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Research of Intelligent Control System for BLDCM Using DSP Technology

Author: FengZuoYing
Tutor: ZhengLianQing
School: Chongqing University
Course: Electrical Engineering
Keywords: Permanent magnet brushless DC motor DSP TMS320LF2407 Basic genetic algorithm Improved genetic algorithm MATLAB Simulation
CLC: TM351
Type: Master's thesis
Year: 2004
Downloads: 596
Quote: 8
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The technology is changing rapidly, with the advances in high-power switching devices, integrated circuits, and high-performance magnetic materials, the use of electronically commutated brushless DC motor to the principle of work has made considerable development. Brushless DC motor either a DC motor structure is simple, reliable operation, easy maintenance and so a series of advantages, it also has many advantages of high efficiency AC motor running, excitation loss and speed performance, is now in the industrial control various fields becomes pervasive. Meanwhile, with the rapid development of digital signal processing technology and its hardware chip microprocessor technology, and more and more used in motor vehicles and industrial control systems. Many complex and effective control strategies and algorithms in a variety of motor control has been achieved. This article includes detailed descriptions of the aspects of the basic components of the brushless DC motor, the basic working principle and the mathematical model, designed a set of all-digital dual-loop speed control system, on the basis of the analysis of the summary of the basic genetic algorithm, genetic algorithm optimized research. Conventional proportional integral control current loop, speed loop in the basic genetic algorithm on the basis of, for its precocity, post search retardation important parameter selection difficult, crossover and mutation operator coordination difficulties, the local search capability is weak, slow convergence, not even convergence and other issues to make improvements, and proposes a new improved algorithm to optimize the design of the speed controller proportional integral parameters, simulation and by writing MATLAB program, by contrast follow and immunity, thus validating the improved algorithm effectiveness. In this paper, the United States TI's digitized specifically for motor control design of 16-bit fixed-point DSP controller TMS320LF2407A as microcontrollers. It combines the high-speed signal processing capabilities of the DSP and optimized peripheral circuits suitable for motor control, can provide a reliable and efficient signal processing and hardware control for high-performance drive control in one. Brushless motor control system proposed in this paper, can get good speed control performance, DSP technology, not only makes the system to obtain a high-precision, high reliability, also simplified the structure of the system, increase the functionality of the system, with flexible control a high level of intelligence, the parameters change its characteristics.

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CLC: > Industrial Technology > Electrotechnical > Motor > A special motor > Permanent magnet motor
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