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 Sensorless control strategy on permanent-magnet planar motor with moving-coils
(PDF)

[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2018年11
Page:
114-120
Research Field:
Publishing date:

Info

Title:
 Sensorless control strategy on permanent-magnet planar motor with moving-coils
Author(s):
 LU Hua-cai RUAN Guang-zheng GUO Xin-xin
 ( College of Electrical Engineering,Anhui Polytechnic University,Wuhu 241000,China)
Keywords:
 Keywords: permanent-magnet planar motor with moving-coils Halbach array real-time current distribution
sensorless control
Kalman filter
PACS:
TP 13
DOI:
10.15938/j.emc.2018.11.015
Abstract:
 To solve sensorless control problem of moving-coil permanent magnet planar motor, the following sensorless control strategy was put forward: based on circuit energy conservation,Kalman filtering estimation algorithm was utilized to conduct state estimation for achieving mover position information to distribute real-time current,which produces levitation force and horizontal thrust acting on active cells to control sensorless. The strategy can constantly obtain terminal voltage and current from moving coils to export
total power and get the mechanical power acting on the mover through subtracting the thermal power consumed by the moving coils. The mechanical power reacts the size of the displacement in the mover sampling interval under constant thrust control, so as to establish Kalman filtering estimation algorithm model of the position,velocity and acceleration of the mover. On this basis, taking a simulation for the thrust coming from the control algorithm and the control strategy,and the simulation result was verified
that the control strategy is correct.

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Last Update: 2018-12-10