Results 31 to 40 of about 1,303 (282)
Commutation failure suppression strategy of hybrid DC transmission based on active current limiting
电力工程技术, 2022 Aiming at the problem of large inrush current when the commutation fails in the hybrid direct current (DC) transmission system,the relationship between the inrush current amplitude and the voltage source converter (VSC) is firstly derived.
MA Wenzhong +5 more
doaj +1 more source
IEEE Access, 2021 When the large-scale wind power is sent out through the high voltage direct current (HVDC) transmission system and a DC commutation failure occurs, the voltage of AC bus at the sending end decreases first and then increases.
Wei Li +6 more
doaj +1 more source
, 2021 Commutation failure at the inverter side of an MIDC (multi-infeed HVDC) is usually caused by AC system faults. Suppose the converter bus voltage cannot recover to the normal operation level in time: in that case, the commutation failure will then develop
Fei Tang +5 more
core +1 more source
Commutation failure caused by AC filter switching In HVDC system
The Journal of Engineering, 2019 Switching AC filter may cause harmonic impact, which may lead to commutation failure of HVDC system. Here, the commutation failure mechanism of HVDC system caused by AC filter switching is studied.
Meng Liu +3 more
doaj +1 more source
Criterion of single-phase fault nature of AC line considering the influence of commutation failure
电力工程技术, 2022 The amplitude of AC line current at the inverter side is affected by DC commutation failure and fluctuates for a short time after single-phase trip.The fluctuation range increases with the increase of the number of DC commutation failures,resulting in ...
LI Fengting +4 more
doaj +1 more source
Influence of single-phase circuit breaker tripping on inverter commutation
电力工程技术, 2022 If commutation failure does not occur when single-phase high resistance grounded in single-circuit AC line of inverter,then single-phase circuit breaker tripping may lead to commutation failure.
SONG Xinfu +4 more
doaj +1 more source
Impact of DC filters energies on the commutation failure in HVDC CIGRE benchmark [PDF]
, 2023 The present work is devoted to study and simulate of the functioning of monopolar HVDC LCC system of 500 kV in the presence of an AC power grids voltage disturbance. The CIGRE HVDC LCC Benchmark was simulated using MATLAB/Simulink in presence of AC grids
Rekik, Badri +7 more
core +1 more source
A predictive control strategy for mitigation of commutation failure in LCC-based HVDC systems [PDF]
, 2019 High-voltage direct-current (HVDC) systems are being widely employed in various applications because of their numerous advantages such as bulk power transmission, efficient long-distance transmission, and flexible power-flow control.
Mat Said, Dalila +11 more
core +2 more sources
Research on commutation failure of Jinsu DC transmission project caused by a complex AC fault
The Journal of Engineering, 2019 Commutation failure is an important factor on safe and stable operation of the receiving-end power grid for high voltage direct current (HVDC) project. A commutation failure event in Jinsu DC transmission project caused by a complex AC failure was taken ...
Wei Peng +3 more
doaj +1 more source
, 2023 HVDC is an important part of reducing energy transmission losses and maintaining energy sustainability. Commutation failure is the most common fault in HVDC systems, but existing commutation failure analysis approaches for HVDC systems do not consider ...
Yufei Wang, Jiahui Wu, Haiyun Wang
core +1 more source