| 电力系统在线动态安全分析新方法 |
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| 引用本文： | 李明节,王世缨. 电力系统在线动态安全分析新方法[J]. 清华大学学报(自然科学版), 1993, 0(1) |
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| 作者姓名： | 李明节 王世缨 |
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| 作者单位： | 电机工程与应用电子技术系(李明节),电机工程与应用电子技术系(王世缨) |
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| 摘 要： | 在线动态安全分析的核心是快速暂稳分析。现有的快速暂稳分析方法有些在计算速度上已能满足在线的需要,但由于存在分析失效问题,会给整个安全分析结果带来误判断等不可靠的情况。作者通过对快速暂稳算法失效情况的研究,揭示了这一类方法失效的机理,并找到了相应的失效判据,提出了一种新的安全分析功能方案与在线动态安全分析方法。大量的分析、计算,验证了文中所提方法的正确性与有效性。
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| 关 键 词： | 动态安全分析 快速暂稳计算 直接法 临界切除时间 多摆失稳 |
A new method for on-line dynamic security assessment in power systems |
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| Li Mingjie,Wang Shiying. A new method for on-line dynamic security assessment in power systems[J]. Journal of Tsinghua University(Science and Technology), 1993, 0(1) |
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| Authors: | Li Mingjie Wang Shiying |
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| Affiliation: | Li Mingjie,Wang Shiying Department of Electrical Engineering |
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| Abstract: | Fast transient stability analysis method is the core of the online dynamic security analysis. Some of existing fast transient stability analysis methods have been meeting the speed demand of real-time calculation. However, dynamic security assessment will sometimes lead to wrong results due to the "failure cases" of these methods. In this paper, through the analysis, the mechanism of the failure cases of these fast transient stability analysis methods is revealed and the corresponding criterion for the failure cases is also found. Thus, a new security scheme and an on-line dynamic securityassessment method is,proposed. A large number of analytical and numerical results have verified that the proposed method is effective and correct. |
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| Keywords: | dynamic security analysis fast transient stability calculation direct methods critical clearing time unstable in multi-swing |
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