Results 21 to 30 of about 193 (128)
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
IEEE Access, 2020 The permanent magnet linear synchronous motor (PMLSM) with segmented stator is applied in the long-distance auto-transportation system. For the PMLSM with the discontinuous stators, the mismatch between the permanent magnet (PM) mover and the stator ...
Tong Wen +4 more
doaj +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
Impact of permanent magnet field on inductance variation of a PMLSM [PDF]
2007 European Conference on Power Electronics and Applications, 2007 Analytical models of Surface Mounted Permanent Magnet Linear Synchronous Motors are generally presented with constant inductances. However, the impact of powerful rare-earth PMs in the saturation phenomena cannot be neglected anymore. In this paper, a new non-linear model of PMLSM inductances is suggested.
Gomand, Julien +4 more
openaire +3 more sources
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