[1]刘宪林,李艳军..计及水力系统详细模型的多机系统暂态稳定计算[J].郑州大学学报(工学版),2004,25(04):90-93.[doi:10.3969/j.issn.1671-6833.2004.04.023]
　LIU Xianlin,Li Yanjun.Transient stability calculation of multi-machine system taking into account the detailed model of hydraulic system[J].Journal of Zhengzhou University (Engineering Science),2004,25(04):90-93.[doi:10.3969/j.issn.1671-6833.2004.04.023]
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计及水力系统详细模型的多机系统暂态稳定计算()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
25
期数:
2004年04期
页码:
90-93
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Transient stability calculation of multi-machine system taking into account the detailed model of hydraulic system
作者:
刘宪林; 李艳军.
郑州大学电气工程学院,河南,郑州,450002, 郑州大学电气工程学院,河南,郑州,450002
Author(s):
LIU Xianlin; Li Yanjun
关键词:
水力系统;  模型;  多机系统;  暂态稳定
Keywords:
DOI:
10.3969/j.issn.1671-6833.2004.04.023
文献标志码:
A
摘要:
对水力系统模型的简化,是制约电力系统暂态过程仿真质量提高的主要原因之一. 建立了用于电力系统暂态稳定分析的复杂水力系统不同形式的数学模型,包括引水系统刚性水击模型和弹性水击模型以及水轮机线性化模型和非线性模型.通过对具有复杂水力系统的多机系统在大扰动下的过渡过程进行计算,分析了引水系统和水轮机不同模型对暂态稳定计算结果的影响.结果表明:水力系统的不同模型对多机系统暂态稳定计算的初始阶段影响不大;刚性水击模型与弹性水击模型下的变化曲线较接近;非线性水轮机模型与线性水轮机模型下的变化曲线在暂态过程中后期差别较大;简化模型过于简单,计算结果误差较大.
Abstract:
The simplification of hydraulic system model is one of the main reasons restricting the improvement of the simulation quality of transient process of power system. Different forms of mathematical models of complex hydraulic systems for transient stability analysis of power systems are established, including rigid hammer models and elastic hammer models of water diversion systems, and linearization models and nonlinear models of hydro turbines. By calculating the transition process of multi-machine system with complex hydraulic system under large disturbance, the influence of different models of water diversion system and turbine on the transient stability calculation results is analyzed. The results show that different models of hydraulic system have little influence on the initial stage of transient stability calculation of multi-machine system. The rigid hammer model is close to the change curve under the elastic hammer model. The change curves under the nonlinear turbine model and the linear turbine model are quite different in the later stage of the transient process. The simplified model is too simple, and the calculation result error is large.

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更新日期/Last Update: 1900-01-01