Location of DC Line Faults in Conventional HVDC Systems With Segments of Cables and Overhead Lines Using Terminal Measurements
- 6 December 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Delivery
- Vol. 27 (1), 279-288
- https://doi.org/10.1109/tpwrd.2011.2174067
Abstract
This paper presents a novel algorithm to determine the location of dc line faults in an HVDC system with a mixed transmission media consisting of overhead lines and cables, using only the measurements taken at the rectifier and inverter ends of the composite transmission line. The algorithm relies on the traveling-wave principle, and requires the fault-generated surge arrival times at two ends of the dc line as inputs. With accurate surge arrival times obtained from time-synchronized measurements, the proposed algorithm can accurately predict the faulty segment as well as the exact fault location. Continuous wavelet transform coefficients of the input signal are used to determine the precise time of arrival of traveling waves at the dc line terminals. Two possible input signals-the dc voltage measured at the converter terminal and the current through the surge capacitors connected at the dc line end-are examined and both signals are found to be equally effective for detecting the traveling-wave arrival times. Performance of the proposed fault-location scheme is analyzed through detailed simulations carried out using the electromagnetic transient simulation software PSCAD. The impact of measurement noise on the fault-location accuracy is also studied in this paper.Keywords
This publication has 16 references indexed in Scilit:
- Identification of Fault in HVDC Converters Using Wavelet Based Multi-Resolution AnalysisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- On the use of continuous-wavelet transform for fault location in distribution power systemsInternational Journal of Electrical Power & Energy Systems, 2006
- A Traveling Wave Based Fault Locating System for HVDC Transmission LinesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Basslink HVDC interconnector - system design considerationsPublished by Institution of Engineering and Technology (IET) ,2006
- Transmission Line Distance Protection Using Wavelet Transform AlgorithmIEEE Transactions on Power Delivery, 2004
- The feature of the Anan-Kihoku direct-current transmission line (overhead line)Published by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Fault protection of metallic return circuit of Kii channel HVDC systemPublished by Institution of Engineering and Technology (IET) ,2001
- The application of satellite time references to HVDC fault locationIEEE Transactions on Power Delivery, 1993
- Wavelets and filter banks: theory and designIEEE Transactions on Signal Processing, 1992
- Suppression of Abnormal Overvoltages on a Metallic Return HVDC Overhead Line/Cable Transmission SystemIEEE Transactions on Power Apparatus and Systems, 1978