考虑耦合影响的数智化电缆系统的系统动力学安全评估方法
作者:
作者单位:

(1.上海电力大学能源电力科创中心,上海 200082;2.上海电力大学电气工程学院,上海 200090)

通讯作者:

谢敬东(1968—),男,博士,教授,主要从事电力市场建设及其监管、智能微电网和配电网安全分析等研究;E?mail:xie_jd@shiep.edu.cn

中图分类号:

TM726.4

基金项目:

国家自然科学基金(51507099)


Dynamics safety evaluation method for digitally intelligent cable systems considering coupling effects
Author:
Affiliation:

(1.Science Innovation Center of Energy and Electric Power, Shanghai University of Electric Power, Shanghai 200082, China; 2.College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China)

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    摘要:

    近年来,数智化电缆线路系统中安装了不同类型的电气设备在线监测装置,但这些在线监测装置相对独立,采集到的运行数据未得到综合分析,难以起到综合防范安全事故的效果。为此,提出一套考虑耦合影响的数智化电缆系统动力学安全评估模型。首先,选取数智化电缆线路系统的电气和非电气关键特征参量并进行分类;其次,建立安全评估因果关系图,设计模型功能,分析并搭建电缆系统动力学流图;再次,应用相互作用矩阵确定变量权重和建立最优模型训练参数,分别构建不同类型变量与设备之间故障概率函数;然后,依据串联模型实现对整个电缆系统的安全评估,并将其转化为系统动力学方程,搭建数智化电缆系统安全评估模型;最后,以某地区电缆线路为例评估其安全状态。结果表明,本模型处理复杂电缆系统时考虑了多变量之间的耦合影响,能够实现对数智化电缆的全面评估,有效保证其运行安全。

    Abstract:

    In recent years, various types of online monitoring devices have been installed in the digitally intelligent cable line system for electrical equipment. However, these online monitoring devices are relatively independent, and the monitored operation data is not comprehensively analyzed. As a result, it becomes challenging to effectively prevent safety accidents. To address this issue, a dynamics safety evaluation model for digitally intelligent cable systems considering coupling effects is proposed. Firstly, the electrical and non-electrical key characteristic parameters of the digitally intelligent cable line system are selected and classified. Secondly, a causality diagram that can be used for safety evaluation is established, and model functions are designed to analyze and build a dynamics flow diagram for the cable system. To determine the variable weights, an interaction matrix is employed, allowing for the establishment of optimal model training parameters. Failure probability functions are constructed for different types of variables and devices. Additionally, the safety evaluation of the entire cable system is achieved through a tandem model, which is transformed into a system dynamics equation to create a safety evaluation model for the digitally intelligent cable system. Finally, the safety state of a regional cable line is evaluated. The results demonstrate that this model effectively handles complex cable systems by considering the coupling effects between multiple variables. It enables a comprehensive safety evaluation of digitally intelligent cables and ensures their reliable operation.

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引用本文

谢敬东,石 全,关博文,等.考虑耦合影响的数智化电缆系统的系统动力学安全评估方法[J].电力科学与技术学报,2024,39(6):101-112,173.
XIE Jingdong, SHI Quan, GUAN Bowen, et al. Dynamics safety evaluation method for digitally intelligent cable systems considering coupling effects[J]. Journal of Electric Power Science and Technology,2024,39(6):101-112,173.

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  • 在线发布日期: 2025-02-14
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