Results 21 to 30 of about 2,142,072 (286)
Reliability of DC-link Capacitors in Three-Level NPC Inverters under different PWM Methods [PDF]
, 2022 Pulse-width modulation (PWM) method plays an important role to ensure high efficiency and reliability of the three-level neutral-point-clamped (NPC) inverter.
Sangwongwanich, Somboon +3 more
core +1 more source
Packed E-Cell (PEC) Converter Topology Operation and Experimental Validation
IEEE Access, 2019 This paper proposes a novel single-dc-source multilevel inverter called Packed E-Cell (PEC) topology to achieve nine levels with noticeably reduced components count, while dc capacitors are actively balanced.
Mohammad Sharifzadeh, Kamal Al-Haddad
doaj +1 more source
Efficiency and Power Loss Distribution in a High-Frequency, Seven-Level Diode-Clamped Inverter
Energies, 2023 The paper presents efficiency and power loss analysis in a high-frequency, seven-level diode-clamped inverter (7LDCB). The inverter is composed of four-level (4L) diode-clamped branches based on MOSFET transistors and Si Schottky diodes.
Robert Stala +4 more
doaj +1 more source
IEEE Access, 2021 Three-port intelligent conversion systems, interfacing photovoltaic (PV) arrays and electric vehicles (EVs), with an electrical grid, are a promising flexible infrastructure for future smart grids.
Zhigang Zhang, Bin Liu, Shaojian Song
doaj +1 more source
, 2013 A neutral-point-clamped three-level inverter with small dc-link capacitors is presented in this paper. The inverter requires zero average neutral-point current for stable neutral–point voltage.
Munk-Nielsen, Stig +2 more
core +2 more sources
A high-reliability PV system by replacing electrolytic capacitors with film capacitors
Energy Reports, 2023 Electrolytic capacitors are considered a vulnerable link in PV systems. In order to enhance the system reliability and lifespan, this paper investigates a PV system without electrolytic capacitors. First, the system structure is introduced.
Wenping Zhang +4 more
doaj +1 more source
Estimation of Current RMS for DC Link Capacitor of S-PMSM Drive System
Kongzhi Yu Xinxi Jishu, 2023 The six-phase permanent magnet synchronous motor (PMSM) drive system has the characteristics of low voltage, high power, small torque ripple, flexible control, and high fault tolerance compared with traditional three-phase PMSM drive systems. The DC link
ZHANG Zhigang +2 more
doaj +3 more sources
Lifetime Prediction of DC-link Capacitors in Multiple Drives System Based on Simplified Analytical Modeling [PDF]
, 2021 Lifetime prediction of dc-link capacitors in a single drive has been discussed before, which indicates that the capacitor in a standard drive meets serious reliability challenges and in a slim drive does not.
Huang, Shili +6 more
core +1 more source
A Transient-Modeling-Based Grey-Box Method for Online Monitoring of DC-Link Capacitors [PDF]
, 2023 This article proposes a suitable grey-box method for online monitoring of dc-link capacitors. It is found that the transient behavior of dc-link voltage in ac/dc and dc/dc converters is similar to the zero-state response of a parallel resistor-inductor ...
Haitao Hu +13 more
core +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source