Results 71 to 80 of about 12,622 (259)

A Hybrid Ultra‐High Voltage DC Transformer With Digital Twin‐Driven Operation and Control

Digital Twins and Applications, Volume 3, Issue 1, January/December 2026.
This study introduces a digital twin‐driven hybrid ultra‐high‐voltage DC transformer (UHVDCT) that combines high‐capacity LCCs with low‐capacity MMCs at the UHV side. This innovative topology reduces MMC requirements by 32.9% while ensuring stable power flow and dynamic reactive balance through real‐time virtual‐physical synchronization.
Ling Xu, Le Zhao, Xiaohu Zhang, Hanlin Guo, Jie Fang, Zheren Zhang, Zheng Xu   +6 more
wiley   +1 more source

Estimation on the switching losses at IGBT bridges power converter [PDF]

, 2011
. In the paper estimation on the switching losses at IGBT bridge converter with the output serial resonant load is given. The converter works on frequency higher than resonant frequency and supports the work of IGBT transistors in the bridge with zero ...
Cundev, Dobri, Karacinov, Ljupco, Stefanov, Goce   +2 more
core  

Design and implementation of 30kW 200/900V LCL modular multilevel based DC/DC converter for high power applications [PDF]

, 2016
This paper presents the design, development and testing of a 30kW, 200V/900V modular multilevel converter (MMC) based DC/DC converter prototype. An internal LCL circuit is used to provide voltage stepping and fault tolerance property.
Aboushady, A., Ahmed, K.H., Fazeli, S.M., Jovcic, D.   +3 more
core   +2 more sources

A new symmetric modular eleven‐level inverter using single and double source unit for low voltage applications with reduced number of switches

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This study introduces a new modular multilevel inverter that can produce five levels of positive voltage using only six power switches and five DC voltage sources. The basic unit is composed of a single‐ and double‐source (SDS) unit. SDS reduces the number of power electronic components, such as the insulated gate bipolar transistors, freewheeling ...
Naser Fakhri, Sara Laali, Mohammad Salay Naderi, Hossein Rahimi, Saeid Gholami Farkoush   +4 more
wiley   +1 more source

A nine‐level T‐type inverter (9L‐TTI) with voltage boost capability

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
A new multi‐level inverter topology with boosting feature considering the reduced switch count has been presented, compared and validated. Abstract This paper introduces a 9L T‐type boost inverter (9L‐TTI) based multilevel topology, which generates a nine‐level output voltage in the boost mode.
Zarren Firdous, Saad Mekhilef, Nidhi Mishra, Asif Mustafa, Mehdi Seyedmahmoudian, Alex Stojcevski   +5 more
wiley   +1 more source

Study on the Switching Time-Variation of Simultaneously Controlled IGBT: Case of Defibrillators Design [PDF]

Bioautomation, 2009
Samples of integrated gain bipolar transistors (IGBT) of the same type but produced under different technologies were tested about the switching time-variation.
Mudrov T., Kostov J.
doaj  

A three‐phase three‐level converter with shared flying capacitors

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
Three‐phase multilevel converters use a high number of components which increases their size. As specific weight reduction is a work of interest for embedded system applications, this paper presents a topology aiming to optimize volume and mass for a three‐level three‐phase inverter. The number of passive and active components is reduced thanks to the ‘
Maxime Pain, Guillaume Gateau, Jean‐Marc Blaquiere   +2 more
wiley   +1 more source

Silicon device performance measurements to support temperature range enhancement [PDF]

Characterization results of a MOS controlled thyristor (MCTA60P60) are presented. This device is rated for 60A and for an anode to cathode voltage of -600 V. As discussed in the last report, the MCT failed during 500 V leakage tests at 200 C. In contrast
Askew, Ray, Bromstead, James, Cosby, Melvin, Johnson, R. Wayne, Nelms, R. Mark, Weir, Bennett   +5 more
core   +4 more sources

An assessment of H‐bridge less grid‐tied multilevel inverter with minimum device count and lesser total standing voltage

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
An innovative switched‐capacitor‐based inverter is proposed in this article. The suggested converter can produce a five‐level output voltage by utilizing minimal components (single dc source, six switches, and one capacitor). The effectiveness of the suggested inverter is verified by experimental results using hardware in loop OPAL‐RT OP4510.
Tamiru Debela, Jiwanjot Singh, Vijay K. Sood   +2 more
wiley   +1 more source

Loss Characteristics of 6.5 kV RC-IGBT Applied to a Traction Converter

Energies, 2017
6.5 kV level IGBT (Insulated Gate Bipolar Transistor) modules are widely applied in megawatt locomotive (MCUs) traction converters, to achieve an upper 3.5 kV DC link, which is beneficial for decreasing power losses and increasing the power density ...
Xianjin Huang, Chao Ling, Dengwei Chang, Xiaojie You, Trillion Q. Zheng   +4 more
doaj   +1 more source