Results 21 to 30 of about 404 (137)

Comparison between Radial and Halbach Array PMLSM by Employing 2-D Electromagnetic Finite Element Analysis [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2016
The replacement of steam catapults with electromagnetic ones is becoming an overwhelming trend in aircraft launch systems. The Electromagnetic Aircraft Launch System (EMALS) offers significant benefits to the aircraft, ship, personnel, and operational ...
H. Moradi CheshmehBeig   +1 more
doaj   +1 more source

Speed Control of Segmented PMLSM Based on Improved SMC and Speed Compensation Model

open access: yesEnergies, 2020
A segmented control model including an improved sliding model control (SMC) and a speed compensation model is applied into the speed control of a segmented permanent magnet linear synchronous motor (PMLSM) to improve the speed precision during the drive ...
Tong Wen   +3 more
doaj   +1 more source

Research on Air Gap Magnetic Field Characteristics of Trapezoidal Halbach Permanent Magnet Linear Synchronous Motor Based on Improved Equivalent Surface Current Method

open access: yesEnergies, 2023
Accurate analysis of the air gap magnetic field is the focus of research in the field of precision permanent magnet linear synchronous motors. In this paper, the two-dimensional air gap magnetic field of a secondary trapezoidal Halbach permanent magnet ...
Bo Li   +4 more
doaj   +1 more source

Robust decoupled synchronization control of dual‐motor servo systems by mechanical parameter identification

open access: yesIET Power Electronics, Volume 15, Issue 14, Page 1490-1501, 4 November 2022., 2022
Abstract In the dual‐motor servo system driven by permanent magnet linear synchronous motor, a synchronous control strategy based on coupling parameter identification algorithm and feedback linearization decoupling controller is proposed to overcome the influence of mechanical coupling on the synchronous control performance of the system.
Kang Zhang, Limei Wang, Xin Fang
wiley   +1 more source

Mechanical system and dynamic control in photolithography for nanoscale fabrication: A critical review

open access: yesInternational Journal of Mechanical System Dynamics, Volume 1, Issue 1, Page 35-51, September 2021., 2021
Abstract As one of the most advanced and precise equipment in the world, a photolithography scanner is able to fabricate nanometer‐scale devices on a chip. To realize such a small dimension, the optical system is the fundamental, but the mechanical system often becomes the bottleneck. In the photolithography, the exposure is a dynamic process.
Yi Song   +4 more
wiley   +1 more source

Extended State Observer-Based IMC-PID Tracking Control of PMLSM Servo Systems

open access: yesIEEE Access, 2021
Servo systems driven by a permanent magnet linear synchronous motor (PMLSM) are often affected by uncertain disturbances, such as magnetic resistance, friction, and external disturbances, which increase tracking errors and reduce motion accuracy ...
Yachao Liu   +3 more
doaj   +1 more source

A Review on Disturbance Analysis and Suppression for Permanent Magnet Linear Synchronous Motor

open access: yesActuators, 2021
In high-end testing and manufacturing equipment, a trend exists whereby the traditional servo feed system with a ball screw and rotary motor will gradually be replaced by a direct drive system.
Xuezhen Wang   +6 more
doaj   +1 more source

Design and Development of Permanent Magnet Linear Synchronous Motor (PMLSM)

open access: yesIndian Journal of Science and Technology, 2017
Background/Objectives: A steady increase in industrial applications has secured an important place for linear electric motors. This paper deals with the design, development and electromagnetic analysis of PMLSM for conveyor and transit applications.
N. C. Lenin   +2 more
openaire   +1 more source

Comparison of rare‐earth and hybrid‐magnet mover configurations for a permanent magnet synchronous linear motor

open access: yesIET Electric Power Applications, Volume 15, Issue 3, Page 321-331, March 2021., 2021
Abstract Force ripple and cost reduction are two of the main challenges in optimising the design and increasing the market uptake of permanent magnet synchronous linear motors (PMSLM). Two mover configurations are compared in depth; one made entirely from rare‐earth materials while another consisting of a hybrid (rare‐earth/ferrite) magnet layout ...
Xiaomei Liu   +6 more
wiley   +1 more source

Integrated Predictive Control of PMLSM Current and Velocity Based on ST-SMO

open access: yesEnergies, 2022
To enhance the control performance of a permanent magnet linear synchronous motor (PMLSM) and to improve its dynamic response performance and steady-state accuracy, a PMLSM model predictive integrated control (MPC) system based on a super-twisting ...
Shenhui Du   +5 more
doaj   +1 more source

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