Results 21 to 30 of about 1,684 (260)
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
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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
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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
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Investigation of the Effect of Operating Conditions on Reliability of DC-link Capacitors in Microgrids [PDF]
2020 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe), 2020 This paper considers a microgrid system where the impact of different non-ideal operating conditions on the reliability of the DC-link capacitor in three phase inverter systems is investigated. Rather than focusing on the lifetime of the capacitor, its failure rate is investigated and deemed a valuable indicator of the system’s reliability. The thermal
Berg, Sondre Johan Kjellin +3 more
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Advanced Engineering Materials, EarlyView.This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera +8 more
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Energies, 2018 In three-level neutral-point-clamped (NPC) inverters, the voltage imbalance problem between the upper and lower dc-link capacitors is one of the major concerns.
Kyoung-Pil Kang +3 more
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Ain Shams Engineering Journal, 2021 Brushless DC motors have been widely used in both industrial and non-industrial applications. Commercialization of these drives by reducing their price and increasing reliability, are among the main goals of manufacturers and researchers.
Ehsan Boloor Kashani +1 more
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Advanced Engineering Materials, EarlyView.A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer +3 more
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Machines, 2022 The study sets a baseline for split DC link capacitance values and voltage set points in three-phase three-level AC/DC (or DC/AC) converters operating with unity power factor.
Yarden Siton +3 more
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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
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