| 互联电力系统未知机理低频振荡分析 |
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| 引用本文： | 贺仁睦,韩志勇,周密,徐衍会,马进.互联电力系统未知机理低频振荡分析[J].华北电力大学学报,2009,36(1). |
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| 作者姓名： | 贺仁睦 韩志勇 周密 徐衍会 马进 |
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| 作者单位： | 华北电力大学,电力系统保护与动态安全监控教育部重点实验室,北京,102206 |
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| 基金项目： | 国家自然科学基金,江西省电力公司科技项目 |
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| 摘 要： | 近年来,我国互联电力系统多次发生低频振荡。针对南方互联电网"5.13"功率振荡,首先采用特征值分析法详细分析南方互联电网低频振荡特性,得出主要振荡模式以及发电机组参与因子和模态分布图。其次利用仿真软件PSS/E,对强相关机组的切机、三相短路故障以及原动机周期扰动分别进行时域仿真,并与实际振荡曲线进行对比。结果表明,南方电网此次功率振荡不是因为强相关机组电气侧故障,采用负阻尼机理也不能很好地解释,其产生原因可能是发电机组受原动机周期扰动有关。
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| 关 键 词： | 南方电网 低频振荡 特征值分析法 PSS/E |
Analysis on unknown mechanism low frequency oscillation of interconnected power system |
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| HE Ren-mu,HAN Zhi-yong,ZHOU Mi,XU Yan-hui,MA Jin.Analysis on unknown mechanism low frequency oscillation of interconnected power system[J].Journal of North China Electric Power University,2009,36(1). |
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| Authors: | HE Ren-mu HAN Zhi-yong ZHOU Mi XU Yan-hui MA Jin |
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| Affiliation: | Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Under Ministry of Education;North China Electric Power University;Beijing 102206;China |
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| Abstract: | In recent years,low frequency oscillation phenomenon occurred for many times in China interconnected power system,for example low frequency oscillation of China southern power grid on 05-13-2005.The oscillation characteristic of "5.13" low frequency oscillation is analyzed in detail by using the eigenvalue analysis method at first.The participation factors and mode shape diagrams of generators related to the inter-area oscillations are figured out.Secondly,three representative kinds of faults and disturbanc... |
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| Keywords: | PSS/E |
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