Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1616
Title: A robust fully-digital drive for linear permanent magnet synchronous motor
Authors: Tam, MSW
Cheung, CN 
Issue Date: 2004
Source: 2004 1st International Conference on Power Electronics Systems and Applications proceedings : 9 to 11 November 2004, Hong Kong, p. 188-193
Abstract: High-speed and high-precision linear motions are found in many industrial applications, such as the wire-bonding and die-bonding of microelectronic components [1]. In order to achieve the strict requirements of next-generation semiconductor packaging machines, a high-performance linear drive system is developed. The linear drive system consists of a Linear Permanent Magnet Synchronous Motor (LPMSM), and a DSP-based fully digital PWM drive. To increase the current dynamics, overrated momentary high-voltage and high-current are injected to the actuator's coils, through the PWM drive. Finally, to improve the system robustness, a force compensation loop is derived to attain the system dynamic response when load variation is present. This paper describes the development of such a robust linear drive system. The paper includes (i) the construction and modelling of the Permanent Magnet Synchronous Linear Drive (PMSM); (ii) the design of the robust linear drive and the control system; (iii) the hardware implementation of the linear drive system; and (iv) the implementation results. The final results show that the system is capable of maintaining the same motion dynamic with load variation from 1kg to 2kg.
Keywords: Digital signal processing chips
Dynamic response
Linear synchronous motors
Permanent magnet motors
Robust control
Synchronous motor drives
Publisher: Power Electronics Research Centre, The Hong Kong Polytechnic University
ISBN: 9623674341
Rights: Copyright © The Hong Kong Polytechnic University 2004.
Appears in Collections:Conference Paper

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