Results 1 to 10 of about 97 (93)
Commutation Failure Mitigation Method Based on Imaginary Commutation Process
Journal of Modern Power Systems and Clean Energy, 2022 The commutation failure (CF) mitigation effectiveness is normally restricted by the delay of extinction angle (EA) measurement or the errors of existing prediction methods for EA or firing angle (FA). For this purpose, this paper proposes a CF mitigation
Renlong Zhu +6 more
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IEEE Access, 2019 Commutation failure (CF) at the inverter side is one of the most common failures in the line-commutated converter-based high voltage direct current (LCC-HVDC) system. Effective prediction of CF helps to formulate and implement protection measures timely.
Qi Wang +3 more
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Commutation Failure Predictive Control Based on Fast AC Voltage Measurement in LCC-HVDC
IEEE Access, 2023 To inhibit commutation failure (CF), in this paper, the influence factors of CF were analyzed, and considering different fault types and different valves, the mathematical expression of extinction angle was deduced.
Guodong Huang +5 more
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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
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Quantitative Assessment for Commutation Security Based on Extinction Angle Trajectory
Journal of Modern Power Systems and Clean Energy, 2021 In order to reduce the risk of commutation failure (CF) in the AC/DC hybrid power system, the quantitative analysis on CF is required for on-line assessment and optimal control.
Qi Tao, Yusheng Xue
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Journal of Modern Power Systems and Clean Energy, 2021 The evolved capacitor commutated converter (ECCC), embedded with anti-parallel thyristors based dual-di-rectional full-bridge modules (APT-DFBMs), can effectively reduce commutation failure (CF) risks of line-commutated con-verter-based high voltage ...
Chunyi Guo, Bo Liu, Chengyong Zhao
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Study on Dynamic Characteristics of UHVDC System under Hierarchical Infeed Mode with STATCOM
Advances in Electrical and Electronic Engineering, 2021 This paper focuses on the investigation of the dynamic characteristics of Ultra High Voltage Direct Current (UHVDC) system Under Hierarchical Infeed Mode (UHVDC-HIM) with Static Synchronous Compensator (STATCOM). The STATCOM at the inverter side of UHVDC-
Atiq Ur Rehman +4 more
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Journal of Modern Power Systems and Clean Energy, 2022 This paper provides a comprehensive analysis of local and concurrent commutation failure (CF) of multi-infeed high-voltage direct current (HVDC) system considering multi-infeed interaction factor (MIIF).
Bilawal Rehman +4 more
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A Commutation Failure Prediction and Mitigation Method
Journal of Modern Power Systems and Clean Energy, 2022 The mitigation of commutation failure (CF) depends on the accuracy of CF prediction. In terms of the large error of the existing extinction angle (EA) calculation during the fault transient period, a method for CF prediction and mitigation is proposed ...
Renlong Zhu +4 more
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IET Generation, Transmission & Distribution, 2022 Line‐commutated converter‐based high‐voltage direct current (LCC‐HVDC) systems suffer from commutation failure (CF) when receiving‐end AC grid faults occur, which is a major drawback and threatens the security and stability of power systems.
Yaxun Guo +6 more
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