Results 1 to 10 of about 119 (100)
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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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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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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IEEE AccessAdvancing the firing angle implemented by the commutation failure prevention (CFPREV) is an effective method for commutation failure (CF), but the increase of reactive power consumption of local inverter would cause adverse influence on voltage at the ac
Chenyi Zheng, Yi Tang
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Mitigating commutation failures in HVDC systems with SFCL deployment
International Journal of Electrical Power & Energy Systems, 2023 Commutation failures represent a prevalent issue encountered in line-commutated-converter high voltage direct current (LCC-HVDC) systems. As the widespread deployment of HVDC systems continues, the risk associated with commutation failures increases ...
Qihuan Dong +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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A Predictive Control Strategy for Mitigation of Commutation Failure in LCC-Based HVDC Systems [PDF]
IEEE Transactions on Power Electronics, 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. However, line-commutated-converter-based HVDC systems suffer from commutation failure, which is a major drawback ...
Xinzhou Dong +2 more
exaly +4 more sources
High VoltageCommutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on ...
Zongze Wang +7 more
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Review of Research on Voltage Dependent Current Order Limiter for Commutation Failure Mitigation [PDF]
Dianli jianshe[Objective] The objective of this study is to systematically sort out the research status of the voltage dependent current order limiter（VDCOL）improvement method to enhance the ability of VDCOL control to commutation failure in high-voltage direct ...
ZHU Xuan, TANG Yi, ZHENG Chenyi, WANG Ying, DANG Jie, CUI Ting
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Influence of current error controller on commutation failures and system recovery
电力工程技术, 2022 Constant extinction angle control based on prediction is a basic control strategy of inverter in line-commutated converter high-voltage direct current (HVDC) system.
SONG Xinfu +5 more
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