| 用李亚普诺夫第二方法分析同步电机自动励磁调节的动态阻尼特性 |
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| 引用本文： | 李先彬,张建华. 用李亚普诺夫第二方法分析同步电机自动励磁调节的动态阻尼特性[J]. 华北电力大学学报(自然科学版), 1988, 0(3) |
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| 作者姓名： | 李先彬 张建华 |
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| 作者单位： | 华北电力学院北京研究生部，华北电力学院北京研究生部 |
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| 摘 要： | 本文采用沿轨线求能量的积分方法,以李亚普诺夫定理的推论形式,定义了阻尼能量函数D(x_0,X)。文章指出,在分析同步电机的自动励碱调节的动态特性时,1,胡尔维茨准则的最后一个不等式△n-1正比于系统的阻尼系数;2,在大振荡情况下,当一个周期的部分时间内系统是负阻尼时,整个系统仍能稳定运行的阻尼条件。对PSS在大振荡时的阻尼效应,文章着重进行了分析。并提出改善的意见。
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| 关 键 词： | 李亚普诺夫方法 同步电机 阻尼特性 |
Analysis of Dynamic Damping Effects for Synchronous Machine Excitation Control System via the "Second Method of Lyapunov" |
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| Abstract: | Damping Energy Function is defined as D (X_0,X)=∫(x_0, x) K(x) x_i dx_(i-1) by integration of energy along its path, in accordance with Lyapunov Theorem. In analysis of the dynamic performance of synchronous machine excitation systems, two points are shown: 1. Among the criteria of Hurwit, △_(n-1) is proportional to the damping coefficients of systems. 2. During a large scale oscillation, the stabilizing condition of damping effect can be derived, though the system is negative damping in part of a period. The damping effect on PSS under large scale oscillation is emphatically discussed and suggestions for improvement are presented. |
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