Results 21 to 30 of about 420,285 (299)

Multiple-Fault-Tolerant Strategy for Three-Phase Hybrid Active Neutral Point Clamped Converters Using Enhanced Space Vector Modulation Technique

open access: yesIEEE Access, 2020
In recent decades, renewable energy has become an important part of the power generation field. In any renewable energy system, power converters form the dominant part, owing to their important role.
Laith M. Halabi   +2 more
doaj   +1 more source

Semiconductor loss calculation of DC–DC modular multilevel converter for HVDC interconnections

open access: yesHigh Voltage, 2018
DC–DC modular multilevel converter (DC–DC MMC) is an attractive candidate for high-voltage DC (HVDC) interconnections since it can provide the required voltage matching, galvanic isolation and flexible power control abilities.
Shanshan Zhao, Yu Chen, Li Peng
doaj   +1 more source

Novel immense configurations of boost converter for renewable energy application

open access: yesThe Journal of Engineering, 2019
A three-immense configurations of boost converter for renewable energy application is presented here. The voltage lift switched inductor (VLSI) structure is pledged to extra high-voltage conversion.
Pandav Kiran Maroti   +4 more
doaj   +1 more source

Switched-capacitor immittance convertors using a single operational amplifier

open access: yesElectronics Letters, 1980
The improved switched-capacitor immittance convertors using a single operational amplifier are proposed. The general scheme which enables the conversion of the capacitive (n + 1)-terminal networks into the corresponding bilinearly equivalent networks consisting of LC parallel branches is also proposed.
T. Inoue, F. Ueno
openaire   +1 more source

Common mode voltage elimination in dual-inverter-fed six-phase open-end winding PMSM drives with a single DC supply

open access: yesThe Journal of Engineering, 2019
This paper proposes a space vector pulse width modulation (SVPWM) technique to eliminate common mode voltage (CMV) and common mode current for dual-inverter six-phase open-end winding PMSM motor drive fed from a single DC supply.
Mounir Mekasser, Qiang Gao, Cai Xu
doaj   +1 more source

Perspectives of Convertors and Communication Aspects in Automated Vehicles, Part 1: Convertors and Condition Monitoring

open access: yesEnergies, 2021
A critical survey has been conducted on high energy-efficient bidirectional converters, various topologies that effectively meet the automated vehicle requirements, and 24 GHz/77 GHz low-profile antennas (for automotive radar applications).
U. Mohan Rao   +5 more
doaj   +1 more source

High step-up interleaved boost converter utilising stacked half-bridge rectifier configuration

open access: yesThe Journal of Engineering, 2019
This paper proposes a solution to complement the insufficient voltage gain and voltage stress distribution of classical interleaved boost converter in high step-up application.
Musbahu Muhammad   +3 more
doaj   +1 more source

Scorpion DAC: a new family of switched-capacitor D/A convertors

open access: yesElectronics Letters, 1986
The theory of the simulated capacitor or resistor array parasitic-insensitive/offset-nulling (SCORPION) digital to analogue convenor (DAC) is presented. This unique DAC architecture features high speed, high modularity, reduced 1/f noise and excellent economy. The properties of this DAC allow modular development of n-bit DACs in MOS.
R.M. Payton, M. Savic
openaire   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Detailed quantitative comparison of half-bridge modular multilevel converter modelling methods

open access: yesThe Journal of Engineering, 2019
This paper presents a detailed comparison of different modelling methods of the half-bridge modular multilevel converter (HB-MMC), namely, switching function, Thevenin equivalent, and averaged, considering both MMC implementations (large and reduced ...
Deyang Guo   +6 more
doaj   +1 more source

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