基于实时温度场反演的 10 kV 电缆线路模块化数字孪生建模方法

IF 4.4 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
High Voltage Pub Date : 2024-07-15 DOI:10.1049/hve2.12465
Shijie Huang, Haiqing Niu
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引用次数: 0

摘要

大跨度 10 kV 电缆线路的状态感知是建设智能配电网络的关键问题之一。能够实时映射设备物理状态的数字孪生(DT)受到广泛关注。然而,传统的建模方法无法满足大跨度复杂 DT 的实时计算和可扩展性要求。为了降低建模成本,提高计算速度,本文提出了一种基于实时温度场反演的模块化电缆线路 DT 建模方法。作者开发了一种适用于大跨度 10 kV 电缆线路的模块化降阶建模方法。结合温度场反演,提出了一种 DT 反演算法,用于评估电缆线路内部的瞬态温度场和接触电阻,该算法已被用于评估紧急负载能力。最后,温升测试验证了 DT 反演算法的正确性。通过模块化 DT 评估了电缆线路的运行状态,并计算了紧急时间和紧急载流量。结果表明,新方法能满足实际运行情况下 DT 计算的实时性和高精度要求。该方法可轻松扩展到不同电压等级的电缆线路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modular digital twin modelling method for 10 kV cable lines based on real‐time temperature field inversion
State perception of long‐span 10 kV cable lines is one of the critical issues in building intelligent distribution networks. Digital twin (DT), which can map the physical status of equipment in real‐time, has received extensive attention. However, traditional modelling methods cannot meet the requirement of long‐span complex DT's real‐time computation and scalability. In order to reduce the modelling cost and improve the calculation speed, a modular DT modelling method for cable lines based on real‐time temperature field inversion is proposed. The authors develop a modular reduced‐order modelling method that applies to long‐span 10 kV cable lines. Combined with the temperature field inversion, a DT inversion algorithm is proposed to evaluate the transient temperature field and contact resistance inside cable lines, which has been used to evaluate the emergency load capacity. Finally, temperature rise tests verified the DT inversion algorithm's correctness. The operating status of cable lines was evaluated through the modular DT, and the emergency time and emergency ampacity were calculated. The result shows that the new method meets the real‐time and high‐precision requirements of DT calculation in actual operation scenarios. It can be easily extended to cable lines of different voltage levels.
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来源期刊
High Voltage
High Voltage Energy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍: High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include: Electrical Insulation ● Outdoor, indoor, solid, liquid and gas insulation ● Transient voltages and overvoltage protection ● Nano-dielectrics and new insulation materials ● Condition monitoring and maintenance Discharge and plasmas, pulsed power ● Electrical discharge, plasma generation and applications ● Interactions of plasma with surfaces ● Pulsed power science and technology High-field effects ● Computation, measurements of Intensive Electromagnetic Field ● Electromagnetic compatibility ● Biomedical effects ● Environmental effects and protection High Voltage Engineering ● Design problems, testing and measuring techniques ● Equipment development and asset management ● Smart Grid, live line working ● AC/DC power electronics ● UHV power transmission Special Issues. Call for papers: Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf
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