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Duty Cycle-Based Differential Protection Scheme for Power Transformers
IEEE Transactions on Power Delivery, 2022In general, a power transformer is equipped with differential protection relay with the second harmonic restraint criterion to improve reliability. However, this criterion may fail in some cases, resulting in incorrect operation of protection relay ...
T. Ji, C. Mo, L. L. Zhang, Q. Wu
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A Waveform-Based Approach for Transformer Differential Protection Under GIC Conditions
IEEE Transactions on Power Delivery, 2022Harmonic blocking (HB)-based differential relays, generally employed in the transformer protection, are likely to fail to interrupt internal short-circuit faults that occur under geomagnetically induced current (GIC) conditions.
Babak Ahmadzadeh-Shooshtari +1 more
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A power transformer differential protection based on support vector machine and wavelet transform
Electric power systems research, 2021This paper presents a power transformer differential protection scheme based on support vector machines (SVM) combined with high-frequency features extracted with the real-time boundary stationary wavelet transform (RT-BSWT).
L. D. Simões +5 more
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Ground-Differential Protection Revisited
IEEE Industry Applications Magazine, 2000The use of ground differential for the protection of impedance-grounded transformers and generators has been increasing. Because of its inherent selectivity and speed of operation, ground differential provides excellent protection against ground faults within the grounded winding of the equipment.
N.T. Stringer, G. Dalke
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Digital Differential Protection for $3\phi$ Solid-State Transformers
IEEE transactions on industry applications, 2021This article presents the development, implementation, and testing of a digital differential protection for three-phase ($3\phi$) solid-state transformers (SSTs).
S. Saleh, E. Ozkop
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, 2021
The high penetration of inverter-based distributed generators (IBDGs) T-connected into distribution networks has changed their structure from single-source networks to multi-source multi-branch networks; therefore, conventional distribution network ...
Haifeng Li +4 more
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The high penetration of inverter-based distributed generators (IBDGs) T-connected into distribution networks has changed their structure from single-source networks to multi-source multi-branch networks; therefore, conventional distribution network ...
Haifeng Li +4 more
semanticscholar +1 more source
Novel Disturbance Blocking Criterion for Reliable Current Differential Protection of LCC-HVDC Lines
IEEE Transactions on Power Delivery, 2021The existing current differential protection has been designated as the backup protection for LCC-HVDC lines. However, its reliability is very limited under the dc line high-impedance faults.
Hao Xiao, Shiduo Ren, Yinhong Li
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Protection of DC Microgrids Based on Differential Protection Method by Fuzzy Systems
2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek), 2021Today, DC microgrids have gained attention due to their performance ability. The advantages of this type of microgrid over AC microgrids are fewer DC/AC and AC/DC conversion steps, easier control, reliability, and higher efficiency.
Masoud Dashtdar +5 more
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Integration of Accelerated Deep Neural Network Into Power Transformer Differential Protection
IEEE Transactions on Industrial Informatics, 2020Differential protection scheme is the main protection scheme of power transformers, which still holds the risk of sending false trips subject to inrush currents.
Shahabodin Afrasiabi +3 more
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IEEE Transactions on Power Delivery, 2021
Benefiting to the immunization of distributed capacitance, Bergeron model based current differential protection has become a promising backup protection in HVDC grid.
Tongkun Lan +3 more
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Benefiting to the immunization of distributed capacitance, Bergeron model based current differential protection has become a promising backup protection in HVDC grid.
Tongkun Lan +3 more
semanticscholar +1 more source