| 750 kV线路投运后甘肃电网动态稳定性分析 |
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| 引用本文： | 智勇,王官宏,肖洋,朱方,岳雷,周喜超,晁晖.750 kV线路投运后甘肃电网动态稳定性分析[J].电力系统保护与控制,2011,39(3):114-118. |
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| 作者姓名： | 智勇 王官宏 肖洋 朱方 岳雷 周喜超 晁晖 |
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| 作者单位： | 1.甘肃省电力科学研究院，甘肃 兰州 730050;2.中国电力科学研究院，北京100192 |
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| 摘 要： | 分析了2009年甘肃电网冬大及夏大运行方式下系统的动态稳定性，通过频率小干扰计算发现甘肃陇南电网、河西电网及洛大电网存在局部电网内部及对系统的弱阻尼振荡模式。对存在低频振荡风险的电网进行了深入分析，通过在模式相关机组上配置合适电力系统稳定器(PSS)可以大幅提高系统的阻尼。稳定计算表明，在给出的PSS的配置方案下甘肃全网没有出现低于3%的弱阻尼振荡模式，甘肃电网可以安全稳定运行。提出了励磁系统后续实测建模工作的建议。
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| 关 键 词： | 动态稳定 PSS 振荡模式 电力系统 |
Dynamic stability analysis of Gansu power grid after 750kV lines was put into operation |
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| ZHI Yong ,WANG Guan-hong ,XIAO Yang ,ZHU Fang ,YUE Lei ,ZHOU Xi-chao ,CHAO Hui.Dynamic stability analysis of Gansu power grid after 750kV lines was put into operation[J].Power System Protection and Control,2011,39(3):114-118. |
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| Authors: | ZHI Yong WANG Guan-hong XIAO Yang ZHU Fang YUE Lei ZHOU Xi-chao CHAO Hui |
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| Affiliation: | ZHI Yong 1,WANG Guan-hong 2,XIAO Yang 2,ZHU Fang 2,YUE Lei 2,ZHOU Xi-chao 1,CHAO Hui 2(1. Gansu Electric Power Research Institute,Lanzhou 730050,China,2. China Electric Power Research Institute,Beijing 100192,China) |
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| Abstract: | The dynamic stability under the typical cases of winter heavy load mode and summer heavy load mode in 2009 is analyzed.By using frequency small signal disturbance calculation,it is found that there is weak damping mode in local oscillation and inter-area oscillation respectively in Longnan Power Grid,Hexi Power Grid and Luoda Power Grid.After analyzing the power grid with the risk of low frequency oscillation,it points out that the PSS installed on those units related to the mode as aforesaid can significan... |
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| Keywords: | dynamic stability power system stabilizer oscillation mode power system |
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