Results 21 to 30 of about 389 (201)
Mechanism Analysis of a Subsequent Commutation Failure and a DC Power Recovery Speed Control Strategy [PDF]
Electronics, 2022 A subsequent commutation failure (SCF) of the Line-Commutated Converter–High-Voltage Direct Current (LCC-HVDC) may occur during the recovery after the clearance of an AC fault, seriously threatening the safe and stable operation of the LCC-HVDC and the entire post-fault AC/DC hybrid power system.
Bowen Zheng +3 more
openaire +2 more sources
Enhanced constant extinction angle control for subsequent commutation failure in LCC‐HVDC [PDF]
IET Generation, Transmission & DistributionAbstract To mitigate subsequent commutation failure (SCF) in line‐commutated converter‐based high‐voltage direct current transmission systems, the response and limitations of the control system are analysed. The results reveal that due to the prolonged negative deviation of the extinction angle during recovery, the integral output of ...
Hao Li +3 more
openaire +2 more sources
An improved prediction method of subsequent commutation failure of an LCC-HVDC considering sequential control response [PDF]
Protection and Control of Modern Power Systems, 2023 AbstractSubsequent commutation failure (SCF) can be easily generated during the first commutation failure (CF) recovery process in a line-commutated converter-based high voltage direct-current system. SCF poses a significant threat to the safe and stable operation of power systems, and accurate prediction of CF is thus important.
Jinxin Ouyang +5 more
openaire +2 more sources
An Active Power Coordination Control Strategy for AC/DC Transmission Systems to Mitigate Subsequent Commutation Failures in HVDC Systems [PDF]
Electronics, 2021 Subsequent commutation failures (CFs) in HVDC systems will cause large-scale power flow transfer in AC/DC transmission systems and lead to overload risk in HVAC systems. In order to cope with these effects, a power coordination control strategy for the AC/DC transmission system with high-proportion wind power is proposed.
Xia Zhou +6 more
openaire +3 more sources
Journal of Modern Power Systems and Clean Energy, 2022 Line-commutated converter based high-voltage direct-current (LCC-HVDC) transmission systems are prone to subsequent commutation failure (SCF), which consequently leads to the forced blocking of HVDC links, affecting the operation of the power system.
Jian Liu +3 more
doaj +3 more sources
Evaluation Approach and Controller Design Guidelines for Subsequent Commutation Failure in Hybrid Multi-Infeed HVDC System [PDF]
ElectronicsDue to the difference in output characteristics between the line-commutated converter-based high-voltage direct current (LCC-HVDC) and voltage-source converter-based high-voltage direct current (VSC-HVDC), the hybrid multi-infeed high-voltage direct current (HMIDC) presents complex coupling characteristics.
Hui Fang +5 more
openaire +2 more sources
A current deviation control parameter tuning method to suppress subsequent commutation failure
电力工程技术If a subsequent commutation failure occurs in the line commutated converter-based high voltage direct current (LCC-HVDC) transmission system, it will have a seriously negative impact on the safe and stable operation of the AC-DC hybrid power grid. Aiming
LI Juan +4 more
doaj +2 more sources