Results 61 to 70 of about 5,826 (233)

A Novel Control Scheme for Traction Inverters in Electric Vehicles With an Optimal Efficiency Across the Entire Speed Range

IEEE Access
In the context of the electric vehicle (EV) industry, multi-level inverters (MLIs) have garnered increasing attention due to their potential to harness the advantages of higher DC link voltages.
Yousefreza Jafarian Jelodar, Omid Salari, Mohamed Z. Youssef, Javad Ebrahimi, Alireza Bakhshai   +4 more
doaj   +1 more source

Smooth Switching Method for Multi-Mode Synchronous Space Vector Modulation of NPC Three-Level Inverter

World Electric Vehicle Journal, 2023
To meet the requirements of output harmonic distortion of neutral point clamped (NPC) three-level inverter under low switching frequency conditions, multi-mode synchronous space vector modulation is usually adopted. When switching between different pulse
Guozheng Zhang, Guoao Zhao, Chen Li, Xinmin Li, Xin Gu   +4 more
doaj   +1 more source

A Fault-Tolerant T-Type Multilevel Inverter Topology with Soft-Switching Capability Based on Si and SiC Hybrid Phase Legs [PDF]

, 2016
The performance of a novel three-phase four-leg fault-tolerant T-Type inverter topology is presented in this paper, which significantly improves the inverter\u27s fault-tolerant capability regarding device switch faults.
Demerdash, Nabeel, He, Jiangbiao, Katebi, Ramin, Wei, Lixiang, Weise, Nathan   +4 more
core   +1 more source

Space-vector-modulated three-level inverters with a single Z-source network [PDF]

, 2012
The Z-source inverter is a relatively recent converter topology that exhibits both voltage-buck and voltage-boost capability. The Z-source concept can be applied to all dc-to-ac, ac-to-dc, ac-to-ac, and dc-to-dc power conversion whether two-level or ...
Clare, Jon C., Effah, Francis Boafo, Watson, Alan James, Wheeler, Patrick   +3 more
core   +1 more source

Autocrine Netrin‐1 Signaling in Hepatic Stellate Cells Drives Liver Fibrosis and Diet‐Induced Metabolic Dysfunction‐Associated Steatohepatitis in Mice

Advanced Science, EarlyView.
Netrin‐1 expression is upregulated in hepatic stellate cells (HSCs) during metabolic dysfunction–associated steatohepatitis and injury‐mediated liver fibrosis. Secreted Netrin‐1 establishes an autocrine positive feedback loop by binding to UNC5B receptors on HSCs.
Jiahui Zhao, Yajie Peng, Hongyan Lei, Tianyi Wang, Huajuan Wang, Bo Wang, Jin Li, Xiaoying Li, Xuelian Xiong   +8 more
wiley   +1 more source

A distinguishing method of open-circuit IGBT of three-level NPC inverter

Gong-kuang zidonghua, 2014
For problem of large calculated amount of existing distinguishing method of open-circuit IGBT of three-level NPC inverter, all kinds of open-circuit states of IGBT were simulated, and the causes of bus neutral-point voltage deviation were analyzed, then ...
QIU Shiguang, LI Mei
doaj   +1 more source

An Advanced Three-Level Active Neutral-Point-Clamped Converter With Improved Fault-Tolerant Capabilities [PDF]

, 2017
A resilient fault-tolerant silicon carbide (SiC) three-level power converter topology is introduced based on the traditional active neutral-point-clamped converter.
He, Jiangbiao, Katebi, Ramin, Weise, Nathan   +2 more
core   +1 more source

CD20+FCRL4+ B Cells Activate CD8+ T Cells via MHC‐I Restriction in Nasopharyngeal Carcinoma Anti‐Tumor Immunity

Advanced Science, EarlyView.
CD20⁺FCRL4⁺ B cells in nasopharyngeal carcinoma actively cross‐present exogenous tumor antigens via MHC‐I, enhancing CD8⁺ T‐cell activation, memory formation, and cytotoxicity. IFNγ‐driven WDFY4 upregulation facilitates this process. These findings reveal an unconventional B‐cell–mediated antitumor mechanism and indicate potential relevance to ...
Benjian Zhang, Xiaotian Yuan, Kelei Gao, Bo You, Yaxuan Wang, Lai Meng, Zirong Chen, Shaobing Xie, Yunqing Liu, Zijian Dong, Shumin Xie, Ruohao Fan, Fengjun Wang, Junyi Zhang, Zhihai Xie, Yongzhen Mo, Hua Zhang, Weihong Jiang   +17 more
wiley   +1 more source

Open-Circuit Fault Diagnosis of Neutral Point Clamped Three-Level Inverter Based on Sparse Representation

IEEE Access, 2018
Decomposition of the signal on the orthogonal or nonorthogonal basis of the signal space is the traditional method for fault feature extraction in the field of inverter fault diagnosis.
Yunjun Yu, Shilei Pei
doaj   +1 more source

A Study of Three-Level Neutral Point Clamped Inverter Topology [PDF]

, 2014
The three-level Neutral Point Clamped (NPC) inverter has become matured and widely used topology in high-power medium-voltage applications due to several advantages associated with it as compared to other available multilevel topologies.
Fang, Zhuo, Gautam, Samir, Kashif, Muhammad, Li, Yu, Syed, Ali   +4 more
core   +2 more sources