Analysis and Simulation of Monopolar Grounding Fault in Bipolar HVDC Transmission System

The paper analyses the monopolar grounding fault in bipolar HVDC system with phase-modal transformation method. Initial jumping voltage and maximum voltage on health pole with different kinds of termination are deduced by establishing the modal circuit under the fault. Simulation results show a grou...

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Bibliographic Details
Main Authors: Hua Li, Fuchang Lin, Junjia He, Yuxin Lu, Huisheng Ye, Zhigang Zhang
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Bipolar HVDC system
Circuit faults
Grounding
HVDC transmission
Inductance
Inductors
Insulation
Monopolar grounding fault
Phase-modal transformation method
Transmission line matrix methods
Transmission line theory
Voltage control
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Summary:The paper analyses the monopolar grounding fault in bipolar HVDC system with phase-modal transformation method. Initial jumping voltage and maximum voltage on health pole with different kinds of termination are deduced by establishing the modal circuit under the fault. Simulation results show a grounding fault in the middle of the line exhibiting maximum voltage with value of 1.54 p.u, which agrees well with the theoretical value. And the maximum voltage decreases with the increasing grounding resistance. The inductance of the reactor influences the maximum voltage on health line a little.
ISSN:1932-5517
DOI:10.1109/PES.2007.385955