Results 51 to 60 of about 239 (100)

Equivalent Test Method for Fault Ride‐Through of Integrated Energy‐consuming MMC Modules

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes an equivalent assessment index covering the entire fault ride‐through process, taking the integrated energy‐consuming MMC valve as the research object, and solves the problem of the lack of assessment index for the fault ride‐through equivalent test.
Ying Li, Dan Shi, Liantao Jiang, Kai Ma, Lingqi Tan, Xinwei Li, Ertao Lei, Sihang Wu   +7 more
wiley   +1 more source

A lightweight MMC topology with recombined half‐bridge submodules for DC fault ride‐through

IET Generation, Transmission & Distribution
The lightweight of modular multilevel converter (MMC) and the DC faults ride‐through ability are main challenges for MMC‐high voltage direct current (HVDC) transmission systems.
Yutao Xu, Zhukui Tan, Jikai Li, Qihui Feng, Zhuang Wu   +4 more
doaj   +1 more source

Non‐Contact Turn‐Off Time Measurement Method for IGBTs in the Half‐Bridge Submodule Configuration of MMC

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a non‐contact method for measuring the turn‐off time of insulated‐gate bipolar transistor (IGBT) devices in modular multilevel converters (MMC) submodules, using the decay of load‐side common‐mode current. The technique leverages existing current‐sensing infrastructure and avoids intrusive modifications, enabling real‐time ...
Jiyun Liu, Bowen Gu, Tianqi Li, Jian Luo, Zhonghao Dongye, Yuzheng Huang, Bing Ji, Lei Qi   +7 more
wiley   +1 more source

Accurate Harmonic Voltage Measurement Based on Series Resistive‐Capacitive Divider for Gas‐Insulated Switchgear

IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
A series resistive‐capacitive divider for harmonic voltage measurement of gas‐insulated switchgear was studied. It can step down the voltage while amplifying the proportion of harmonics in the total sensed voltage, thereby increasing the significant figure for the measurement and enabling the accurate measurement of high‐order, low‐amplitude harmonics.
Huizhong Pang, Ruiting He, Fei Liang, Yue Li, Huisi Liu, Wenbo Zhou, Binxian Lu   +6 more
wiley   +1 more source

A modified control strategy for LCC with IGCT‐based full‐bridge submodules to solve the commutation failure issues

IET Power Electronics
To solve the commutation failure (CF) issues in high voltage direct current (HVDC) transmission systems based on line commutated converter (LCC), this paper proposes a hybrid solution combining the LCC inverter with the continuously controlled IGCT‐based
Yindi Liu, Xiangjun Zeng, Yiping Luo, Haitao Qu   +3 more
doaj   +1 more source

Comprehensive study on fault-ride through and voltage support by wind power generation in AC and DC transmission systems

The Journal of Engineering, 2019
This study exploits the impact of different low voltage ride-through (LVRT) methods and equipment on both the wind energy elements and the grid including wind turbine/farm ability to provide reactive compensation and maintain controllability during ...
Attya Bakry Attya, Mari Paz Comech, Mari Paz Comech, Islam Omar   +3 more
doaj   +1 more source

Fabrication of 3D Micron T‐Shaped SiC/Silicone Rubber Composites With Nonlinear Conductivity

Journal of Applied Polymer Science, Volume 142, Issue 48, December 20, 2025.
Three‐dimensional micron T‐shaped SiC/silicone rubber composite films with low filler loading were fabricated via a switching DC/AC electric field‐induced self‐assembly method, exhibiting nonlinear conduction and rapid surface charge dissipation. ABSTRACT Polymer‐based electronic packaging materials often suffer from surface charge accumulation and ...
Zhiming Shen, Hiroyuki Saito, Wataru Mita, Yuya Takimoto, Takeshi Fujihara, Hong‐Baek Cho, Hisayuki Suematsu, Tadachika Nakayama, Koichi Niihara   +8 more
wiley   +1 more source

Operation and transient performance of a four-terminal MMC based DC grid implementing high power mechanical DC circuit breaker

The Journal of Engineering, 2019
Recently, there has been significant interest in developing the modular multilevel converter (MMC) based DC grids in the power industry. However, the immature DC circuit breaker (DCCB) technology hampers the development of DC grids in overhead lines ...
Binye Ni, Wang Xiang, Zhao Yuan, Xia Chen, Jinyu Wen   +4 more
doaj   +1 more source

Fault response comparison of LCC–MMC hybrid topologies and conventional HVDC topology

The Journal of Engineering, 2018
The modular multilevel converter (MMC) can be used to upgrade conventional line commutated converter-based HVDC systems (LCC-HVDC), construct the hybrid topologies of LCC and MMC to acquire better fault responses.
Boliang Lou, Hua Zhou, Zheng Xu, Shijia Wang, Yuzhe Xu   +4 more
doaj   +1 more source

Design and validation of a novel semiconductor area optimised 3300 V SiC half bridge for MMC

IET Power Electronics
This article presents the design and experimental validation of a novel semiconductor area optimised 3300 V half bridge with Silicon Carbide (SiC) MOSFETs for HVDC converters. Based on a loss simulation, the problem statement is provided. On this results,
Lukas Bergmann, Mark‐M. Bakran
doaj   +1 more source