Results 21 to 30 of about 16,884 (273)

Thrust Coordinated Assignment and Ripple Suppression of a Multiple-Modular Permanent Magnet Linear Synchronous Motor Based on Model Predictive Thrust Control

open access: yesEnergies, 2023
This paper presents a model predictive thrust force control (MPTFC) method for a multiple-modular permanent magnet synchronous linear motor (PMSLM). It focuses on the thrust assignment and thrust ripple of the motor drive system with a multiple-branch ...
Kai Zuo   +7 more
doaj   +1 more source

Design and testing of a contra-rotating tidal current turbine [PDF]

open access: yes, 2005
A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
Clarke, J. A.   +3 more
core   +4 more sources

Suppressing the Thrust Ripple of the Consequent-Pole Permanent Magnet Linear Synchronous Motor by Two-Step Design

open access: yesIEEE Access, 2018
This paper investigates the thrust ripple of a consequent-pole permanent magnet linear synchronous motor (CP-PMLSM). The components of the thrust ripple are analyzed through the comparison of the thrust waves' constituent frequencies.
Xuzhen Huang   +5 more
doaj   +1 more source

Performance Modeling and Analysis of a Doubly Yokeless Permanent Magnet Linear Motor With Improved Thrust Force Quality

open access: yesIEEE Access, 2019
Permanent magnet linear motors (PMLM) have gained increased popularities in a wide range of applications. However, they generally suffer from considerably lower force densities.
Qian Wang   +4 more
doaj   +1 more source

Constrained Multi-Objective Optimization for Double-Sided Tubular Machine With Hybrid Segmented PM

open access: yesIEEE Access, 2023
Double-sided tubular machines (DSTM) have greatly improved space utilization and power density, and are widely used in tidal power generation and high-power electric drives, while the thrust force ripple is also significant.
Liang Guo, Minjie Lei, Mian Weng
doaj   +1 more source

Investigation of New IPM Linear Machine Configuration with Low Permanent Magnet Used [PDF]

open access: yesEngineering and Technology Journal, 2020
Permanent magnet (PM) machines have received numerous attentions, since they are distinguished by many desirable features including simple construction and high efficiency.
Ahlam Shuraiji   +2 more
doaj   +1 more source

Pole Optimization and Thrust Ripple Suppression of New Halbach Consequent-Pole PMLSM for Ropeless Elevator Propulsion

open access: yesIEEE Access, 2020
Permanent magnet linear synchronous motors (PMLSM) has the advantages of high speed, high thrust density, high power density, high power factor and high reliability. In order to save permanent magnet (PM) materials and reduce magnetic leakage, a new type
Xiaozhuo Xu   +3 more
doaj   +1 more source

An Extended Model for Ripple Analysis of 2–4 Phase Resonant Electrostatic Induction Motors

open access: yesActuators, 2021
Electrostatic motors are promising forms of actuation for future robotic devices. The study of their different implementations should accelerate their adoption.
Fernando Carneiro   +4 more
doaj   +1 more source

Design and implementation of a linear motor for multi-car elevators [PDF]

open access: yes, 2008
The multi-car elevator system is a revolutionary new technology for high-rise buildings, promising outstanding economic benefits, but also requiring new technology for propulsion, safety and control.
Kazan, Ender   +5 more
core   +2 more sources

Enhancing Capabilities of Double Sided Linear Flux Switching Permanent Magnet Machines

open access: yesEnergies, 2018
Double sided linear flux switching permanent magnet machines (DSLFSPMMs) exhibit high thrust force density, high efficiency, low cost and robust double salient secondary (stator) structures.
Noman Ullah   +5 more
doaj   +1 more source

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