Results 41 to 50 of about 533 (166)

Fault diagnosis method of a cascaded H‐bridge inverter based on a multisource adaptive fusion CNN‐transformer

IET Power Electronics, EarlyView.
The multisource adaptive fusion CNN‐transformer method proposed in this study can provide theoretical and technical support for fault diagnosis of high‐voltage MCHBI. It has a promising potential for engineering applications. Abstract In high‐voltage applications, the number of cascaded H‐bridge inverter units is large, the failure probability ...
Weiman Yang, Weinian Wang, Xinggui Wang, Jianfeng Gu, Zhuoling Wang   +4 more
wiley   +1 more source

Anatomopathological Characterization of the Main Ocular Lesions in Green Turtles (Chelonia mydas) Along the Northern Coast of Bahia, Brazil

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objective This study aimed to identify and report ophthalmic and adnexal diseases found in specimens of the Green sea turtle (Chelonia mydas). Animal Studied and Procedures Thirty‐nine animals stranded on the beaches of the north coast of Bahia, Brazil were submitted to necropsy.
Danielle Nascimento Silva, José Luís Catão‐Dias, Wendell Marcelo de Souza Perinotto, Matheus Vilardo Loés Moreira, Nayone Lantyer‐Araujo, Pedro Enrique Navas Suárez, Gustavo Rodamilans Macedo, Thaís Pires, Arianne Pontes Oriá, Alessandra Estrela‐Lima   +9 more
wiley   +1 more source

A Five‐Level Active Neutral‐Point‐Clamped Auxiliary Inverter Based on Reverse Blocking IGBT in Metro Applications

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
We propose a novel five‐level active‐neutral‐point‐clamped converter utilising reverse blocking IGBT (RB‐IGBT). The inverter configuration significantly reduces conduction losses, as only two switches are on the current paths in some switching states. We also propose an optimised state machine‐based modulation strategy.
Mingxia Xu, Bowen Yu, Yingying Xu, Rui Li, Jiatao Yang   +4 more
wiley   +1 more source

Enhancing Resilience and Efficiency in Low‐Voltage Resistive AC Microgrids Through Distributed Control Strategies

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
A distributed secondary control strategy for low‐voltage resistive AC microgrids is proposed, where consensus‐based algorithms dynamically adjust both the slope and offset of V‐I droop characteristics. This dual adaptation enables accurate proportional power sharing and effective voltage regulation at the PCC, while ensuring fast transient response and
Afshin Hasani, Hossein Heydari, Mohammad Sadegh Golsorkhi   +2 more
wiley   +1 more source

Equivalent Test Method for Fault Ride‐Through of Integrated Energy‐consuming MMC Modules

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes an equivalent assessment index covering the entire fault ride‐through process, taking the integrated energy‐consuming MMC valve as the research object, and solves the problem of the lack of assessment index for the fault ride‐through equivalent test.
Ying Li, Dan Shi, Liantao Jiang, Kai Ma, Lingqi Tan, Xinwei Li, Ertao Lei, Sihang Wu   +7 more
wiley   +1 more source

PWM Dead Times in Automotive Traction Inverters using IGBT, SiC MOSFET, or Si/SiC Fusion Switch Power Modules

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This article features a comprehensive methodology for analyzing and optimizing PWM dead time in automotive traction inverters, applicable to a wide range of power devices, including Si IGBT/Diodes, SiC MOSFETs, and Si/SiC Fusion switches. The proposed methodology enables a systematic comparison of dead time characteristics, focusing on part‐to‐part ...
Tomas Reiter, Julius Schapdick, Michael Krug, Mark Muenzer, Frank Wolter   +4 more
wiley   +1 more source

A Parameter Design Method for SVC Considering the Impedance Interaction Between Inverters and Reactive Compensation Devices

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
Distributed generation (DG) aggregation points are typically equipped with reactive compensation devices to maintain voltage stability. However, improper parameter design may cause harmonic oscillations due to interactions between the device and inverter impedance.
Chengjia Bao, Xingye Wang, Yonggang Li, Tianyi Zhang, Jianwen Li   +4 more
wiley   +1 more source

Research of SPWM of Single Phase Cascade Full-bridge Inverter Based on DSP

Gong-kuang zidonghua, 2010
Research and realization of topology and control strategy of cascaded multilevel inverter are important parts of high voltage power converter with large power.In the paper,main circuit of 2H bridge cascaded five-level inverter was introduced in which ...
WEI Bao-quan, HU Wen-hua, ZENG Jian-ju
doaj  

Constructing a systems psychodynamic wellness model

SA Journal of Industrial Psychology, 2012
Orientation: The researchers constructed a Systems Psychodynamic Wellness Model (SPWM) by merging theory and concepts from systems psychodynamics and positive psychology.
Sanchen Henning, Frans Cilliers
doaj   +1 more source

Structure and Hierarchical Control Method of Battery‐Based Hybrid Power Flow Controller

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
This article proposes a battery‐based hybrid power flow controller (B‐HPFC), offering enhanced flexibility for power flow regulation and energy storage. First, the structure of B‐HPFC is given, where the cascaded H‐Bridge (CHB) is integrated with the phase‐shifting transformer (PST). The batteries are connected to the modules of CHB.
Hua Shao, Ji Zhang, Shuo Wang, Ziyao Zheng, Jie Zhang, Mulian Zhang, Yumin Zhang   +6 more
wiley   +1 more source