Results 181 to 190 of about 365 (211)

Design of fault location algorithm based on online distributed travelling wave for HV power cable. [PDF]

PLoS One
Haohao C, Jing L, Ping C.
europepmc   +1 more source

Clinical and Biological Insights into Myelodysplastic Neoplasms Associated with Deletions of Chromosome 5q Region. [PDF]

Hematol Rep
Testa U, Castelli G, Pelosi E.
europepmc   +1 more source

Entropy of the Quantum-Classical Interface: A Potential Metric for Security. [PDF]

Entropy (Basel)
Chehade S, Dawson JA, Prowell S, Passian A.   +3 more
europepmc   +1 more source

Suppression to Subsequent Commutation Failure of UHVDC in Hierarchical Connection Mode with Estimated Equivalence of Post-fault of AC Grids

CSEE Journal of Power and Energy Systems
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A Novel Control Strategy for Suppression of HVDC Subsequent Commutation Failure

2020 IEEE 3rd Student Conference on Electrical Machines and Systems (SCEMS), 2020
In the case of AC failures at the receiving end of the HVDC system, commutation failures are likely to occur, which may cause the converter station to lock up and seriously threaten the safety of the power grid. In order to suppress the subsequent commutation failure of HVDC, this paper studies the response of the electrical quantity and the control ...
Wang Jing, Li Jun, Yang Zengli, Zhang Hao, Cong Xinpeng, Hu Yuzhou   +5 more
exaly   +2 more sources

Improved Extinction Angle Control for Subsequent Commutation Failure Mitigation in LCC-HVDC

2021 IEEE 11th Annual International Conference on CYBER Technology in Automation, Control, and Intelligent Systems (CYBER), 2021
Extinction angle control is one of the main control strategies to mitigate the commutation failure in HVDC, but the problem of insufficient response speed and control precision still can't be solved effectively based on the current research on measured and predictive extinction angle control.
Yurong Wang, Chenyi Zheng
exaly   +2 more sources

Early Warning and Inhibition of HVDC Subsequent Commutation Failure During Recovery Process Under Grid Fault

IEEE Transactions on Power Delivery, 2021
Initiation of ac fault may lead to the commutation failure, and the high-voltage direct current (HVDC) system is still confronted with the risk of subsequent commutation failure (SCF) during recovery process prior to the fault clearance. In this paper, the mechanism of subsequent commutation failure is investigated through the analysis of controller ...
Dachuan Tian, Xiaofu Xiong
exaly   +2 more sources

A HVDC Subsequent Commutation Failure Mitigation Strategy Based on Modified Firing Angle Order by Firing Angle Measurements

2020 4th International Conference on HVDC (HVDC), 2020
Commutation failures in line commutated converter based high voltage direct current systems (LCC-HVDC), especially continuous commutation failures, can easily cause lockup in DC systems, and drastic power changes and protection malfunctions in AC systems.
Tai Nengling
exaly   +2 more sources

Subsequent Commutation Failure Suppression Method Based on Optimized Current Error Controller Parameters

2022 4th International Conference on Smart Power & Internet Energy Systems (SPIES), 2022
You Zuo
exaly   +2 more sources

A General Self-Adaptive DC Current Control of LCC-HVDC for Eliminating Subsequent Commutation Failure

IEEE Transactions on Power Delivery, 2023
, Dongdong Li, Yi Gao
exaly   +2 more sources