| 基于机组虚拟分解－聚合的直接暂态稳定分析新方法 |
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| 引用本文： | 卢卫星,方明,倪以信,陈寿孙. 基于机组虚拟分解－聚合的直接暂态稳定分析新方法[J]. 清华大学学报(自然科学版), 1995, 0(4) |
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| 作者姓名： | 卢卫星 方明 倪以信 陈寿孙 |
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| 作者单位： | 清华大学电机工程及应用电子技术系 |
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| 摘 要： | 提出了一种基于机组虚拟分解－聚合的直接暂态稳定分析新方法，该法根据系统受扰后的机组运行轨迹进行机组虚拟分解和聚合，不需识别临界机群，而能可靠获得单机无穷大等值系统参数。该法可适应复杂操作序列，如继电保护相继动作、重合闸及切机等，并可适应多机群失稳模式。在经典模型下，其精度和逐步积分法（ＳＢＳ法）相一致，并仍保持快捷的分析速度，具有良好的在线应用前景。
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| 关 键 词： | 暂态稳定；分解和聚合；电力系统 |
New method of transient stability analysis by unit decomposition and aggregation |
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| Lu Weixing, Fang Ming, Ni Yixin, Chen Shousun. New method of transient stability analysis by unit decomposition and aggregation[J]. Journal of Tsinghua University(Science and Technology), 1995, 0(4) |
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| Authors: | Lu Weixing Fang Ming Ni Yixin Chen Shousun |
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| Abstract: | A new method is proposed in this paper to speed up transient stability analysisby combining the disturbance trajectory of the dividual machines to decompose and aggregate'units. In such a method,without identifying the cluster of critical machines the multimachinepower system can be reliably reduced into an equivalent two-machine system, then transformed to an one-machine-infinite-bus (OMIB) system. Using corresponding criterion toOMIB the multimachine system transient stability can be assessed. This method can also apply to complex operating sequence such as protective relay sequence action, automatic reclosing, generator-shedding and so on. The simulation tests show that the method proposed contributes to significantly speed up the transient stability analysis while fully preserving accuracy. |
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| Keywords: | transient stability decomposition and aggregation power system |
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