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为提高系统鲁棒性并且增强对网络诱导时滞的可容许能力，提出一种新型电力系统负荷频率控制（load frequency control,LFC）的时滞相关鲁棒H_∞控制设计方法。首先，基于PI型LFC控制策略，建立了考虑时滞的新能源并网多区域新型电力系统LFC模型。其次，使用增广型Lyapunov-Krasovskii(L-K)泛函和自由矩阵不等式估计技术，建立了电力系统LFC的时滞相关鲁棒H_∞稳定和镇定条件。最后，以新能源并网的单区域和三区域LFC系统为例，验证了所提方法的有效性和优越性。
Abstract：A novel delay-dependent robust control H_∞design method is proposed for load frequency control(LFC)in power systems,aimed at enhancing system robustness and improving tolerance to network-induced delays.Firstly,a PI-type LFC control strategy is employed to establish an LFC model for multi-area power systems that incorporates renewable energy integration while considering time delays. Secondly,using an augmented Lyapunov-Krasovskii(L-K) functional and free matrix inequality estimation techniques,we formulate delay-dependent robust H_∞ stability and stabilization conditions for power system LFC.Finally,the effectiveness and superiority of the proposed method are verified through case studies of onearea and three-area LFC systems with renewable energy integration.
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基本信息:
DOI：10.20097/j.cnki.issn1007-9904.2025.08.004
中图分类号:TM73;TP273
引用信息:
[1]范春玲,练红海,刘泳志等.新型电力系统LFC的时滞相关鲁棒H_∞控制[J].山东电力技术,2025,52(08):36-44.DOI:10.20097/j.cnki.issn1007-9904.2025.08.004.
基金信息:
湖南省自然科学基金项目(2024JJ8012); 湖南省教育厅科学研究项目(23B0947、22C0796); 湖南电气职院科研基金(2025ZK03、2025ZK06)~~