Results 41 to 50 of about 30,828 (307)
Asia, 2021 In this paper, a novel modular circuit configuration to integrate the large-scale photovoltaic (PV) systems to the grid using the modular multilevel converter (MMC) is proposed.
A. Elsanabary +3 more
semanticscholar +1 more source
Passive Voltage Balancing In Modular Multilevel Converter During Precharge: Analysis And Design
Eletrônica de Potência, 2020 The modular multilevel converter is composed of many equal submodules connected in series, each having to ideally withstand the same voltage and current stresses. The resulting configuration when each SM capacitor feeds its own auxiliary power supply is
Gean Jacques Maia de Sousa +3 more
doaj +1 more source
Frontiers in Energy Research, 2022 This study presents a strategy to reduce the capacitance of the submodule (SM) capacitor of a modular multilevel converter-based medium-voltage wind power converter. The design of the SM capacitor of the modular multilevel converter (MMC) should consider
Jianhang Qian +4 more
doaj +1 more source
IEEE transactions on power electronics, 2019 The small-signal impedance modeling of a modular multilevel converter (MMC) is the key for analyzing resonance and stability of MMC-based power electronic systems.
Jing Lyu, Xin Zhang, Xu Cai, M. Molinas
semanticscholar +1 more source
Arm current reversal‐based modular multilevel DC‐DC converter
IET Power Electronics, 2021 Nowadays, most of the converters used in high‐power high‐voltage (HV) applications are the conventional modular multilevel converters (MMC). However, in the case of DC‐DC conversion, an imbalance of the capacitor voltages occurs and the conventional MMC ...
Yousef Nazih +2 more
doaj +1 more source
ZPUC: A New Configuration of Single DC Source for Modular Multilevel Converter Applications
IEEE Open Journal of the Industrial Electronics Society, 2020 Z packed U-cell (ZPUC) converter topology is presented in this paper as a new type of multilevel converter topology that can be operated in a single phase as well as in three-phase configurations while using a single DC source. Since each U-cell includes
Saeed Arazm, K. Al-haddad
semanticscholar +1 more source
A multilevel modular DC–DC converter topology [PDF]
Mathematics and Computers in Simulation, 2017 [EN] A multilevel modular DC DC power conversion topology based on cascaded H-Bridge converters in a double II configuration is presented. The topology is intended to interconnect large power DC networks. A two level control hierarchy is used to regulate the DC voltage of each H-bridge module.
Ricardo Vidal +7 more
openaire +6 more sources
IEEE transactions on power electronics, 2020 This article presents the design and development of a 7-kV dc bus, 1-MVA, 0–1000 Hz modular multilevel converter (MMC) prototype for high speed medium-voltage variable frequency drives. The system is designed based on 1.7-kV silicon carbide (SiC) mosfets.
Jianyu Pan +9 more
semanticscholar +1 more source
Alexandria Engineering Journal, 2023 The integration of renewable energy sources in Medium-/High-voltage DC grids has called up continuous research to develop DC-DC conversion systems. This paper presents a hybrid modular multilevel DC-DC converter topology which successfully overcomes the ...
Mai Diab +2 more
doaj +1 more source
Steady-State Analysis of the Modular Multilevel Converter [PDF]
IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019 In this paper, the steady-state behavior of the modular multilevel converter (MMC) is studied under balanced and unbalanced AC grid voltage conditions. The suggested mathematical model is derived combining the converter internal arm variables and both AC and DC grids variables.
Daniel Westerman Spier +3 more
openaire +3 more sources