Results 91 to 100 of about 6,505 (303)

Voltage Jump Suppression and Capacitor Voltage Fluctuation Analysis for a Four-Level Hybrid Flying Capacitor T-Type Converter

Energies, 2019
In low and medium voltage power conversion systems, multilevel converters are becoming more and more attractive due to improved power density. However, the complexity of topology and control is a big challenge for the application of multilevel converters.
Chen Wei, Xibo Yuan, Juan Zhou, Kangan Wang, Yonglei Zhang, Xiaojie Wu   +5 more
doaj   +1 more source

A hybrid multilevel converter for medium and high voltage applications

, 2010
This paper investigates the suitability of the hybrid multilevel converter for medium and high voltage application. The converter operation, modulation, and capacitor voltage balancing method are described in detail.
Ahmed, Khaled, Adam, Grain Philip, Finney, Stephen, Singh, N.K., Williams, Barry   +4 more
core  

An On‐Demand Neuromorphic Vision System Enabled by a Multi‐Paradigm Neuromorphic Device and Hierarchical Reconfigurability Designed from Device to System Level

Advanced Science, EarlyView.
An on‐demand ultra‐reconfigurable intelligent vision system with hierarchical reconfigurability from device to system levels is demonstrated. Through co‐design of a multi‐paradigm device, reconfigurable circuits, and adaptive system architecture/algorithms, the system enables seamless switching among spiking, non‐spiking, neuromorphic imaging (NI), and
Biyi Jiang, Jiayi Xu, Liang Ran, Xinhe Feng, Khalil Harrabi, Yida Li, Longyang Lin, Feichi Zhou   +7 more
wiley   +1 more source

Control directo de potencia de convertidores electrónicos conectados a la red [PDF]

, 2007
Los convertidores electrónicos de potencia se han consolidado como un elemento fundamental en los sistemas eléctricos, ya que hacen posible una transmisión más flexible de la potencia por el sistema eléctrico y pueden actuar como compensadores.
Eloy-García Carrasco, Joaquín
core  

MULTILEVEL POWER CONVERTERS: A SURVEY

, 2020
Multilevel static power conversion (MSPC) technology has ability to process high voltages and generate multi- tier voltage waveforms with high spectral quality. This technology is increasingly being used in ac- dc, dc-ac converters and power conditioning
BASAVARAJA, B., CH, KIRAN KUMAR, KUMAR, A.NAVEEN   +2 more
core   +1 more source

Full‐Body AI Agent: A Perspective on Multi‐Scale Collaborative AI for Systemic Biology and Precision Medicine

Advanced Science, EarlyView.
We propose the Full‐Body AI Agent, a multi‐scale collaborative framework with 7 biological‐layer agents. It unifies multi‐omics/clinical data via standardized protocols, enabling phenotype‐guided closed‐loop reasoning, quantitative evaluation, and LLM safeguards, with promising applications in tumor metastasis modeling and precision drug development ...
Aoqi Wang, Jiajia Liu, Jianguo Wen, Yangyang Luo, Zhiwei Fan, Liren Yang, Xi Hu, Ruihan Luo, Yankai Yu, Sophia Li, Weiling Zhao, Xiaobo Zhou   +11 more
wiley   +1 more source

Design and Implementation of a GaN-Based Composite Hybrid Switched-Capacitor DC-DC Converter for Space Applications

IEEE Open Journal of Power Electronics
To enable next generation robotic space exploration, innovations in the area of high step-down voltage converters is necessary. This work explores the use of multilevel hybrid switched-capacitor power converters which have unique advantages in mass ...
Samantha Coday, Elisa Krause, Margaret E. Blackwell, Rahul K. Iyer, Nathan M. Ellis, Ansel Barchowsky, Robert C.N. Pilawa-Podgurski   +6 more
doaj   +1 more source

Multilevel converters -- A new breed of power converters [PDF]

, 1995
Multilevel voltage source converters are emerging as a new breed of power converter options for high-power applications. The multilevel voltage source converters typically synthesize the staircase voltage wave from several levels of dc capacitor voltages.
Peng, F.Z., Lai, J.S.
core  

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

Advanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Intelligent Fault Diagnosis Framework for Modular Multilevel Converters in HVDC Transmission. [PDF]

Sensors (Basel), 2022
Ahmed HOA, Yu Y, Wang Q, Darwish M, Nandi AK.   +4 more
europepmc   +1 more source