Results 151 to 160 of about 746 (183)
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VSC-HVDC transmission line faults location using active line impedance estimation
2012 IEEE International Energy Conference and Exhibition (ENERGYCON), 2012This paper describes the use of an active impedance estimation technique to accurately locate faults in a VSC-HVDC system transmission line. This method uses the power converters already installed in the HVDC system, without requiring any external additional hardware or intervention.
Mohammed Shukr +2 more
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Shielding Effect of HVAC Transmission Lines on the Ion-Flow Field of HVDC Transmission Lines
IEEE Transactions on Power Delivery, 2013The HVDC and HVAC transmission lines running on the same tower is a promising technology to improve the transmission capacity of an existing corridor. The ions generated by corona discharge of HVDC transmission lines will strengthen the ground-level electric field, which may endanger human exposure.
Xiangxian Zhou +7 more
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Protection of Multi-Terminal VSC HVDC Hybrid Transmission Line
2023This paper presents a fast fault detection scheme for a hybrid line in a multi-terminal (MT) voltage source converter (VSC) high voltage DC (HVDC) system. The proposed method is based on the primary and secondary protection scheme. The discrete wavelet transforms (DWT) with Teager energy operator (TEO) and voltage polarity comparison are applied to ...
Farkhani, Jalal Sahebkar; id_orcid 0000-0002-6788-7588 +4 more
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Fault Location for HVDC Transmission Lines Using Interference Cancellation
2019 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2019Currently fault location for HVDC transmission lines demands high sampling frequency and suffers from large fault resistance. In this paper, accurate location at relatively low sampling frequency is obtained with interference cancellation. The CWT (continuous wavelet transformation) is adopted to extract the main component of natural frequencies using ...
Yongchao Sun +6 more
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Fault Location Estimation in HVDC Transmission Line Using ANN
2016This paper presents a simple, yet accurate method for fault location in HVDC transmission lines using Artificial Neural Networks. The ±500 kV HVDC system has been modelled using PSCAD/EMTDC and further analysis has been done using MATLAB. Single-end AC RMS voltage and DC voltage and current have been used to identify the location of the fault.
Jenifer Mariam Johnson, Anamika Yadav
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High Voltage DC (HVDC) Overhead Transmission Lines
2023Jose Antonio Jardini, Stig Nilsson
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Corona Noise of HVDC Transmission Line
Eleventh International Wroclaw Symposium and Exhibition on Electromagnetic Compatibility, 1992Yoshitaka Sunaga +2 more
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Filterless Line Commutated Converter for HVDC Transmission
15th IET International Conference on AC and DC Power Transmission (ACDC 2019), 2019P. Briff, C. Udalagama, K. Vershinin
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