Given the existence of detent force, positioning accuracy permanent magnet linear synchronous motor (PMLSM) with an iron core worsens in its application field precision drive. To address this problem, a method is proposed to weaken force PMLSM V-shaped tooth-slot structure. The models including cogging and end are established theoretically. analytical expressions obtained by analysing ripple ru...

The advantages of superior power density, high-performance motion control with fast speed and better accuracy, are such that PMLSM (Permanent Magnet Linear Synchronous Motor) are being increasingly used in many automation control fields as actuators (McLean, 1988; Gieras & Piech, 2000; Budig, 2000;), including computer-controlled machining tools, X-Y driving devices, robots, semiconductor manuf...

In high-end testing and manufacturing equipment, a trend exists whereby the traditional servo feed system with ball screw rotary motor will gradually be replaced by direct drive system. The precision motion driven permanent magnet linear synchronous (PMLSM) offers several advantages, including high speed, acceleration, positioning accuracy. However, operating of device affected PMLSM robustness...

Owing to the competitive advantages of fast response speed, large pushing force, high reliability, and precision, permanent magnet linear synchronous motor (PMLSM) has played an increasingly vital role in various high-speed high-precision control systems. However, PMLSM exhibits nonlinear behavior actual operation, position tracking precision is negatively affected by friction, load changes, ot...

For the permanent magnet linear synchronous motor (PMLSM) applied in the high-precision equipment, motor control system should have characteristics of high dynamic response and strong robustness. Predictive current control is an effective method to improve the dynamic response of the system, but it requires accurate motor parameters. This paper presents an improved deadbeat predictive current c...

To enhance the control performance of a permanent magnet linear synchronous motor (PMLSM) and to improve its dynamic response steady-state accuracy, PMLSM model predictive integrated (MPC) system based on super-twisting sliding mode observer (ST-SMO) is proposed. According mathematical PMLSM, this paper designs three-step predict comprehensive correction factor, optimize prediction speed curren...

This paper investigates the detent force modeling and optimization of a iron-core type 16-pole 15-slot permanent magnet linear synchronous motor (PMLSM) for ropeless elevator applications. Variable network non-linear magnetic equivalent circuit (VNMEC) model is established to predict the detent force of PMLSM. The topology structure of equivalent magnetic circuit is developed and the permeance ...

This paper presents a space vector modulation (SVM) technique for two-phase winding segmented permanent magnet linear synchronous motor (WS-PMLSM). First, the advantages of WS-PMLSM are discussed, parameters related to mathematical model analyzed, and SVM is applied implementation sinusoidal voltage inverter. Next, feedforward method proposed considering regularity characteristics mover cross-z...

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 capabilities. EMALS has such advantages as high thrust, good controllability, reusable, etc., as a launching motor, a double-side plate Permanent...

Magnetic pole position detection is the core of closed-loop control system permanent magnet linear synchronous motor (PMLSM), and its estimation accuracy directly affects performance dynamic response speed. In order to solve problem increased error magnetic caused by field distortion at end PMLSM while also considering cost hardware, paper uses four Hall sensors as components adopts an optimize...