混合多端子直流输电系统故障特征分析

2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES) Pub Date : 2020-09-15 DOI:10.1109/SPIES48661.2020.9243007

M. Li, Keao Chen, Jinghan He, Yiping Luo, Xiaojun Wang, Guomin Luo, Dahai Zhang

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引用次数: 3

摘要

混合多端高压直流系统已成为高压直流系统中最具竞争力和发展前景的系统。随着发展，提出了一种新的拓扑结构，其接收端由线路换流转换器(lcc)和模块化多级转换器(mmc)组成。对于这种具有复杂拓扑结构和控制策略的新型混合型多端直流系统，缺乏故障特征分析。本文在PSCAD/EMTDC中建立了典型的混合型多端直流输电系统拓扑仿真模型。分析了混合多端直流系统的故障特征，为后续的保护理论研究和工程实际应用奠定了基础。

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Analysis of Fault Characteristics of Hybrid Multiterminal HVDC Transmission System

Hybrid multi-terminal high-voltage direct current (HVDC) systems have become the most competitive and promising candidate for HVDC system. With the development, a new topology is proposed, whose receiving terminal involves line-commutated converters (LCCs) and modular multi-level converters (MMCs). The analysis of fault characteristics is lacking in this new hybrid multi-terminal HVDC system with complex topology and control strategies. In this paper, a typical topology simulation model of hybrid multi-terminal HVDC transmission system is built in PSCAD/EMTDC. The fault characteristics of hybrid multi-terminal HVDC system are analyzed, which is the basis for the subsequent protection theory research and practical application of engineering.

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2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES)

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