Optimal design of slotted iron core type permanent magnet linear synchronous motor for ropeless elevator system

2010 ◽  
Author(s):  
Yu-wu Zhu ◽  
Sang-geon Lee ◽  
Yun-hyun Cho
Keyword(s):  
Optimal Design ◽  
Permanent Magnet ◽  
Synchronous Motor ◽  
Iron Core ◽  
Linear Synchronous Motor

Detent Force Modeling and Analysis for Vertical Permanent-Magnet Linear Synchronous Motor Using Equivalent Magnetic Network Method

2011 ◽  
Vol 143-144 ◽  
pp. 148-153 ◽  
Author(s):  
Xiao Zhuo Xu ◽  
Xu Dong Wang ◽  
Hai Chao Feng ◽  
Ji Kai Si
Keyword(s):  
Permanent Magnet ◽  
Equivalent Circuit Model ◽  
Synchronous Motor ◽  
Iron Core ◽  
Modeling And Analysis ◽  
Force Modeling ◽  
Detent Force ◽  
Linear Synchronous Motor ◽  
Calculation Results ◽  
Magnetic Network

This paper investigates the detent force modeling of a slotted iron core type vertical permanent magnet linear synchronous motor (PMLSM) for ropeless elevator applications. Variable network non-linear magnetic equivalent circuit model is established to predict the detent force of PMLSM. The topology structure of equivalent magnetic circuit is developed and the permeances are derived and calculated. The end effect of two end teeth is essential for analysis of detent force and it is focused in the modeling. Magnetic saturation of primary iron-core also be taken into account. In final some 3-D finite-element numerical calculation results are used to validate the feasibility of the proposed method.

Optimal Design of a Double-Sided Permanent Magnet Linear Synchronous Motor for Ropeless Elevator System

2013 ◽  
Vol 416-417 ◽  
pp. 99-103
Author(s):  
Li Ren Huang ◽  
Ji Wei Dong ◽  
Qin Fen Lu ◽  
Yun Yue Ye ◽  
Yi Chen
Keyword(s):  
Permanent Magnet ◽  
Low Cost ◽  
Element Model ◽  
Synchronous Motor ◽  
Underground Mines ◽  
Force Density ◽  
Iron Core ◽  
Linear Synchronous Motor ◽  
Deep Underground ◽  
Force Ripple

The ropeless elevator driven by linear motor is expected to be a new solution to vertical transportation of skyscrapers and the deep underground mines. Due to high thrust force density, low force ripple and low cost etc., a double-sided permanent magnet linear synchronous motor (DPMLSM) with slotted iron core and multi-segment primary is proposed and designed. Based on the erected 2D finite element model, the structure is optimized in order to reduce the detent force. Moreover, the influence of manufacture error on force performance is also investigated. It is shown the proposed DPMLSM is suitable for the ropeless elevator.

Tubular Permanent Magnet Linear Synchronous Motor Thrust Fluctuation Optimization

2011 ◽  
Vol 383-390 ◽  
pp. 5621-5625
Author(s):  
Jing Hong Zhao ◽  
Jun Hong Zhang
Keyword(s):  
Optimal Design ◽  
Theoretical Analysis ◽  
Permanent Magnet ◽  
Flux Density ◽  
Density Wave ◽  
Synchronous Motor ◽  
Linear Motor ◽  
Linear Synchronous Motor ◽  
Practical Engineering ◽  
Thrust Fluctuation

The thrust fluctuation optimal design of the tubular permanent magnet linear synchronous motor is the key to sinusoidal flux density wave degree in theoretical analysis. And the paper analyses the law of different parameters on the flux density waveform. The axial magnetized linear motor is optimized. The measures which inhibited thrust fluctuation is obtained. It has guidance action in motor designing. It has practical engineering value.

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