Secondary Arc Current During DC Auto Reclosing in Multisectional AC/DC Hybrid Lines

Schindler, Jakob; Romeis, Christian; Jaeger, Johann

doi:10.1109/tpwrd.2017.2734044

Cited by 16 publications

(2 citation statements)

References 15 publications

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“…Long‐distance and large‐capacity DC transmission projects generally use overhead lines for power transmission. Considering the higher fault rate of overhead lines, the success rate of reclosing/restarting in the recovery stage is of great significance for the reliability of the power supply for the hybrid MTDC system [4].…”

Section: Introductionmentioning

confidence: 99%

Fault properties identification scheme for hybrid MTDC system based on LCC signal injection and distributed parameter line model

Hou

Song

Fan

2023

IET Generation Trans & Dist

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A fault properties identification scheme for a hybrid multi‐terminal DC (MTDC) system is proposed to improve the power supply reliability in the system recovery stage. Firstly, a current signal injection strategy based on line commutated converter (LCC) is proposed using the fault control capability. Secondly, the difference between the calculated value (CV) and the measured value (MV) of the current signal under permanent and temporary faults is analyzed for the distributed parameter line model. By introducing the dynamic time warping (DWT) algorithm to represent the difference between CV and MV, a fault properties identification scheme for permanent fault identification is constructed. Finally, the proposed scheme for permanent fault location with the distributed parameter model is obtained by introducing the trust region reflection (TRR) algorithm. The simulation results show that the proposed fault properties identification scheme has the function of permanent fault identification and location. The proposed scheme fully considers the effects of fault impedance, sampling rate, noise, and data loss. It can be applied to high voltage DC long‐distance transmission lines with LCC.

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Section: Introductionmentioning

confidence: 99%

Fault properties identification scheme for hybrid MTDC system based on LCC signal injection and distributed parameter line model

Hou

Song

Fan

2023

IET Generation Trans & Dist

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“…Flexible DC grid can reduce the fluctuations caused by renewable energy output. Since large-scale photovoltaic solar and wind power are generally located far from the load centre, overhead line becomes the main transmission line for high voltage DC (HVDC) [1][2][3][4][5][6][7]. However, the overhead line has the problem of high fault rate, in which most faults are temporary.…”

Section: Introductionmentioning

confidence: 99%

A coupling voltage based adaptive reclosing scheme for flexible DC grid

Wei

Zou

Zhang

et al. 2022

IET Generation Trans & Dist

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The total electric field around the DC line is composed of both the ion flow field produced by coronae and the electrostatic field produced by the conductor charge. Under the effect of the total electric field, the disconnected pole will generate a coupling voltage. Therefore, based on the coupling voltage, this paper proposes an adaptive reclosing scheme for flexible DC grid to prevent power supply interruption caused by temporary fault. First, the disconnected pole coupling voltage (DPCV) under the total electric field is analysed when single pole to ground fault (SPGF) and pole to pole fault (PPF) occur respectively. Then, according to the DPCV difference between permanent fault and temporary fault, a fault property identification (FPI) criterion is constructed. The scheme is very simple and not affected by the transition resistance, fault position and wiring mode which has high reliability. Compared with the non‐selective reclosing strategy, the adaptive reclosing scheme can avoid the secondary impact on the system from the permanent fault. Extensive simulations and experiments verify the effectiveness of the proposed adaptive reclosing strategy.

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Detection of secondary arc extinction and auto-reclosing in compensated AC transmission lines based on machine learning

Arefaynie,

Saad,

Kim

2023

Electric Power Systems Research

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Secondary Arc Current During DC Auto Reclosing in Multisectional AC/DC Hybrid Lines

Cited by 16 publications

References 15 publications

Fault properties identification scheme for hybrid MTDC system based on LCC signal injection and distributed parameter line model

Fault properties identification scheme for hybrid MTDC system based on LCC signal injection and distributed parameter line model

A coupling voltage based adaptive reclosing scheme for flexible DC grid

Detection of secondary arc extinction and auto-reclosing in compensated AC transmission lines based on machine learning

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