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Performance estimation of interior permanent-magnet brushless motors using the voltage-driven flux-MMF diagram [PDF]

open access: yes, 2006
The flux-magnetomotive force (flux-MMF) diagram, or "energy conversion loop," is a powerful tool for computing the parameters of saturated interior permanent-magnet brushless motors, especially when the assumptions underlying classical dq theory are not ...
Cossar, C.   +3 more
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, Volume 43, Issue 6, Page 3868-3892, September 2026.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Design and Analysis of Brushless Multiphase Synchronous Generator With Dual-Pole Six-Phase Symmetrical Winding

open access: yesIEEE Open Journal of Industry Applications
Brushless wound-field synchronous machines (WFSMs) have long been employed in a wide range of applications due to their maintenance-free operation and high reliability.
Sagar Kumar Dash   +3 more
doaj   +1 more source

Simulation of Outer Rotor Permanent Magnet Brushless DC Motor Using Finite Element Method for Torque Improvement

open access: yesModelling and Simulation in Engineering, 2012
A method of simulation and modeling outer rotor permanent magnet brushless DC (ORPMBLDC) motor under dynamic conditions using finite element method by FEMM 4.2 software package is presented.
Uma Devi Kumaravelu   +1 more
doaj   +1 more source

Novel Single Inverter-Controlled Brushless Wound Field Synchronous Machine Topology

open access: yesMathematics, 2021
This paper proposes a novel brushless excitation topology for a three-phase synchronous machine based on a customary current-controlled voltage source inverter (VSI).
Syed Sabir Hussain Bukhari   +5 more
doaj   +1 more source

De‐Carbonizing the Transport Sector on the University Campus: A Techno‐Economic‐Environment Assessment and Optimization of PV Fed Electric Bicycles Amid Global Fuel Crisis

open access: yesEnergy Science &Engineering, Volume 14, Issue 8, Page 3788-3810, August 2026.
This study develops and evaluates a solar PV‐fed electric bicycle system optimized for university campuses in Pakistan. The techno‐economic analysis demonstrates significant fuel savings, emission reductions, and sustainability benefits, promoting a cost‐effective, eco‐friendly, and renewable transportation alternative amid rising global fuel and ...
Muhammad Abdullah Khan   +4 more
wiley   +1 more source

Influence of Temperature on Brushless Synchronous Machine Field Winding Interturn Fault Severity Estimation

open access: yesApplied Sciences
There are numerous methods for detecting interturn faults (ITFs) in the field winding of synchronous machines (SMs). One effective approach is based on comparing theoretical and measured excitation currents. This method is unaffected by rotor temperature
Rubén Pascual   +4 more
doaj   +1 more source

Use of Discharge Resistor to Improve Transient De-Excitation in Brushless Synchronous Machines

open access: yesEnergies, 2019
The discharge resistor is only used in case of electrical trip to reduce the field current as fast as possible and to minimize the damages produced by the short-circuit current supplied by the synchronous machine. The connection of the discharge resistor
Emilio Rebollo   +3 more
doaj   +1 more source

Brushless Field Excitation Scheme for Wound Field Synchronous Machines

open access: yesApplied Sciences, 2020
A new harmonic field excitation technique for the brushless operation of wound field synchronous machines (WFSMs) is proposed in this paper. The proposed scheme involves conventional three-phase and single-phase inverters operating at different ...
Syed Sabir Hussain Bukhari   +3 more
doaj   +1 more source

Design Method for Variable Frequency Brushless Synchronous Generators

open access: yesEnergies, 2022
Brushless synchronous generators, which have the structure of three-stage generators to realize brushless excitation, are the most commonly used aero-generators.
Yongjie Wang   +4 more
doaj   +1 more source

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