Results 61 to 70 of about 951 (185)

Measurement and Analysis of Radiated Disturbance Characteristics of ±320 kV Modular Multilevel Converter System

IEEE Access, 2019
The radiated electromagnetic disturbance was evaluated by measuring the electric field intensity in a bandwidth of 10 kHz-2.75 GHz near the valve hall, direct-current (DC) area, reactor room, and transformers in a ±320-kV modular multilevel ...
Jian Zhang, Tiebing Lu, Weidong zhang, Jun Xu, Wenqi Li   +4 more
doaj   +1 more source

Comprehensive understanding of DC pole-to-pole fault and its protection for modular multilevel converters

High Voltage, 2018
A modular multilevel converter (MMC) is one of the promising voltage source converter topologies in the field of high-voltage direct current (HVDC) transmission.
Xiaofeng Yang, Yao Xue, Yao Xue, Piao Wen, Zejie Li   +4 more
doaj   +1 more source

Multi-terminal Heterogeneous Generalized Impedance Modeling and Analysis of MMC-MTDC Transmission Systems

Zhongguo dianli
The prominent risks of broadband oscillation among renewable energy, modular multilevel converter-based multi-terminal high voltage direct current (MMC-MTDC) and AC grid severely constrain the safe and stable operation and efficient accommodation of ...
Guoliang ZHOU, Liping GAO, Yanqiao LIANG, Wenjin LI, Xin WANG   +4 more
doaj   +1 more source

Poster Session 3

Pregnancy, Volume 2, Issue S1, January 2026.
wiley   +1 more source

Reliability evaluation of MMC system considering working conditions

The Journal of Engineering, 2018
The reliability is a key issue of the high-voltage high-power modular multilevel converter (MMC) system due to the usage of fragile insulated gate bipolar transistor (IGBT) modules. In this study, it is proposed that the reliability of the MMC system can
Tao Zheng, Meng Huang, Lingyi Zhu, Xiaoming Zha   +3 more
doaj   +1 more source

Multi-Degree-of-Freedom Control Framework for HVDC Transmission Converters

CSEE Journal of Power and Energy Systems
This paper systematically investigates the multi-degree-of-freedom (multi-DoF) control framework of high voltage direct current (HVDC) converters based on their topological characteristics and control requirements.
Haobo Zhang, Jinyu Wen, Wang Xiang, Weixing Lin, Meng Zhou, Wenping Zuo, Shijie Cheng   +6 more
doaj   +1 more source

Pre-charge Control of Modular Multilevel Converter and Its SVG Experiment

Kongzhi Yu Xinxi Jishu, 2013
It mainly introduced the topology and working principles of modular multilevel converter (MMC), put forward a control strategy and sub-module storage capacitor pre-charge strategy of the MMC. In addition, the prototype of SVG was developed.
DENG Ming, WU Qiang, ZHANG Zhixue, TANG Jianzhao, LIU Huadong, TAN Shengwu   +5 more
doaj  

Internal Energy Balancing Control of a Modular Multilevel Converter as Part of a Hybrid Transformer

IEEE Open Journal of Power Electronics
Hybrid transformers (HTs) can provide voltage and current compensation in the utility grid. HTs include a line-frequency transformer and a converter rated for partial transformer power.
Rui Wang, Maurice G. L. Roes, Henk Huisman, Cornelis G.E. Wijnands   +3 more
doaj   +1 more source

Optimizing virtual synchronous generator control in MMC-based HVDC systems for power system oscillation damping

Results in Engineering
This paper discusses the development of a Virtual Synchronous Generator utilizing a Modular Multilevel Converter. The control system employs an internal simulation of the electromechanical swing equation to replicate the inertia and damping ...
Chethan M․, Ravi K
doaj   +1 more source

Traction MMC / Bahn MMC: Multilevel Modular Converter

, 2023
Biela, Jürgen; id_orcid0000-0001-9099-6486, Beck, Simon, Fuchs, Simon   +2 more
openaire   +2 more sources