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To improve the tracking precision, integrated control strategy of Permanent Magnet Linear Synchronous Motor (PMLSM) based on sliding mode control and repetitive control was proposed in this paper. Because PMLSM is easily affected by the periodic thrust fluctuation caused by the end effect, the periodic friction and other aperiodic disturbance during operating. The speed controller and the current...
In this paper, a motion control IC for linear motor drive X-Y table using FPGA (Field programmable gate array) technology is presented. Firstly, the mathematical model of the X-Y table is defined. Secondly, an adaptive fuzzy controller (AFC) is introduced and adopted in position loop of X-Y table to improve the motion tracking performance under unmodelled uncertainty condition. Thirdly, in implementation,...
This paper proposes a novel sensorless position control system for an interior permanent magnet synchronous motor. In this paper, a novel rotor position estimation technique is proposed. This estimation technique only relates to the slopes of the three-phase stator currents, and does not relate to the parameters or operating conditions of the motor. Neither extra circuit nor external exciting signal...
A new dual digital signal processor board is described for the control of permanent magnet synchronous motors (PMSMs). The circuit has been tested using a 1.5 kW PMSM and characterised over motor speed ranges up to 3000 r.p.m. The use of single chip microcontrollers has proven to be a compact, high performance solution for AC motor closed loop control.<<ETX>>
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