Results 121 to 130 of about 1,954,001 (140)

Predictive Commutation Failure Suppression Strategy for High Voltage Direct Current System Considering Harmonic Components of Commutation Voltage

open access: yesProcesses, 2022
The commutation failure of high voltage direct current (HVDC) systems could lead to unstable operation of the alternating current/direct current (AC/DC) hybrid power grid.
Bingtuan Gao, Zeyu CAO
exaly   +2 more sources

An Improved Commutation Prediction Algorithm to Mitigate Commutation Failure in High Voltage Direct Current

open access: yesEnergies, 2017
Commutation failure is a common fault for line-commutated converters in the inverter. To reduce the possibility of commutation failure, many prediction algorithms based on alternating current (AC) voltage detection have already been implemented in high ...
Ziping Wu   +6 more
exaly   +2 more sources

A Quantitative Index to Evaluate the Commutation Failure Probability of LCC-HVDC with a Synchronous Condenser

open access: yesApplied Sciences (Switzerland), 2019
Since thyristor cannot turn off automatically, line commutated converter based high voltage direct current (LCC-HVDC) will inevitably fail to commutate and therefore auxiliary controls or voltage control devices are needed to improve the commutation ...
Atiq Ur Rehman   +2 more
exaly   +2 more sources
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An enhanced commutation failure prevention control in LCC based HVDC systems

International Journal of Electrical Power and Energy Systems, 2023
Yufei TEng, Xiaopeng Li
exaly  

A commutation failure risk analysis method considering the interaction of inverter stations

International Journal of Electrical Power and Energy Systems, 2020
Shihong Miao, Yaowang Li, Ji Han
exaly  

The mechanism and solution of the anomalous commutation failure of multi-infeed HVDC transmission systems

International Journal of Electrical Power and Energy Systems, 2020
Liang Zou
exaly  

A novel evaluation method for the risk of simultaneous commutation failure in multi-infeed HVDC-systems that considers DC current rise

International Journal of Electrical Power and Energy Systems, 2021
Chunya Yin, Fengting Li
exaly  

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