Transient Stability Assessment Based on OMIB |
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| Guo Qi;Zhao JinQuan;Zhang BaiMing.A Study on Isolated Stability Domain Phenomenon in Transient Stability Assessment Based on OMIB[J].Automation of Electric Power Systems,2005,29(19):14-18,44. |
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| Authors: | Guo Qi;Zhao JinQuan;Zhang BaiMing |
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| Abstract: | The phenomena of isolated stability domain (ISD) found in transient stability assessment of a real power system are analyzed with the classical one-machine infinite-bus (OMIB) system. The mechanism of this phenomenon in OMIB is studied with equal area criterion (EAC), PEBS direct method and stability region analysis, respectively This phenomenon takes on periodicity when the damping of the generator is ignored and the index of critical clearing time (CCT) is invalidated in this case The analytical expression for critical clearing angle of multiple swing clearing and unstable next swing is derived |
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| Keywords: | power system transient stability OMIB critical clearing time isolated stability domain |
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