| 大区电网互联对电力系统动态稳定性的影响 |
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| 引用本文： | 朱方,赵红光,刘增煌,寇惠珍.大区电网互联对电力系统动态稳定性的影响[J].中国电机工程学报,2007,27(1):1-7. |
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| 作者姓名： | 朱方 赵红光 刘增煌 寇惠珍 |
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| 作者单位： | 1. 中国电力科学研究院,北京市,海淀区,100085
2. 国家电力调度通信中心,北京市,宣武区,100031 |
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| 基金项目： | 致谢刘取先生参与了本文的讨论,特此表示感谢. |
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| 摘 要： | 研究了由区域电网间互联形成的互联电网动态稳定性的特点、低频振荡产生的原因，提出了互联系统动态稳定性的控制策略，并提出以下结论：励磁系统中自动电压调节器的负阻尼作用仍然是互联电网发生低频振荡的主要原因；PSS 已被证明是阻尼低频振荡的最有效、经济的装置，对本地振荡模式和区域间振荡模式均有很好的效果；直流调制、可控串补及可控静补对改善系统阻尼可有重要作用，今后应对这些领域进行更多的研究。
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| 关 键 词： | 互联电网 动态稳定性 区域间振荡模式 本地模式 低频振荡 电力系统稳定器 |
| 文章编号： | 0258-8013（2007）01-0001-07 |
| 收稿时间： | 2006-05-21 |
| 修稿时间： | 2006年5月21日 |
The Influence of Large Power Grid Interconnected on Power System Dynamic Stability |
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| ZHU Fang,ZHAO Hong-guang,LIU Zeng-huang,KOU Hui-zhen.The Influence of Large Power Grid Interconnected on Power System Dynamic Stability[J].Proceedings of the CSEE,2007,27(1):1-7. |
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| Authors: | ZHU Fang ZHAO Hong-guang LIU Zeng-huang KOU Hui-zhen |
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| Abstract: | This paper is focused on the new issues of low frequency oscillation brought about by area grid interconnection. The characteristics of inter-area oscillation mode are discussed. Strategies on improving the dynamic stability of interconnected grids are summarized. The negative damping effect caused by automatic voltage regulator (AVR) in the Excitation System is still the main cause for low frequency oscillation in interconnected power system. PSS has been proved to be the most economical and effective equipment for damping low frequency oscillation, which can perform well to both the local mode and the inter-area one. HVDC modulation, thyristor controlled series capacitor(TCSC) and controllable SVC may contribute a lot to improve power system damping. Therefore, more researches are needed in these fields. |
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| Keywords: | interconnected grid dynamic stability inter-area oscillation mode local mode low frequency oscillation PSS HVDC modulation thyristor controlled series capacitor |
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