NDLI: Single pole-to-ground fault location method for MMC-HVDC system using active pulse

Content Provider	IET Digital Library
Author	Bi, Tianshu Wang, Shuai Jia, Ke
Abstract	Modular multilevel converter HVDC (MMC-HVDC) systems have been commissioned in China, America and Europe. With the demand of long-distance and large-capacity power transmission, the MMC-HVDC systems using overhead lines get more attention. When a single pole-to-ground permanent fault occurs, the fault current is very small, therefore if the fault location is determined, the fault can be cleared and the HVDC system can revert to normal operation without interruption. MMC-HVDC can quickly control the work state of sub-modules (SMs), therefore, it is possible to generate travelling wave pulses propagating to the line by controlling SM, without the need of additional equipment. So in this study, a fault location method for MMC-HVDC using active pulse is proposed. Meanwhile dichotomising recursion singular value decomposition is used to detect the arrival time of active pulse. The proposed method does not require additional equipment and the method is not influenced by transition resistance. And fault location can be repeated since the pulse can be sent repeatedly. Computer simulations are performed and the results show that the proposed method can locate the grounding point of MMC-HVDC reliably and with increased accuracy relative to existing methods.
Starting Page	272
Ending Page	278
Page Count	7
ISSN	17518687
Volume Number	12
e-ISSN	17518695
Issue Number	Issue 2, Jan (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/12/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0116
Journal	IET Generation, Transmission & Distribution
Publisher Date	2017-08-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Pulse Algebra America China D.C. Transmission Dichotomising Recursion Singular Value Decomposition Europe Fault Current Fault Location HVDC Power Converter Large-capacity Power Transmission MMC-HVDC System Modular Multilevel Converter System Overhead Power Line Pole-to-ground Permanent Fault Power Converter Power Overhead Line Power Supplies to Apparatus Power System Protection Single Pole-to-ground Fault Location Method Singular Value Decomposition Transition Resistance Travelling Wave Pulses Voltage-source Converter
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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