Results 31 to 40 of about 490 (162)
IET Power Electronics, Volume 16, Issue 13, Page 2192-2202, 14 October 2023., 2023 Because of the zero‐transmission structure of the direct drive system, the feedback harmonics caused by the disturbances will be coupled with the detent force and intensify the couplings among different sources of thrust harmonics, which will produce new thrust harmonics, deteriorating the dynamic precision and efficiency of the motion system ...
Xiaojun Yang +3 more
wiley +1 more source
IET Electric Power Applications, Volume 17, Issue 9, Page 1212-1224, September 2023., 2023 In this study, the characteristic model of the motor position control link is constructed, and the intelligent adaptive controller is designed to improve the tracking accuracy and anti‐interference ability of the system. In addition, a new calculation method of the equivalent contour error is proposed innovatively, and the dual axes are compensated by ...
Zheng Li +5 more
wiley +1 more source
Speed Control of Segmented PMLSM Based on Improved SMC and Speed Compensation Model
Energies, 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
Calculation and analysis of the unbalanced magnetic thrust for the linear motor drive motion system
IET Electric Power Applications, Volume 17, Issue 6, Page 867-878, June 2023., 2023 The unbalanced magnetic thrust caused by the mover eccentricity for the linear motor drive motion system considering the mechanical installation errors and vibrations is analytically represented. The effects on the thrust force characteristics of the unbalanced magnetic thrust are investigated.
Xiaojun Yang, Jianlin Xuan, Zhaohui Yang
wiley +1 more source
Electromagnetic Design of Toroidal Permanent Magnet Linear Synchronous Motor
IEEE Access, 2021 For the permanent magnet linear synchronous motors (PMLSM) with high-speed and large-thrust under the periodic transient conditions, the corresponding length and cost requirements are large. This paper designs a toroidal long primary PMLSM.
Yinhao Mao +4 more
doaj +1 more source
IET 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
IET Control Theory &Applications, Volume 15, Issue 18, Page 2344-2354, December 2021., 2021 Abstract Iterative learning control (ILC) has been widely used to improve motion performance when reference trajectories and external disturbances are strictly repetitive. However, the occurrence of non‐repetitive trajectories and disturbances would significantly deteriorate the performance of traditional ILC methods.
Weike Liu +4 more
wiley +1 more source
Extended State Observer-Based IMC-PID Tracking Control of PMLSM Servo Systems
IEEE 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
International 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
A Review on Disturbance Analysis and Suppression for Permanent Magnet Linear Synchronous Motor
Actuators, 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