Results 41 to 50 of about 203 (153)

Virtual synchronous generator control strategy of M3C converter in fractional frequency offshore wind power system

电力工程技术
In this paper, the control strategy of modular multilevel matrix converter (M3C) is studied in the scenario of fractional frequency offshore wind power.
HAN Huachun, NING Lianhui, LI Chenchen, YE Zhibin, YANG Caihong   +4 more
doaj   +1 more source

A Novel Harmonic State-space Modelling Method on the Modular Multilevel Matrix Converter and Coupling Analysis

CSEE Journal of Power and Energy Systems
The fractional frequency transmission system is an emerging technology for long-distance wind power integration, and the modular multilevel matrix converter (M3C) is the keen equipment.
Jing Li, Boyang Zhao, Shenquan Liu, Jie Li, Xiuli Wang, Xifan Wang   +5 more
doaj   +1 more source

Control of the Modular Multilevel Matrix Converter for Wind Energy Conversion Systems

, 2017
The nominal power of single Wind Energy Conversion Systems has been steadily growing, reaching power ratings close to 10 MW. In the power conversion stage, medium-voltage power converters are replacing the conventional low-voltage back-to-back topology.
openaire   +1 more source

A novel cascaded vector control scheme for the Modular Multilevel Matrix Converter

IECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society, 2011
This paper presents a novel cascaded vector control scheme for the Modular Multilevel Matrix Converter (M3C). The inner current control loops allow an independent control of the input and output converter currents. The outer energy control consists of average, vertical and horizontal balancing control loops to equalize the energy stored in the nine ...
Kammerer, Felix, Kolb, Johannes, Braun, Michael   +2 more
openaire   +4 more sources

Operating Performance of the Modular Multilevel Matrix Converter in Drive Applications

, 2015
The Modular Multilevel Matrix Converter (M3C) is an emerging topology, especially suitable for high torque low speed drive applications in the medium voltage range. One special benefit is the overload capability of the output currents. Up to 200% of the nominal values can be reached near standstill to overcome breakaway torques without additional ...
Kammerer, Felix, Bräckle, Dennis, Gommeringer, Mario, Schnarrenberger, Mathias, Braun, Michael   +4 more
openaire   +2 more sources

Fully Decoupled Branch Energy Balancing Control Method for Modular Multilevel Matrix Converter Based on Sequence Circulating Components

CSEE Journal of Power and Energy Systems
The modular multilevel matrix converter (M3C) is a potential frequency converter for low-frequency AC transmission. However, capacitor voltage control of high-voltage and large-capacity M3C is more difficult, especially for voltage balancing between ...
Zexin Zhao, Weijiang Chen, Zhichang Yang, Guoliang Zhao, Bin Han, Yunfei Xu, Nianwen Xiang, Shulai Wang   +7 more
doaj   +1 more source

Topologies and control of low-frequency alternating current for offshore wind farms based on modular multilevel matrix converter

The Journal of Engineering, 2019
As a new alternative to power transmission, low-frequency alternating current (LFAC) transmission system has a bright future for offshore wind power transmission.
Chang Yuan, Ruibing Zhou, Ming Tong
doaj   +1 more source

Rapid Fault Diagnosis of a Back-to-Back MMC-HVDC Transmission System under AC Line Fault

Energies, 2018
The integration of a modular multilevel converter-based high-voltage direct current (MMC-HVDC) transmission system in power networks has led to a high requirement for the rapidity of fault recognition.
Qing Huai, Kaipei Liu, Liang Qin, Jian Le, Kun Wang, Shu Zhu, Yuye Li, Xiaobing Liao, Hua Ding   +8 more
doaj   +1 more source

Analytical monodromy matrix method for small-signal stability analysis of grid-connected modular multilevel converter systems

International Journal of Electrical Power & Energy Systems
The modular multilevel converter (MMC) has been widely used in high-voltage/high-power applications, e.g., high-voltage direct current transmission. However, its nonlinear time-periodic nature leads to complex harmonic interactions and then complicates ...
Xiaofan Jia, Hua Ye
doaj   +1 more source

Circulating Current Suppression Strategy of Modular Multilevel Matrix Converter Based on Quasi-Proportional Resonant Control

Shanghai Jiaotong Daxue xuebao
Modular multilevel matrix converter (M3C) is the core device of the fractional frequency transmission system. Due to the lack of direct current link, the electrical quantities of different frequencies are directly coupled inside the M3C, resulting in a ...
JIANG Yafeng, LI Yibo, WU Qiuwei, LIU Shenquan, WU Xiaodan, ZHOU Qian
doaj   +1 more source