Results 31 to 40 of about 569,080 (244)

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

IEEE 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, S. M. Imrat Rahman, Gokhan Ozkan, Christopher S. Edrington, Zheyu Zhang, Phani Kumar Chamarthi   +5 more
doaj   +1 more source

Distributed Control for a Modular Multilevel Converter [PDF]

IEEE Transactions on Power Electronics, 2018
Conventional centralized control strategies may reduce the flexibility and expandability of a modular multilevel converter (MMC) system. To tackle this issue, this paper proposes a distributed control architecture that is capable of assigning certain control tasks to distributed local controllers and improves the modularity of an MMC system.
Shunfeng Yang, Yi Tang, Peng Wang
openaire   +3 more sources

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

Energies, 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, Md Multan Biswas, Matthew Milton, Herbert L. Ginn, Andrea Benigni   +4 more
doaj   +1 more source

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

IEEE 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, Simon Strobl, Philippe Ladoux, Drazen Dujic   +3 more
doaj   +1 more source

Mixed cells modular multilevel converter [PDF]

2014 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   +4 more sources

Comparison between flying capacitor and modular multilevel inverter [PDF]

, 2009
The paper describes the operational principle of flying capacitor and modular multilevel inverters. The detailed discussions of dc link capacitors voltage balancing methods for both inverters are given in order to enable fair comparison. The causes of dc
Anaya-Lara, O., Finney, S.J., Burt, G.M., Adam, G.P., Williams, B.W., McDonald, J.R.   +5 more
core   +3 more sources

AC-Side Impedance-Based Stability Assessment in Grid-Forming Modular Multilevel Converters

IEEE Access
Grid-forming converters can emulate the behavior of a synchronous generator through frequency droop control. The stability of grid-forming modular multilevel converters can be studied via the impedance-based stability criterion. This paper presents an ac-
Mehrdad Nahalparvari, Mohsen Asoodar, Staffan Norrga, Hans-Peter Nee   +3 more
doaj   +1 more source

Hybrid Modular Multilevel Converters for High-AC/Low-DC Medium-Voltage Applications

IEEE Open Journal of Power Electronics, 2023
With ever-increasing power-density requirements, technologies such as energy storage systems and electric-vehicles can benefit greatly from interfacing medium-voltage (MV)-AC grid like 13.8kV or 30kV using high-AC/low-DC voltage converter.
Jayesh Kumar Motwani, Jian Liu, Rolando Burgos, Zhi Zhou, Dong Dong   +4 more
doaj   +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, Diego E. Soto-Sanchez, Iván Andrade, Javier Riedemann, Cristián Pesce, Enrique Belenguer, Rubén Peña, Ramón Blasco Giménez   +7 more
openaire   +6 more sources

Modified phase-shifted PWM control for flying capacitor multilevel converters [PDF]

, 2007
The issue of voltage imbalance remains a challenge for the flying capacitor multilevel converter. The phase-shifted pulsewidth modulation (PS-PWM) method has a certain degree of self-balancing properties.
Chunmei Feng, Vassilios G. Agelidis, Liang, J., Agelidis, V.G., Jun Liang, Feng, C.   +5 more
core   +2 more sources