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The Study of Permanent Magnet Linear Synchronous Motor Servo Control System

Author: WuYiXiang
Tutor: ZengYueNan
School: Guangdong University of Technology
Course: Control Theory and Control Engineering
Keywords: PMLSM Vector control Linear servo DSP Identification of the quality of the mover
CLC: TM341
Type: Master's thesis
Year: 2011
Downloads: 98
Quote: 0
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Abstract


CNC machine tools are to the development of precision, high-speed, complex, intelligent and environmentally friendly direction on a variety of driving device performance increasing demands. The linear drive means is an important part of the machine tool, many of the linear drive device and system using a rotary motor through an intermediate conversion apparatus is converted to a linear motion. These intermediate conversion mechanism interested in the system performance to produce all sorts of adverse effects, which restricts the further improvement of system performance. With the motor and its drive to control the development of the technology, there has been \PMLSM control object, control methods and strategies of the servo control system hardware and software design by the research in-depth study of its operating principle. This paper analyzes the the PMLSM structure and its operating principle, the introduction of the theory of coordinate transformation and vector control theory and the mathematical model of the establishment of a permanent magnet linear synchronous motor synchronous rotating coordinate system, voltage space vector control technology and the principle of vector control system, and links. Commence from the inside to the outside to explore three constitute part of the control strategy of permanent magnet linear synchronous motor servo control system, the characteristics of the system in the current loop changes significantly mover quality identification compensation, by the conventional PI control in the speed loop from the optimization variable gain PI controller and position loop proportional plus feedforward control. Detail of a servo control system hardware and software design. Hardware design including TI's TMS320F2812 DSP as the core of the system control circuit, the core IPM IPM system power driver circuit and peripheral auxiliary circuit; software design-based program design, system software is divided in accordance with the modular program design thinking The interrupt vector control program two parts, the main program completed initialization and man-machine interface processing work interrupted modules achieve servo control algorithm. MATLAB / Simulink simulation environment to establish the the PMLSM servo control system simulation model, simulation experiments more comparable in the modeling process, close contact with the actual system hardware and software design systems model structures. System simulation results and the actual system and subsequent preliminary test results verify the correctness of the design, for further system optimization and improved control methods and strategies laid the foundation for subsequent research work.

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CLC: > Industrial Technology > Electrotechnical > Motor > AC motor > Synchronous motor
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