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Research on the Performance of AC PMSM Servo Controller System

Author: ChenYanFeng
Tutor: WangHuiZhen
School: Nanjing University of Aeronautics and Astronautics
Course: Motor and electrical
Keywords: PMSM AC Servo System Vector control Improved PID control Moment of inertia identification Load Observer MCU DSP
CLC: TM921.541
Type: Master's thesis
Year: 2009
Downloads: 168
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With the modern industrial production is increasingly automated development needs , as an important part of modern electric servo system raised higher and higher performance and technical requirements , and the sine wave permanent magnet synchronous motor ( PMSM ) , because of its superior performance has increasingly become the the servo system perform motor mainstream . Research and development of high-performance permanent magnet synchronous motor servo system has a very important practical significance . Firstly, given the mathematical model of permanent magnet synchronous motor , established on the basis of analysis of permanent magnet synchronous motor vector control theory based embodiment of rotor field oriented vector control . Then create a simulation model based on MATLAB / Simulink permanent magnet AC servo system , several improved PID control speed regulator and position regulator . Simulation and experimental results show that the improved PID control is effective in improving the performance of the dynamic response of the speed loop and position loop . In order to improve the robustness of the servo system , this paper studied the application of a model-based reference parameter identification method in the identification of motor moment of inertia , and to identify the moment of inertia of the speed controller coefficients line adjustment . To improve the ability of anti- load disturbance , the paper constructs a load torque recognition observer to compensate for the load disturbance of the system . Simulation results show that the introduction of the moment of inertia to identify and load observer can enhance the performance of the speed loop servo system robustness and anti - load disturbance . On the basis of the theory and simulation analysis , based on MSP430F149 MCU design and the TMS320LF2407 DSP permanent magnet AC servo system experiment platform , a complete set of human-machine interface , which contains the system on-line control , status monitoring, command and run coefficient backup ; gives a detailed permanent magnet AC servo system current loop, velocity loop and position loop experimental waveforms . The experimental results can be seen, this digital-to-analog combination of permanent magnet AC servo system will not only have a good man-machine interface , but also has good dynamic and static performance , a wide speed range and strong load capacity . The experimental results demonstrate the previous theoretical and simulation analysis .

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric drive ( electric drive ) > Control system > Synchronous rotation and servo system > Servo system
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