Title:
MOVING ARMATURE SEGMENTED PERMANENT MAGNET SYNCHRONOUS LINEAR MOTOR AND DRIVING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/201634
Kind Code:
A1
Abstract:
A moving armature segmented permanent magnet synchronous linear motor and a driving control method, solving the problems of how to effectively reduce the thrust fluctuation of motors and increase the thrust density of the motors, and relating to the field of permanent magnet synchronous linear motors. The motor of the present invention comprises: a stator and a mover, wherein the mover comprises m moving armature units, each moving armature unit is an armature mover, each armature mover is independently controlled to operate, the m moving armature units are arranged in the axial direction of the motor, the distance between every two adjacent moving armature units is D, D=T/m, T represents a thrust fluctuation period, and m is an integer greater than or equal to 2; and a power supply driving module used for inputting alternating current into phases of the moving armature units, the alternating current being determined according to thrust ripples caused by harmonic waves eliminated by ripple phase differences among different moving armature units, and the thrust ripples being in sinusoidal variation. According to the motor of the present invention, thrust ripples caused by multiple magnetic fields can be eliminated, and the effective thrust of the motor is improved.
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Inventors:
WANG MINGYI (CN)
SUN QINWEI (CN)
KANG KAI (CN)
LI LIYI (CN)
SUN QINWEI (CN)
KANG KAI (CN)
LI LIYI (CN)
Application Number:
PCT/CN2022/088209
Publication Date:
October 26, 2023
Filing Date:
April 21, 2022
Export Citation:
Assignee:
HARBIN INST TECHNOLOGY (CN)
International Classes:
H02P25/064; H02K41/03
Foreign References:
| CN106411096A | 2017-02-15 | |||
| CN110098703A | 2019-08-06 | |||
| CN107493004A | 2017-12-19 | |||
| CN103872876A | 2014-06-18 | |||
| US20180237996A1 | 2018-08-23 | |||
| JP2011067030A | 2011-03-31 |
Attorney, Agent or Firm:
HARBIN SONGHUAJIANG PATENT TRADEMARK OFFICE (CN)
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