| 引用本文: | 周思宇,韩杨,杨平,王丛岭,张逸.考虑监测点建设紧迫性的电压暂降监测装置多目标优化模型[J].电力自动化设备,2022,42(2): |
| ZHOU Siyu,HAN Yang,YANG Ping,WANG Congling,ZHANG Yi.Multi-objective optimization model of voltage sag monitoring devices considering construction urgency of monitoring nodes[J].Electric Power Automation Equipment,2022,42(2): |
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| 摘要: |
| 为了实现电压暂降监测装置更加精准的布局，确保电网的稳定运行，提出了一种考虑监测点建设紧迫性的电压暂降监测装置多目标优化模型。首先，引入电压暂降幅度和电压暂降频率状态评估指标，建立监测装置建设紧迫性评估模型；然后，综合考虑系统监测点的建设紧迫性，基于电压暂降可观测矩阵，建立最小化建设紧迫性总权重和最小化可观测损失率的多目标优化模型，并引入不满意度评估模型，建立改进帕累托最优前沿的计算模型，分析各相互冲突的目标之间的耦合关系；最后，以一个110 kV以上电压等级的实际输电网为算例，得到其最优布局方案，并与传统优化模型进行比较，证实了所提优化模型的正确性及其实际工程应用价值。 |
| 关键词: 电压暂降 建设紧迫性 可观测损失率 多目标优化 帕累托最优前沿 |
| DOI：10.16081/j.epae.202112011 |
| 分类号:TM715 |
| 基金项目:广东省自然科学基金资助项目(2018A030313494)；新能源电力系统国家重点实验室开放课题项目(LAPS18007) |
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| Multi-objective optimization model of voltage sag monitoring devices considering construction urgency of monitoring nodes |
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ZHOU Siyu1, HAN Yang1,2, YANG Ping1, WANG Congling1, ZHANG Yi3
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1.School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China;2.Guangdong Institute of Electronic and Information Engineering, University of Electronic Science and Technology of China, Dongguan 523808, China;3.College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
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| Abstract: |
| In order to achieve more accurate layout of voltage sag monitoring devices and ensure the stable operation of power grid, a multi-objective optimization model of voltage sag monitoring devices considering the construction urgency of monitoring nodes is proposed. Firstly, the state estimation indexes of voltage sag magnitude and voltage sag frequency are introduced to establish construction urgency evaluation model of monitoring devices. Then, comprehensively considering the construction urgency of monitoring nodes in the power system, a multi-objective optimization model is established based on voltage sag observability matrix with minimizing the total construction urgency weight and the loss rate of observability. An evaluation model of dissatisfactory degree is introduced, and the computational model of modified Pareto optimal front is established to analyze the coupling relationship between conflicting objectives. Finally, a practical transmission network with voltage level above 110 kV is taken as an example to obtain the optimal layout scheme, and the correctness and practical engineering application value of the proposed optimization model are verified by comparison with the traditional optimization model. |
| Key words: voltage sag construction urgency loss rate of observability multi-objective optimization Pareto optimal front |
