Results 21 to 30 of about 246 (86)
IET Generation, Transmission &Distribution, Volume 16, Issue 3, Page 591-602, February 2022., 2022 Abstract Concerning the transient power angle stability problem in AC/DC inter‐connected system caused by DC line grounding fault, a transient stability analysis method based on the stability margin of dynamic energy is proposed. First, the analytical expressions of the dynamic energy function before alpha retard, during alpha retard and after alpha ...
Jing Ma +3 more
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International Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022 Commutation failure (CF) is an inherent drawback of line‐commutated converter high‐voltage DC (LCC‐HVDC) system. And CF prevention (CFPREV) control is widely applied in UHVDC lines to mitigate the subsequent CF. However, the formation of a multi‐infeed UHVDC system induces power exchange and voltage interaction between AC buses during the transient ...
Wei Yao +7 more
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Electronics Letters, Volume 57, Issue 5, Page 229-231, March 2021., 2021 Abstract The hybrid high‐voltage direct current (HVDC) with cascaded multi‐infeed MMC inverters is proposed in recent years, and it will be put into reality in near future. But the commutation failure of the line‐commutated converter (LCC) inverter will make the whole HVDC system to be blocked because the DC fault current could reach beyond the safety ...
Qin Jiang +3 more
wiley +1 more source
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
doaj +1 more source
IEEE Access, 2020 To mitigate commutation failures (CFs) and minimize the instability of HVDC systems due to AC faults or control mode ambiguity, a constant extinction voltage-time area based control strategy with virtual resistance is proposed.
Zhanhong Wei, Wanliang Fang, Jun Liu
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, 2023 A sending-end AC fault may lead to commutation failure (CF) in a line-commutated converter high-voltage direct current (LCC-HVDC) system. In this paper, a theoretical analysis of the impact mechanisms of a CF and its recovery speed on the transient ...
Jiawei Hu +3 more
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, 2023 In this paper, a new coordinated control strategy for Line-Commutated Converter based High Voltage Direct Current (LCC-HVDC) system is proposed to support the frequency of both sending- and receiving-end power systems under large frequency disturbance. A
Xue, Y.; id_orcid +3 more
core +1 more source
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.This paper first identifies the common issue across multiple LCC‐HVDC control systems, namely, that uncertain and uncoordinated control strategies switching would lead to subsequent commutation failure. Then, since power reflects variations in electrical quantities such as voltage and current, the analysis is conducted from a transmitted‐power ...
Xiaohua Li +4 more
wiley +1 more source
Enhanced constant extinction angle control for subsequent commutation failure in LCC‐HVDC
IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.The key control factor affecting subsequent commutation failure suppression in line‐commutated converter‐based high‐voltage direct current were identified. Some conclusions from previous literature were corrected, and an adaptive integral parameter adjustment strategy to enhanced control ability and suppress subsequent commutation failure was ...
Hao Li +3 more
wiley +1 more source
The Journal of Engineering, Volume 2019, Issue 16, Page 820-825, March 2019., 2019 A hybrid high‐voltage direct current (HVDC) system comprises a line commutated converter (LCC) at the rectifier side and a voltage source converter (VSC) at the inverter side, combining advantages of both LCC and VSC systems. However, the asymmetric converters at both ends of line constrain the direct application of line protections used for ...
Yanting Wang +2 more
wiley +1 more source