用固定时间分数阶滑模控制器抑制电力系统中的混沌

Q3 Energy
Abdul-basset A. AL-HUSSEİN, Fadhil RAHMA TAHİR
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引用次数: 0

摘要

本文的目的是研究严重影响电力系统可靠安全运行的不希望有的混沌振荡。利用现代非线性分析方法,研究了一个基准三总线非线性电力系统模型的动力学行为,其中利用李雅普诺夫指数谱、分岔图、功率谱密度和双相干来研究电力系统中的混沌振荡。分析表明,关键参数值的存在可能会将电力系统推向不稳定区域,并可能使系统面临母线电压崩溃、角度发散或停电。为了消除混沌振荡,采用分数阶固定时间滑模控制器在设计者可以预先确定的有限时间内对电力系统进行控制。李雅普诺夫定理已被用于证明受控电力系统的稳定性。结果证实了所提出的控制算法的优越性、鲁棒性和有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quenching chaos in a power system using fixed-time fractional-order sliding mode controller
The aim of this paper is to study the unwanted chaotic oscillation that can severely affect the reliable and safe operation of electrical power systems. The dynamical behavior of a benchmark three-bus nonlinear electrical power system model is explored using modern nonlinear analysis methods, where the Lyapunov exponents spectrum, bifurcation diagram, power spectral density and bicoherence are used to investigate the chaotic oscillation in the power system. The analysis shows the existence of critical parameter values that may drive the power system to an unstable region and can expose the system to bus voltage collapse and angle divergence or blackout. To eliminate the chaotic oscillation, a fractional-order fixed time sliding mode controller has been used to control the power system in a finite time that can be predetermined by the designer. The Lyapunov theorem has been used to prove the stability of the controlled power system. The results confirm the superiority, robustness, and effectiveness of the suggested control algorithm.
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来源期刊
Journal of Energy Systems
Journal of Energy Systems Environmental Science-Management, Monitoring, Policy and Law
CiteScore
1.60
自引率
0.00%
发文量
29
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