A fault location criterion for MTDC transmission lines using transient current characteristics

Cheng, Jingzhou; Guan, Minyuan; Tang, Lv; Huang, Hongyang

doi:10.1016/j.ijepes.2014.04.009

Cited by 28 publications

(22 citation statements)

References 18 publications

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“…To overcome the challenges about the fault location in DC grids and provide a selective protection for these systems, wavelettransform-based methods have been suggested in [34,115,116]. In these methods, the criteria of fault location are defined based on the analysis of DC voltage and currents through wavelet transform (WT).…”

Section: Signal-processing Based Methodsmentioning

confidence: 99%

“…For instance, a fault detection/location technique has been proposed in [34], which is based on the wavelet-transform coefficients of voltage and current as well as magnitude and derivative of the voltage. On the other hand, References [116] has used complex-wavelet coefficients of transient currents to detect DC faults. The use of a feature vector containing the energy of wavelet coefficients has been suggested in [115]; the proposed vector is generated based on the multi-resolution analysis (MRA) and compared with a predefined threshold to detect the fault.…”

Section: Signal-processing Based Methodsmentioning

confidence: 99%

“…Moreover, since the travelling waves propagate along the lines of a multi-terminal system, most of the measurement devices installed within the DC network may receive these waves. As such, the travelling wave boundary method of Reference [122] may not find the exact location of the fault [116]. The abovementioned issues should be added to the concerns associated with the use of some sort of synchronizing mechanism for travelling waves in long lines…”

Section: Signal-processing Based Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Protection of AC and DC distribution systems Embedding distributed energy resources: A comparative review and analysis

Monadi

Zamani

Candela

et al. 2015

Renewable and Sustainable Energy Reviews

126

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Section: Signal-processing Based Methodsmentioning

confidence: 99%

Section: Signal-processing Based Methodsmentioning

confidence: 99%

Section: Signal-processing Based Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Protection of AC and DC distribution systems Embedding distributed energy resources: A comparative review and analysis

Monadi

Zamani

Candela

et al. 2015

Renewable and Sustainable Energy Reviews

126

View full text Add to dashboard Cite

“…The significance of different techniques for the protection of MTDC has been acknowledged and discussed [8][9][10][11][12][13][14][15][16][17][18][19][20][21]. The faults in low voltage DC networks can be indicated by overcurrent [8].…”

Section: Introductionmentioning

confidence: 99%

“…The fault detection performance can be improved for DC lines by utilizing the transient components for designing the protection scheme without communication [17]. A transient fault current technique is used for the protection of MTDC in [18]. The protection scheme is presented for the line current commutated converters since the operation and control of voltage source converter (VSC) are entirely different.…”

Section: Introductionmentioning

confidence: 99%

Identification and Isolation of Faults in Multi-terminal High Voltage DC Networks with Hybrid Circuit Breakers

et al. 2018

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This paper presents a protection scheme to protect multi-terminal high voltage dc (MTDC) networks for interconnection of renewable energy sources. The proposed scheme detects faults by using the Consecutive Data Window Method (CDWM) and harmonics of the system voltage to avoid maloperation of breakers without communication. Fault location is classified and faulty parts is isolated from the rest of the healthier network by using hybrid circuit breakers (HCBs). Moreover; it also categorises the fault with the help of the voltage drop. The rapid response to isolate the faulty portion in a few milliseconds is primarily considered to enhance the reliability and security of the network. The results of simulations verify the efficient fault detection and isolation for different DC faults and the investigation for the impact of significant parameters of the proposed scheme has been considered. The simulations are performed in PSCAD for four terminal MTDC networks to validate the proposed scheme. The performance is also verified under different fault conditions by using Matlab after computing the data from simulations.

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A comprehensive review of distribution generation integratedDCmicrogrid protection: issues, strategies, and future direction

Sarangi

Sahu

Rout

2020

Intl J of Energy Research

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The evolution of small-scaled distributed generators and emerging power electronic devices opens up a new arena of power generation, distribution, and consumption. Operationally, the DC microgrid has attracted significant attention as it offers considerable safety benefits, cost-effectiveness, energy efficiency, and reliability as compared to traditional AC microgrid systems. Looking at the protection aspects, the DC microgrid has some serious issues both for low-voltage and mid-voltage DC system. It needs to be focused on bidirectional power flow, non-zero crossing point, detection and mitigation of grounding faults, high value of fault current, etc., for an adequate solution. In recent times, these issues are considered by various researchers to arrive at a robust and reliable approach toward protecting the DC microgrid. But certain important areas are still out of sight for researchers. In a blend of conventional and modern approaches, there are many hindrances in developing a flexible universal protective scheme. This work focuses on the protection aspects parallel with the challenges and tried to unearth the loopholes which open up a wider area of research to develop a more robust protective architecture. An extensive review has been done systematically and chronologically keeping in mind the DC microgrid architecture, standards, protection hurdles, traditional as well as latest protective measures, and suggested some reliable improvements. In addition, the futuristic possibility to invent a novel comprehensive approach based on the best technology and techniques is presented in a more secure, reliable, and efficient protection system to combat the power system faults, keeping in view the different modes of operation and configuration of the microgrid.

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A fault location criterion for MTDC transmission lines using transient current characteristics

Cited by 28 publications

References 18 publications

Protection of AC and DC distribution systems Embedding distributed energy resources: A comparative review and analysis

Protection of AC and DC distribution systems Embedding distributed energy resources: A comparative review and analysis

Identification and Isolation of Faults in Multi-terminal High Voltage DC Networks with Hybrid Circuit Breakers

A comprehensive review of distribution generation integratedDCmicrogrid protection: issues, strategies, and future direction

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