基于适当正交分解法的±400kv换流变压器阀侧套管电热耦合场快速计算

IF 5 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Electrical Power & Energy Systems Pub Date : 2025-04-04 DOI:10.1016/j.ijepes.2025.110617

Zhilin Chu , Qingyu Wang , Huidong Tian , Siyuan Liu , Zhijie Gao , Songbo Tian , Peng Liu , Zongren Peng

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引用次数: 0

摘要

数字孪生技术对于实现电力设备的智能运维，促进电力行业的数字化转型具有至关重要的作用。高压换流变压器阀侧套管是高压直流输电工程中的关键设备，其多物理场的耦合效应决定了设备的运行状态。因此，迫切需要为高压套管开发关键的数字孪生技术，允许对多个物理场进行实时监控，以支持其可靠运行。本文采用有限元法建立了换流变压器阀侧套管的热电耦合场模型。通过求解热电耦合有限元方程，得到快照，并利用奇异值分解和固有正交分解（POD）有效地计算出轴套的热电耦合场。结果表明，通过降阶模型得到的电热耦合场分布与商业软件计算结果吻合较好，大大缩短了计算时间。本研究验证了利用POD进行高压换流变压器阀侧套管热电耦合场快速计算和实时仿真的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fast computation of electro-thermal coupling field of ± 400 kV converter transformer valve side bushing based on proper orthogonal decomposition method

The digital twin technology plays a crucial role in enabling the intelligent operation and maintenance of power equipment, as well as facilitating the digital transformation of the power industry. High voltage (HV) converter transformer valve side bushing is a critical equipment in high voltage direct current (HVDC) transmission projects and the coupling effect of its multi-physical fields determine the operation state of the equipment. Therefore, there is an immediate necessity to develop key digital twin technology for HV bushings, allowing for real-time monitoring of multiple physical field to support their reliable operation. The paper adopts the finite element method to construct a model for electro-thermal coupling field of the converter transformer valve side bushing. By solving electro-thermal coupling finite element equations, snapshots are obtained and electro-thermal coupling field of the bushing is efficiently computed using singular value decomposition and proper orthogonal decomposition (POD). The results demonstrate that electro-thermal coupling field distribution obtained through the reduced-order model closely matches that computed by commercial software, significantly reducing the required computation time. This research validates the effectiveness of utilizing POD for fast computation and real-time simulation of electro-thermal coupling field of HV converter transformer valve side bushings.

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来源期刊

International Journal of Electrical Power & Energy Systems 工程技术-工程：电子与电气

CiteScore

12.10

自引率

17.30%

发文量

1022

审稿时长

51 days

期刊介绍： The journal covers theoretical developments in electrical power and energy systems and their applications. The coverage embraces: generation and network planning; reliability; long and short term operation; expert systems; neural networks; object oriented systems; system control centres; database and information systems; stock and parameter estimation; system security and adequacy; network theory, modelling and computation; small and large system dynamics; dynamic model identification; on-line control including load and switching control; protection; distribution systems; energy economics; impact of non-conventional systems; and man-machine interfaces. As well as original research papers, the journal publishes short contributions, book reviews and conference reports. All papers are peer-reviewed by at least two referees.