Results 21 to 30 of about 2,328,838 (263)

Dahlin-Based Fast and Robust Current Control of a PMSM in Case of Low Carrier Ratio

open access: yesIEEE Access, 2019
The low ratio of sampling frequency to electrical frequency (carrier ratio) is a challenging issue for applications, such as high-speed or high-power drives.
Stefan Walz   +3 more
doaj   +1 more source

A Review of Multilevel Inverter Topologies in Electric Vehicles: Current Status and Future Trends

open access: yesIEEE Open Journal of Power Electronics, 2021
Traction inverter, as a critical component in electrified transportation, has been the subject of many research projects in terms of topologies, modulation, and control schemes.
A. Poorfakhraei, M. Narimani, A. Emadi
semanticscholar   +1 more source

Steady‐state power operation region of a modular multilevel converter connecting to an AC grid

open access: yesHigh Voltage, 2021
The modular multilevel converter (MMC) has become a widely used topology for voltage source converter–based high‐voltage direct current transmission projects.
Jiecong Wang   +4 more
doaj   +1 more source

Low cogging torque design and simplified model-free predictive current control for radial-flux dual three-phase permanent magnet electric machines

open access: yesAdvances in Mechanical Engineering, 2019
This study presents two improved designs of eccentric-shaped permanent magnets and teeth-shaped stators in radial-flux dual three-phase permanent magnet electric machines to reduce cogging torque and torque ripple.
Hsing-Cheng Yu   +3 more
doaj   +1 more source

Stability analysis and nonlinear current-limiting control design for DC micro-grids with CPLs

open access: yesIET Smart Grid, 2020
In this study, a DC micro-grid consisting of multiple paralleled energy resources interfaced by both bidirectional AC/DC and DC/DC boost converters and loaded by a constant power load (CPL) is investigated. By considering the generic dq transformation of
Andrei-Constantin Braitor   +3 more
doaj   +1 more source

Predictive current control in electrical drives: an illustrated review with case examples using a five‐phase induction motor drive with distributed windings

open access: yesIET electric power applications, 2020
The industrial application of electric machines in variable-speed drives has recently grown thanks to the development of microprocessors and power converters.
M. Bermúdez   +5 more
semanticscholar   +1 more source

An Optimal Control Algorithm with Reduced DC-Bus Current Fluctuation for Multiple Charging Modes of Electric Vehicle Charging Station

open access: yesWorld Electric Vehicle Journal, 2021
This paper presents a systematic structure and a control strategy for the electric vehicle charging station. The system uses a three-phase three-level neutral point clamped (NPC) rectifier to drive multiple three-phase three-level NPC converters to ...
Tao Chen   +6 more
doaj   +1 more source

All optical quantum control of a spin-quantum state and ultrafast transduction into an electric current [PDF]

open access: yesScientific Reports, 2012
The ability to control and exploit quantum coherence and entanglement drives research across many fields ranging from ultra-cold quantum gases to spin systems in condensed matter.
K. Müller   +8 more
semanticscholar   +1 more source

Electrode Materials for Supercapacitors in Hybrid Electric Vehicles: Challenges and Current Progress

open access: yesCondensed Matter, 2022
For hybrid electric vehicles, supercapacitors are an attractive technology which, when used in conjunction with the batteries as a hybrid system, could solve the shortcomings of the battery. Supercapacitors would allow hybrid electric vehicles to achieve
S. Rajagopal   +3 more
semanticscholar   +1 more source

Decreased cold‐sensing function of the transient receptor potential channel TRPM8 from tailed amphibians

open access: yesFEBS Open Bio, EarlyView.
Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao   +3 more
wiley   +1 more source

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