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Reasearch on the PMSM Speed Control System Based ADI Blackfin 548

Author: HongXiaoZuo
Tutor: ZhaoJiMin
School: Shanghai Jiaotong University
Course: Motor and electrical
Keywords: Permanent magnet synchronous motors SVPWM BF548
CLC: TM341
Type: Master's thesis
Year: 2010
Downloads: 89
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Abstract


With the permanent magnet synchronous motor (PMSM) is widely used in more and more areas, become the inevitable trend of development of permanent magnet synchronous motor speed control system, and has great practical significance and value. Motor drives, sensors and control technology and other related technologies are constantly changing, making it possible to the hardware configuration and software control algorithm to achieve higher performance speed control system. Hardware, FPGA and DSP can jointly achieve the system logic multiplexing and Mergers, accelerate the performance of new peripheral or bus interfaces, as well as the signal processing chain. The digital signal processor (DSP) as the main processing unit and control the FPGA. FPGA is used as a coprocessor, the incoming data from the DSP processor synchronization, and then came out. DSP and FPGA hardware together constitute the realization of the speed control system is an optional program. On the control algorithm, the current practical problems to be solved including the magnetic pole position detection, the low-speed operation of the motor or a stepping operation, the system of rapid response. The speed control system to achieve field-oriented control algorithm, and the need for a large number of real-time computing. The main task of this study is to build a control based on ADI's Blackfin 548 DSP and Xilinx's Spartan3 FPGA platform with the peripheral power driver circuit. Field-oriented control of permanent magnet synchronous motor speed control system. First, this paper studies the theory of the permanent magnet synchronous motor vector control, and analysis of the structural characteristics of the permanent magnet synchronous motor, the establishment of a mathematical model of the permanent magnet synchronous motor, and discussed on the basis of a permanent magnet synchronous motor vector control governor program, space vector pulse width modulation principle and algorithm analysis. The clear of SVPWM physical concepts, algorithms, high utilization of DC voltage, easy to implement digitization, is now one of the hot. Second, the article describes the core control platform based on ADI's Blackfin 548 DSP and Xilinx's Spartan3 FPGA. Control of the various functional modules in the platform and the structure, with the peripheral drive circuit. Again, on the basis of the hardware, the software is modular programming, speed and current double closed-loop field-oriented control. Then, using the Matlab Simulink components SVPWM algorithm simulation. Simulation results show the feasibility and correctness of the algorithm, provides a basis for further in-kind experiment. Finally, the actual platform based on ADI's DSP BF548 actual experiment of permanent magnet synchronous motor. Actual motor experiment proved well able to apply SVPWM algorithm to control PMSM, reached the expected effect of the simulation.

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