扩展等面积准则(EEAC)的算法实现及仿真验证

of   Extended Equal Area Criterion(EEAC)
Abstract
With the rapid  development of power industry, the size of the power system
is increasingly expanding. And the transmission capacity of the system is
approaching the limit of  stability. Margin of  stability  is getting smaller
and smaller, and thus of great significance to the research of the transient
stability  of power system.  This graduation project  first  introduced
step-by-step(SBS) integration method, the direct method and the Extended
Equal Area Criterion(EEAC), they are widely used for the study of power 源￥自%六:维;论-文'网=www.lwfree.cn
system transient  stability  analysis(TSA). By contrast, highlights
advantage of the EEAC, and then focuses on the structure, principle and
characteristics of the EEAC. Secondly, the application of EEAC are used
to do limit parameter calculation on designed complex situation of on
machine infinite bus(OMIB) system.  The obtained results compared with the
SBS method, the simulation and error analysis confirmed both the accuracy
and rapidity of the EEAC,  and found out that “for any time varying system,
we can pide the transient process into some permanent segments and then
complete the transient analysis.”  Finally,  though  the analysis and
exploration of the simulation results, briefly summarized the influence
of  time-varying factors  to  stability analysis, and  put forward  outlook and
plans for deeper research.
Keywords    Transient Stability Analysis, Step-by-Step, Direct Method, Extended Equal Area Criterion, time-varying factor

1   绪论  .  1
1.1   课题背景——电力系统稳定问题的概述    1
1.2  EEAC与直接法的比较    2
1.3   本文主要内容   4
2  EEAC方法内容    6
2.1  EEAC简介  .  6
2.2   三种EEAC算法的互补和协调  .  7
2.3   时变因素影响稳定评估的机理  8
3   仿真实现  .  10
3.1   仿真系统设计   10
3.2  EEAC法求取临界参数   11
3.3  SBS法求取临界参数  .  14
3.4   仿真结果    17
4   结果分析  .  23 源￥自%六:维;论-文'网=www.lwfree.cn
4.1   仿真结果简要分析  .  23 扩展等面积准则(EEAC)的算法实现及仿真验证:http://www.lwfree.cn/zidonghua/20170610/8956.html
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