Results 41 to 50 of about 17,156 (263)
The open-circuit fault detection and localization (FDL) technique can improve the reliability of the modular multilevel converter (MMC). However, the conventional software-based FDL methods usually have a heavy computation burden or a limited ...
Yu Jin +6 more
semanticscholar +1 more source
Energy transfer analysis for capacitor voltage balancing of modular multilevel converters [PDF]
Voltage balancing between sub-module (SM) capacitors is essential for reliable operation of the modular multilevel converter (MMC). To facilitate design and understanding of the balancing controllers, this study presents an energy transfer analysis for ...
Li, Binbin +3 more
core +1 more source
Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability [PDF]
One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed.
Aboushady, A.A., Ahmed, K.H.
core +2 more sources
Modular Analytical Modeling of the Modular Multilevel Converter (MMC)
Cet article présente une modélisation du convertisseur modulaire multiniveaux (MMC) qui se veut modulaire à l'image de sa topologie. La modélisation du MMC est composée de deux parties, une partie bas-niveau qui traite de la description des sous-modules (SM) qui composent le MMC et une partie haut-niveau qui représente le comportement du MMC avec ses ...
Le Goff, Grégoire +2 more
openaire +1 more source
This paper studies the electromechanical transient modelling techniques of the modified modular multilevel converter (MMC), named active MMC, which is equipped with embedded energy storage in submodules.
Zheyang Yu, Zheren Zhang, Zheng Xu
doaj +1 more source
Zero phase sequence voltage injection for the alternate arm converter [PDF]
The Alternate Arm Converter (AAC) is a voltage source converter being developed as an alternative to the Modular Multilevel Converter (MMC) for HVDC power transmission and reactive power compensation.
Dyke, KJ +4 more
core +1 more source
Fault response comparison of LCC–MMC hybrid topologies and conventional HVDC topology
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 +4 more
doaj +1 more source
Enhanced flat-topped modulation for MMC control in HVDC transmission systems [PDF]
Flat-topped modulation is a member of the family of triplen-series injection techniques that have been extensively utilized in PWM inverter systems to increase the DC-link, and hence semiconductor, utilization.
Fletcher, John E. +3 more
core +1 more source
The circuit topology of a submodule (SM) in an modular multilevel converter (MMC) defines many of the functionalities of the complete power electronics conversion system and the specific applications that a specific MMC configuration can support.
Yumeng Tian +4 more
semanticscholar +1 more source
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 +7 more
wiley +1 more source

