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arXiv 1609.01211eess.SYcs.SY
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将AC功率流嵌入复平面 Part II:一种用于电压崩溃分析的可靠框架

Embedding AC Power Flow in the Complex Plane Part II: A Reliable Framework for Voltage Collapse Analysis

Sina S. Baghsorkhi, Sergey P. Suetin

AI总结:

本文提出一种可靠框架,通过复平面嵌入AC功率流,准确评估电压崩溃边界,区分真解与非存在解,适用于小网络和启发式方法对比。

摘要:

本文第二部分阐述了所提出功率流分析框架获取网络稳定运行点真实解的独特能力。它解释了获取真实解对准确评估电压崩溃边界的重要性。该特性使框架区别于所有迭代和非迭代启发式方法,如在7节点网络中使用牛顿-拉夫森法及其变种、半正定和基于矩的松弛方法。该框架的另一个重要特性是:当存在真实解时获取,否则声明其不存在。这在小网络中得到验证,并与启发式方法进行比较。本文还探讨了该框架如何检测由控制器达到极限引发的分支,从而引发电压崩溃。

英文摘要:

Part II of this paper elaborates on the unique capability of the proposed power flow analysis framework to obtain the true solution corresponding to the stable operating point of a network. It explains the significance of obtaining the true solution for an accurate assessment of the voltage collapse margin. This feature distinguishes the framework from all iterative and non-iterative heuristic approaches as demonstrated in the context of a 7-bus network with Newton-Raphson, its variants and semidefinite and moment-based relaxations of power flow. Another important feature of this framework is that it obtains the true solution when it exists and declares its non-existence otherwise. This is demonstrated in the context of small networks and in comparison with heuristic approaches. This paper also explores how the proposed framework detects a limit-induced bifurcation where a network controller reaching its limit can initiate voltage collapse.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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