| 汽轮发电机组轴系扭振平衡位置分析与稳定域估计 |
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| 引用本文： | 傅予力,廖晓昕,江振华,程时杰. 汽轮发电机组轴系扭振平衡位置分析与稳定域估计[J]. 电力系统自动化, 2000, 24(8): 6-9 |
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| 作者姓名： | 傅予力 廖晓昕 江振华 程时杰 |
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| 作者单位： | 1. 华中理工大学控制科学与工程系,武汉,430074
2. 华中理工大学电力系,武汉,430074 |
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| 基金项目： | 国家重点基础研究专项经费资助项目!(G1 9980 2 0 31 9)，国家“九五”攀登项目!(PD95 2 1 90 7) |
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| 摘 要： | 根据汽轮发电机组轴系的简化模型，采用Lyapunov直接法对该非线性系统的平衡位置稳定性进行了定性分析,在参数取于一定范围内时，确定了平衡点的位置，对稳定平衡点,用Lyapunov函数对稳定域进行了估计。这里提出的分析方法是直接针对非线性系统的，因而避免了线性化方法所产生的误差。文中用仿真算例说明了这种分析方法的有效性。
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| 关 键 词： | 轴系扭振； 平衡点； 稳定域 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
EQUILIBRIUM ANALYSIS AND ESTIMATION OF STABLE REGION FOR TURBINE-GENERATOR SHAFT TORSIONAL OSCILLATION |
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| Fu Yuli,Liao Xiaoxin,Jiang Zhenhua,Cheng Shijie. EQUILIBRIUM ANALYSIS AND ESTIMATION OF STABLE REGION FOR TURBINE-GENERATOR SHAFT TORSIONAL OSCILLATION[J]. Automation of Electric Power Systems, 2000, 24(8): 6-9 |
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| Authors: | Fu Yuli Liao Xiaoxin Jiang Zhenhua Cheng Shijie |
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| Abstract: | A novel method is proposed to analyze the stability of turbine-generator including the shaft torsional oscillations.Using the Lyapunov direct method. the analysis of equilibrium points is undertaken on the basis of the original nonlineargenerator shaft model. Therefore, the error caused by linearization is avoided. Also, the stable operation (comparativelyreserved) region of the generator is obtained. A simple example is used to show the effectiveness of the proposed method toanalyze the generator shaft torsional oscillation and to evaluate the stable margin of the oscillation.This project is supported by National Key Basic Research Special Fund of China (No. G1998020319) and 'PanDeng'Project of the National gth #5 Year's Plan' (No. PD9521907). |
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| Keywords: | shaft torsional oscillation: equilibrium point: stable region |
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