Results 271 to 280 of about 219,041 (325)

High-Performance Second-Order Sliding Mode Control for NPC Converters

IEEE Transactions on Industrial Informatics, 2020
In this article, a linear extended state observer (LESO) based second-order sliding mode (SOSM) control strategy with the direct power control is proposed for a three-phase neutral-point-clamped (NPC) power converter connected to a dc microgrid ...
Xiaoning Shen, Jianxing Liu, Wensheng Luo, J. I. Leon, S. Vazquez, A. M. Alcaide, L. Franquelo, Ligang Wu   +7 more
semanticscholar   +1 more source

Ru–Ru2PΦNPC and NPC@RuO2 Synthesized via Environment‐Friendly and Solid‐Phase Phosphating Process by Saccharomycetes as N/P Sources and Carbon Template for Overall Water Splitting in Acid Electrolyte

Advanced Functional Materials, 2019
Although numerous ruthenium‐based phosphates possess high catalytic activities for hydrogen evolution reaction (HER), most of them rely on dangerous and toxic synthesis routes.
Jiayuan Yu, Guixiang Li, Hui Liu, Lili Zhao, Aizhu Wang, Zhen Liu, Haidong Li, Hong Liu, Yongyou Hu, Weijia Zhou   +9 more
semanticscholar   +1 more source

Observer-Based Adaptive Sliding Mode Control of NPC Converters: An RBF Neural Network Approach

IEEE transactions on power electronics, 2019
This paper proposes a novel control strategy for three-level neutral-point-clamped (NPC) power converter. The proposed control scheme consists of three control loops, i.e., instantaneous power tracking control loop, voltage regulation loop, and voltage ...
Yunfei Yin, Jianxing Liu, J. Sanchez, Ligang Wu, S. Vazquez, J. I. Leon, L. Franquelo   +6 more
semanticscholar   +1 more source

Finite-Time Sliding Mode Control for NPC Converters With Enhanced Disturbance Compensation

IEEE Transactions on Circuits and Systems Part 1: Regular Papers
In this paper, a generalized proportional integral observer (GPIO)-based finite-time sliding mode control scheme is proposed to enhance the convergence rate and disturbance rejection capacity of the grid-connected three-level neutral-point-clamped (NPC ...
Xiaoning Shen, Jianxing Liu, Guangxin Liu, Jianhua Zhang, Jose I. Leon, Ligang Wu, L. Franquelo   +6 more
semanticscholar   +1 more source

A Flexible Discontinuous Modulation Scheme With Hybrid Capacitor Voltage Balancing Strategy for Three-Level NPC Traction Inverter

IEEE transactions on industrial electronics (1982. Print), 2019
Multilevel inverters are now-a-days being applied in electric vehicles (EV). Considering the dynamic operating conditions of an EV propelled by an induction motor, this paper proposes a flexible discontinuous modulation strategy for three-level neutral ...
S. Mukherjee, S. Giri, Subrata Banerjee
semanticscholar   +1 more source

A Generalized Discontinuous PWM Scheme for Three-Level NPC Traction Inverter With Minimum Switching Loss for Electric Vehicles

IEEE transactions on industry applications, 2019
A discontinuous pulsewidth modulation (DPWM) strategy for three-level neutral-point-clamped (NPC) traction inverter drive for electric vehicles (EVs) with minimum switching loss for the full power factor (PF) range is developed and presented in this ...
S. Mukherjee, Santu Kumar Giri, Sourabh Kundu, Subrata Banerjee   +3 more
semanticscholar   +1 more source

A Uniform Modeling Method Based on Open-Circuit Faults Analysis for NPC-Three-Level Converter

IEEE Transactions on Circuits and Systems - II - Express Briefs, 2019
A uniform modeling method for the neutral point clamped (NPC)-three-level converter is proposed based on open-circuit faults analysis. The main contributions of this brief are twofold. One is the proposed model can represent the converter not only in the
Tao Peng, Hongwei Tao, Chao Yang, Zhi-wen Chen, Chunhua Yang, W. Gui, H. Karimi   +6 more
semanticscholar   +1 more source

Nasopharyngeal Carcinoma (NPC)

1972
Publisher Summary This chapter reviews the etiology of nasopharyngeal carcinoma (NPC) that has recently attracted worldwide interest because a high titer of antibodies to Epstein-Barr virus (EBV), which is suspected to have oncogenic properties, have been found with unusual frequency among patients with this neoplasm compared with the controls from ...
openaire   +2 more sources

A Novel NPC Dual-Active-Bridge Converter With Blocking Capacitor for Energy Storage System

IEEE transactions on power electronics, 2019
In recent years, dc microgrids have been widely concerned for natural interface with renewable energy sources, dc loads, and energy storage systems (ESS). A novel neutral point clamped (NPC) dual-active-bridge (DAB) converter with a blocking capacitor is
Yang Xuan, Xu Yang, Wenjie Chen, Tao Liu, X. Hao   +4 more
semanticscholar   +1 more source

Rethinking NPC intelligence

Proceedings of the Seventh International Conference on Motion in Games, 2014
Creating more believable Non-Player Characters (NPCs) is a significant challenge for video game researchers and industry designers alike. While researchers explore a myriad of solutions, one somewhat forgotten solution area is NPC reputation systems.
John Mooney, Jan M. Allbeck
openaire   +1 more source