Results 21 to 30 of about 404 (137)
Comparison between Radial and Halbach Array PMLSM by Employing 2-D Electromagnetic Finite Element Analysis [PDF]
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
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
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
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
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
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
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)
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
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
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

