A Novel Fault Location Method for HVDC Transmission Lines

Yang, Liming; Chen, Fufeng; Xue, Mingjun; Li, Yuping; Chen, Shi; Zou, Lei

doi:10.1109/gtdasia.2019.8715936

Cited by 9 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…FIGURE 16 Mean location error of different close faults According to Figure 16, the mean errors of proposed method at different locations decrease with the distance. When faults occur near 10 km, the location errors are small and around 1%.…”

Section: Effect Of Close Faultsmentioning

confidence: 93%

“…The fault analysis method adopts the electrical measurements and the distributed line model of HVDC transmission lines [15]. The fault point can be found according to the distribution characteristics of transient voltages and currents along the line [16,17]. Liang et al combined the traveling wave theory with the Bergeron time-domain fault location method.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Stacked denoising autoencoder based fault location in voltage source converters‐high voltage direct current

Luo

Cheng

Hei

et al. 2021

IET Generation Trans & Dist

View full text Add to dashboard Cite

High voltage direct current has been more and more popular in modern transmission systems. Accurate fault location could help fault clearance and fast recovery of the faulted system. A stacked denoising autoencoder based fault location method for high voltage direct current transmission systems is proposed. The local measurements are analysed, and an end-to-end stacked denoising autoencoder-based fault location is realised. Representative features are extracted with unsupervised learning and labelled as the input of the regression network for fine-tuning in a supervised manner. The trained network can precisely map the local measurements and their corresponding fault distance. The performance of the proposed method is tested on a point-to-point high voltage direct current transmission system, which is modelled on the platform of PSCAD/EMTDC. The faults on both overhead lines and cables are considered, and the location performance in different scenarios are discussed. The simulation results show that the proposed method is effective in pinpointing faults location in various cases.

show abstract

Section: Effect Of Close Faultsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Stacked denoising autoencoder based fault location in voltage source converters‐high voltage direct current

Luo

Cheng

Hei

et al. 2021

IET Generation Trans & Dist

View full text Add to dashboard Cite

show abstract

“…To calculate the damped natural frequency of the capacitor discharge ω d , we perform FFT analysis to determine the dominant frequency of the underdamped oscillating transmission line current. As stated earlier, the transmission line current i discharge (t) decays at a frequency of ω d as shown in (6). The undamped response of the decaying oscillation can be calculated as (13),…”

Section: Fast Fourier Transform (Fft)mentioning

confidence: 96%

“…Rapid isolation of faults is essential as it might cause indelible damaged to the converter stations and the network infrastructure [5]. Extensive research has been carried out for ac transmission systems for fault location, but such techniques are generally not applicable for HVdc systems [6].…”

Section: Introductionmentioning

confidence: 99%

Fault Location Using the Natural Frequency of Oscillation of Current Discharge in MTdc Networks

2021

View full text Add to dashboard Cite

This paper discusses a novel offline-fault location approach using single ended measurements. The natural dissipation of the circuit parameters are considered for fault location. A relationship between the damped natural frequency of oscillation of the transmission line current and fault location is established. The hybrid dc circuit breaker (dcCB) interrupts the fault current, whereby the transmission line current attenuates under the absence of any driving voltage source. The line capacitance discharges into the fault at a specific frequency of oscillation and rate of attenuation. Utilizing this information, the fault location in a multi-terminal direct current (MTdc) network can be obtained. A three terminal radial model of a MTdc is used for performance evaluation of the proposed method using Power System Computer Aided Design (PSCAD)/Electromagnetic Transients including dc (EMTdc).

show abstract

“…As linhas de transmissão do sistema são modeladas a parâmetros distribuídos constantes na frequência por meio do modelo de Bergeron (Dommel, 1969). Apesar de o modelo a parâmetros distribuídos dependentes da frequência representar melhor a dispersão das ondas viajantes, o modelo de Bergeron pode ser utilizado de forma precisa para linhas de transmissão com o valor da resistência muito menor do que o da impedância de surto (Yang et al, 2019). Os parâmetros das linhas do sistema analisado são apresentados na Tabela 1.…”

Section: Transformada Wavelet Discreta Redundanteunclassified

Diagnóstico Completo de Faltas em um Sistema HVDC Baseado na Teoria de Ondas Viajantes e em Dados de Monitoramento de Um Terminal

Vieira

Júnior

Neves

2021

Procedings Do XV Simpósio Brasileiro De Automação Inteligente

View full text Add to dashboard Cite

This work proposes a method for detecting, classifying and locating incident faults in the transmission line of a bipolar HVDC system. This method is based on the traveling waves theory and uses the redundant discrete wavelet transform to filter the voltage signals monitored in only one terminal of the system. A self-adaptive detection threshold is used to detect faults. The HVDC system was modeled in the Alternative Transient Program (ATP) and different fault scenarios were analyzed, which were generated by varying the type, resistance and fault location. From the results obtained, it was verified that the method correctly detected and classified all types of faults. In the localization stage, the efficiency of the method was inversely proportional to the resistance and the fault location. Resumo: Neste trabalho é proposto um método de detecção, classificação e localização de faltas incidentes na linha de transmissão de um sistema HVDC bipolar. Tal método é baseado na teoria de ondas viajantes e utiliza a transformada wavelet discreta redundante para filtrar os sinais de tensão monitorados em apenas um terminal do sistema. É utilizado um limiar de detecção autoadaptativo para detectar as faltas. O sistema HVDC foi modelado no ATP (Alternative Transient Program) e diferentes cenários de faltas foram analisados, os quais foram gerados por meio da variação do tipo, resistência e local de falta. Dos resultados obtidos, foi verificado que o método detectou e classificou corretamente todos os tipos de faltas. Na etapa de localização, a eficiência do método se mostrou inversamente proporcional à resistência e ao local de falta.

show abstract

A Novel Fault Location Method for HVDC Transmission Lines

Cited by 9 publications

References 5 publications

Stacked denoising autoencoder based fault location in voltage source converters‐high voltage direct current

Stacked denoising autoencoder based fault location in voltage source converters‐high voltage direct current

Fault Location Using the Natural Frequency of Oscillation of Current Discharge in MTdc Networks

Diagnóstico Completo de Faltas em um Sistema HVDC Baseado na Teoria de Ondas Viajantes e em Dados de Monitoramento de Um Terminal

Contact Info

Product

Resources

About