Topological Analysis and Parameter Calculation of Transfer Breakers in Multi-Terminal HVDC System

The DC transfer switch is a key switching device that converts the DC operating current in the HVDC transmission system from one operating return line to another. In a multi-terminal DC transmission system, the selection of metallic return transfer breaker and the earth return transfer breaker is cl...

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Bibliographic Details
Published in2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) pp. 3191 - 3196
Main Authors Li, Qian, Gan, Qingzhong, Huang, Hua, Xu, Panteng, Zhou, Dengbo, Xiong, Chao
Format Conference Proceeding
LanguageEnglish
Published IEEE 30.10.2020
Subjects
conversion current
DC transfer breaker
Earth
HVDC transmission
multi-terminal DC transmission
Switches
Switching circuits
System integration
topological analysis
Topology
Wiring
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Summary:The DC transfer switch is a key switching device that converts the DC operating current in the HVDC transmission system from one operating return line to another. In a multi-terminal DC transmission system, the selection of metallic return transfer breaker and the earth return transfer breaker is closely related to the system topology. This paper analyzes the multi-terminal HVDC transmission system and refines its topology characteristics. A calculation method for determining the configuration mode, parameter selection and operation sequence of the transfer breakers is proposed. This simulation verification is carried out in combination with a three-terminal HVDC project.
DOI:10.1109/EI250167.2020.9347213