Results 51 to 60 of about 45,889 (185)

Construction and Application of Online Vibration Frequency Response Analysis Method for Converter Transformer Winding

High Voltage, Volume 11, Issue 3, Page 646-655, June 2026.
ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley   +1 more source

Optimal Power Distribution Method for Wind Farms to Enhance the FRT Capability of the LCC-HVDC System Under Commutation Failure

IEEE Access, 2021
Line-commutated converter (LCC) based high-voltage direct current (HVDC) technology is a common technology for long-distance transmission of electricity.
Xiao Jin, Heng Nian, Bo Pang
doaj   +1 more source

Research on the Inductance/Capacitance Switch Model for an LCC-HVDC Converter in an AC/DC Hybrid Grid

Energies, 2018
In order to improve the simulation speed of the AC/DC hybrid grid, the inductance/capacitance (L/C) switch model for line-commutated converter of high-voltage direct current (LCC-HVDC) is presented in this study.
Yangyang He, Xiaodong Zheng, Nengling Tai, Junxian Hou, Wentao Huang   +4 more
doaj   +1 more source

Performance Evaluation and Reliability of Flexible Asynchronous AC Link and LCC–HVDC Link Under Fault Conditions

IEEE Access, 2020
Normally, HVDC links are used for the asynchronous interconnection of power system networks. Similarly, asynchronous AC links are also used for the same application.
Imdadullah, Abdul R. Beig, M. Syed Jamil Asghar   +2 more
doaj   +1 more source

Analysis of the Operating Margin Evaluation of Multi-Infeed LCC-HVDC Systems Based on the Equivalent Impedance

IEEE Access, 2021
In China, a structure in which multiple line-commutated converter based high-voltage direct current (LCC-HVDC) systems feed into the same AC system has been formed.
Sicheng Wang, Shan Gao, Zhong Chen, Xin Zhao, Tiancheng E. Song, Yu Liu, Dong Yu, Sufan Jiang   +7 more
doaj   +1 more source

DC Side Impedance Modelling of an Actual Line Commutated Converter High Voltage Direct Current System and DC Resonance Characteristics

High Voltage, Volume 11, Issue 3, Page 725-737, June 2026.
ABSTRACT The stability analysis of Line Commutated Converter High Voltage Direct Current (LCC‐HVDC) is of considerable engineering importance. Establishing its analytical mathematical model helps to analyse stability and the factors that affect stability of the system.
Juanjuan Wang, Juntao Liu, Qingming Xin, Ze Mo, Baixian Ye, Yuekun Liu, Chuang Fu   +6 more
wiley   +1 more source

Small-Signal Stability Analysis of the LCC-HVDC System With a STATCOM Based on Grid Strength

IEEE Access
Static synchronous compensators (STATCOMs) can typically provide voltage support for the line-commutated converter high-voltage direct current (LCC-HVDC) system in weak grids. However, the interaction between STATCOMs and LCC-HVDCs via ac grids may cause
Zhencheng Liang, Xiang Zhang, Wuneng Ling, Qiuquan Deng, Biyun Chen, Hui Yuan   +5 more
doaj   +1 more source

Modified average‐value model for high‐performance fault transient simulation of AC‐DC hybrid power networks

IET Renewable Power Generation, 2023
Due to the complicated transients and the possibility of transition from a minor fault in AC subsystems to a severe blocking event of a high‐voltage direct–current (HVDC) transmission line, the study of AC‐DC hybrid power systems requires both efficient ...
Zeqi Hong, Yin Xu, Jinghan He, Dahai Zhang   +3 more
doaj   +1 more source

Series Connection of LCC and Full Bridge MMC With DC Fault Ride‐Through Capability for Lightweight HVDC Transmission

Engineering Reports, Volume 8, Issue 4, April 2026.
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang, Yuchao Zheng, Qian Wu, Linyuan Wang, Meng Ruan, Yixin Pan, Xiangjun Quan, Fei Zhang   +7 more
wiley   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

High Voltage, Volume 11, Issue 2, Page 317-344, April 2026.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi, Vijay K. Sood   +3 more
wiley   +1 more source