Results 111 to 120 of about 17,156 (263)

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

Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]

, 2009
The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Adam, G.P., Anaya-Lara, O., Burt, G.M., Finney, S.J., McDonald, J.R., Williams, B.W.   +5 more
core  

Poster Session 3

Pregnancy, Volume 2, Issue S1, January 2026.
wiley   +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  

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

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

New modulation scheme for bidirectional quasi z-source modular multilevel converters [PDF]

, 2018
This paper proposes a dedicated modulation scheme for a bidirectional quasi Z-source modular multilevel converter (BqZS-MMC). The operation principle and a suitable PWM method are proposed. The relation between the modulation index and shoot-through duty
Khera, Fatma, Klumpner, Christian, Wheeler, Patrick   +2 more
core  

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

Modeling and Control of Virtual Synchronous Generator Based on MMC-RPC

Kongzhi Yu Xinxi Jishu, 2018
As a typical weak AC system, traction power supply system has some disadvantages such as low inertia and poor resistance to disturbance. MMC-RPC (modular multilevel converter - railway static power conditioner) can control the power quality problems in ...
SONG Pinggang, ZHOU Zhenbang, DONG Hui, WEN Fa   +3 more
doaj  

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