Results 11 to 20 of about 365 (211)

Evaluation Approach and Controller Design Guidelines for Subsequent Commutation Failure in Hybrid Multi-Infeed HVDC System

Electronics (Switzerland)
Due 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.
Shunliang Wang
exaly   +2 more sources

A Novel Recovery Strategy to Suppress Subsequent Commutation Failure in an LCC-Based HVDC

Protection and Control of Modern Power Systems
Chunya Yin, Fengting Li
exaly   +2 more sources

Analysis of VSC-HVDC support capability for power grids with large-scale renewable energy and multi-infeed HVDC links

Energy Reports, 2023
Henan Power Grid is located in the north of Central China Power Grid. During its energy transition, thermal power units will be decommissioned on a large scale.
Pengxiang Xing, Youhang Yang, Jiasheng Peng, Linlin Yu, Ruihua Si, Peng Jia, Chuanjie Wang, Yunfeng Wen   +7 more
doaj   +1 more source

Improved Identification Method and Fault Current Limiting Strategy for Commutation Failure in LCC-HVDC

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, Sheng Lin, Wenliang Zhong, Lei Liu   +3 more
doaj   +1 more source

Coordinated power control of electrochemical energy storage for mitigating subsequent commutation failures of HVDC

International Journal of Electrical Power & Energy Systems, 2022
Abstract Commutation failure is one of the most common faults in high voltage direct current (HVDC) transmission system. Subsequent commutation failures (SCFs) caused by commutation failure will cause large voltage and current swing. Several SCFs may cause DC transmission power interruption, which seriously threatens the safe and stable operation of ...
Hongyu Zhou, Wei Yao, Xiaomeng Ai, Jing Zhang, Jinyu Wen, Chenghao Li   +5 more
openaire   +1 more source

DC Current Order Optimization Based Strategy for Recovery Performance Improvement of LCC-HVDC Transmission Systems

Journal of Modern Power Systems and Clean Energy, 2023
For the safe and fast recovery of line commutated converter based high-voltage direct current (LCC-HVDC) transmission systems after faults, a DC current order optimization based strategy is proposed.
Renlong Zhu, Xiaoping Zhou, Shuchen Luo, Lerong Hong, Hanhang Yin, Yifeng Liu   +5 more
doaj   +1 more source

Study on coordinated multi-objective reactive control system of AC/DC power grid based on new-generation synchronous condenser

Energy Reports, 2023
With rapid development of HVDC transmission system, the coupling relationship between the AC and DC power grid has become increasingly stronger. Especially, the problem of voltage instability is prominent in HVDC receiving-end system, the dynamic ...
Fan Xiao, Kan Cao, Jinrui Tang, Dan Liu, Yuze Rao, Ping Xiong   +5 more
doaj   +1 more source

An improved prediction method of subsequent commutation failure of an LCC-HVDC considering sequential control response

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, Xinyu Pan, Junjun Ye, Chao Xiao, Yanbo Diao, Qingwu Zhang   +5 more
openaire   +1 more source

Adaptive VDCOL control strategy for the recovery of the UHVDC SPC system

The Journal of Engineering, 2019
The separating pole connection (SPC) mode of ultra-high-voltage direct current (UHVDC) can significantly improve the power stability, but when the AC bus of one pole is failed and two receiving systems are near, it may cause subsequent commutation ...
Shujun Yao, Wenerda Huang, Wenbo Hao, Guo Wanhua   +3 more
doaj   +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