| 抑制轴系扭振的改进型电力系统稳定器 |
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| 引用本文： | 吴俊勇,程时杰,陈德树.抑制轴系扭振的改进型电力系统稳定器[J].华中科技大学学报(自然科学版),1996(Z2). |
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| 作者姓名： | 吴俊勇 程时杰 陈德树 |
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| 作者单位： | 华中理工大学电力工程系 |
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| 基金项目： | “八五”重大科技攻关课题资助 |
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| 摘 要： | 提出了抑制轴系扭振的改进型电力系统稳定器的设计原则——分离模态设计原则，并将其应用于一典型次同步谐振（ＳＳＲ）问题，以改进经典的电力系统稳定器（ＰＳＳ）．特征根分析和大干扰下的非线性仿真结果表明，改进后的ＰＳＳ不但能很好地抑制系统的低频振荡，而且能有效地抑制轴系扭振．
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| 关 键 词： | 电力系统稳定器 次同步谐振 模态阻尼 |
An Improved Power System Stabilizer for Suppressing Shaft Torsional Vibration |
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| Wu Junyong Dept. of Elec. Eng.,HUST,Wuhan ,China. Cheng Shijie Chen Deshu.An Improved Power System Stabilizer for Suppressing Shaft Torsional Vibration[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1996(Z2). |
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| Authors: | Wu Junyong Dept of Elec Eng HUST Wuhan China Cheng Shijie Chen Deshu |
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| Institution: | Wu Junyong Dept. of Elec. Eng.,HUST,Wuhan 430074,China. Cheng Shijie Chen Deshu |
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| Abstract: | The design principle of an improved PSS capable of suppressing the shaft torsional vibration is proposed. It has been applied to an actual and typical SSR case. The choice of the feedback signals is investigated and the modal rotating speeds are chosen as supplementary feedback control signals. An analysis of the characteristic roots and nonlinear simulation under large disturbance show that the improved PSS can effectively suppress not only the lower frequency oscillation of the system, but also the shaft torsional vibration. |
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| Keywords: | power system stabilizer (PSS) subsynchronous resonance (SSR) modal damping |
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