Results 21 to 30 of about 831 (244)

Medium Voltage Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge and Modular Multilevel Converters: A Review

open access: yesIEEE Access, 2020
Medium-voltage (MV) multilevel converters are considered a promising solution for large scale photovoltaic (PV) systems to meet the rapid energy demand.
Ahmed Ibrahim Elsanabary   +5 more
doaj   +1 more source

Investigating the Converter-Driven Stability of an Offshore HVDC System

open access: yesEnergies, 2021
Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore modular multilevel
Matthias Quester   +5 more
doaj   +1 more source

Modular Multilevel Converter for a Linear Generator for Wave Energy Converter

open access: yesEnergies, 2022
In this paper we propose a modular multilevel converter for a linear generator for a wave energy converter. The coils of this generator are individually controlled to improve energy harvesting performance. This topology involves two stages.
Henry M. Zapata, Marcelo A. Pérez
doaj   +1 more source

Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators

open access: yesApplied Sciences, 2020
In recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of ...
Ahmed A. Zaki Diab   +4 more
doaj   +1 more source

Bilinear Quadratic Feedback Control of Modular Multilevel Converters

open access: yesEnergies, 2023
The present paper introduces the formulation and development of a bilinear quadratic control algorithm for Modular Multilevel Converter (MMCs), with a specific emphasis on achieving internal energy stabilization and balance within the converter.
Guacira Costa de Oliveira   +4 more
doaj   +1 more source

Power Converters Coolant: Past, Present, Future, and a Path Toward Active Thermal Control in Electrified Ship Power Systems

open access: yesIEEE Access, 2023
Power converters have widespread applications in automotive, renewables, and power systems. The demand for power modules with low power consumption and high efficiency has increased due to advancements in semiconductor devices.
Ali Moghassemi   +5 more
doaj   +1 more source

Hardware-in-the-Loop Modeling of an Actively Fed MVDC Railway Systems of the Future

open access: yesIEEE Access, 2021
This paper presents an averaged real-time model of an arbitrary size MVDC railway system. In contrast to references already available in the literature, focusing mainly on specific parts of such a railway network (e.g.
Stefan Milovanovic   +3 more
doaj   +1 more source

Solid-state transformer based on modular multilevel converters

open access: yesThe Journal of Engineering, 2019
A new highly compact topology for solid-state transformers is presented. It is based on modular multilevel converters and, therefore, has their usual advantages such as superior voltage shape, high reliability, and scalability.
Patrick Himmelmann, Marc Hiller
doaj   +1 more source

System Level Real-Time Simulation and Hardware-in-the-Loop Testing of MMCs

open access: yesEnergies, 2021
In this paper we present an approach for real-time simulation and Hardware-in-the-Loop (HIL) testing of Modular Multilevel Converters (MMCs) that rely on switching models while supporting system level analysis.
Michele Difronzo   +4 more
doaj   +1 more source

Mixed cells modular multilevel converter [PDF]

open access: yes2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014
This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability. It has been found that the mixed MMC is resilient to both AC and DC network faults, which are necessary for next generations of highly
Adam, G. P., Ahmed, K.H., Williams, B.W.
openaire   +3 more sources

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