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Symmetrical and Asymmetrical Fault Analysis of Transmission Line with Circuit Breaker Operation
2019 1st International Conference on Advanced Technologies in Intelligent Control, Environment, Computing & Communication Engineering (ICATIECE), 2019This paper presents an efficient illustration of symmetrical as well as asymmetrical faults which occur in transmission line. The agenda of this proposed work to identify the effect of different types of fault on transmission line voltage and current ...
S. Bagchi +4 more
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Control Solution to Over-Modulation of DFIG Converter for Asymmetrical Fault Ride Through
IEEE Transactions on Sustainable EnergyThis letter proposes a control solution to mitigate the problem of converter over-modulation in doubly fed induction generator (DFIG)-based wind turbine generators (WTGs). Overmodulation is a critical reason in failing to ride through asymmetrical faults
Yuanzhu Chang, Maxime Berger, I. Kocar
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Transient Characteristics of Synchronverters Subjected to Asymmetric Faults
IEEE Transactions on Power Delivery, 2019Since the large fault inrush current threatens the safety of power electronic devices, the synchronverter should have the fault ride-through (FRT) capability and should be equipped with a reliable protection system. Therefore, it is important to study the transient fault characteristics of the synchronverter and propose its fault current estimation ...
Lili He +5 more
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Asymmetrical Fault Ride-Through Enhancement for DFIG-Based WT Based on Sequence Coupling Analysis
IEEE transactions on industrial electronics (1982. Print)According to emerging asymmetrical fault ride-through (AFRT) grid codes, doubly-fed induction generator (DFIG)-based wind turbines (WTs) should inject positive sequence and negative sequence currents into the grid to attenuate the voltage unbalance ...
Sen Zhang +5 more
semanticscholar +1 more source
, 2020
The objective of this paper is to investigate the seismic responses of long-span and asymmetrical suspension bridges subjected to four intensity level (Small, moderate, huge, and super earthquakes) of near-fault ground motions.
Shixiong Zheng +5 more
semanticscholar +1 more source
The objective of this paper is to investigate the seismic responses of long-span and asymmetrical suspension bridges subjected to four intensity level (Small, moderate, huge, and super earthquakes) of near-fault ground motions.
Shixiong Zheng +5 more
semanticscholar +1 more source
Fault-tolerant scheduling for asymmetric communications
5th European Personal Mobile Communications Conference 2003, 2003A fault-tolerant scheduling system is presented for data broadcasting in asymmetric communication environments for obtaining high communication efficiency for the clients of mobile computing. The coding method that plays a key role in implementing this system is analysed.
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Open transistor fault detection in asymmetric multilevel inverter
2015 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES), 2015The number of power semiconductor switches and DC sources will increase with the increase in the number of levels of output voltage of the multilevel inverter. As the number of power semiconductor switches increases, the possibility of its failure and hence the breakdown of the inverter operation also escalate in a nonlinear manner.
Nithin Raj, Saly George, G Jagadanand
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IEEE Transactions on Smart Grid
Under asymmetrical fault, modular multilevel converters (MMCs) in AC/DC hybrid distribution network should limit fault currents and inject currents to support grid voltages.
Yuze Li +4 more
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Under asymmetrical fault, modular multilevel converters (MMCs) in AC/DC hybrid distribution network should limit fault currents and inject currents to support grid voltages.
Yuze Li +4 more
semanticscholar +1 more source
Closed-Form Determination of the Impedance Locus Plot of Fault Current Limiters: Asymmetrical Faults
IEEE Transactions on Power Delivery, 2020Closed-form determination of fault current limiter (FCL) impedance for symmetrical faults was reported previously using a mathematically rigorous method. In this paper, extensions of the method to asymmetrical faults are presented. Single line-to-ground faults and line-to-line faults are studied.
Shayan Behzadirafi, Francisco de Leon
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IEEE Transactions on Sustainable Energy
The existing imprecise fault current calculation, due to incomplete stage division of whole fault process of DFIG-based wind farms (DBWFs), brings great hidden dangers to safety and stable operation of local grid.
Xubin Liu +9 more
semanticscholar +1 more source
The existing imprecise fault current calculation, due to incomplete stage division of whole fault process of DFIG-based wind farms (DBWFs), brings great hidden dangers to safety and stable operation of local grid.
Xubin Liu +9 more
semanticscholar +1 more source