Research Of PMSM Vector Control System Based On TMS320F2812

The world is moving in the direction of the development figure, and the digital signal processor is the heart of the digital revolution. Since the 20th century the 60's, digital signal processors (Digital Signal Processing, DSP) is becoming a mature technology, and replace of the traditional analog signal processing system. in a number of applications. DSP technology initially limited to major data communications and voice processing, but with digital technology in the consumer electronics market forces to gradually expand to the DSP a new stage to show off their capabilities, and digital information to a firm core engine status Product. Because of advances of DSP in technology, new application products is bound to continue to emerge, and to infiltrate our lives in all corners, using DSP to implement digital treatment and control has become the trend of future development.Permanent Magnet Synchronous Motor is a new type of motor recently developed which has a lot of areas of science and technology combined with. It not only combines with high-speed, high efficiency, high dynamic response, heat capacity and high reliability, but also has low noise and long-life characteristics. Because Permanent Magnet Synchronous Motor vector control system can achieve high precision,high dynamic performance and a wide range of speed control or positioning control, the system has aroused wide attention from scholars at home and abroad. In recent years, people have more and more interested in the research, they have access to apply in medical equipment, chemical, textile, CNC machine tools, industrial robots, computer peripherals, instrumentation, micro-car and electric bicycle and so on.The main contents of this article is the research of PMSM vector control system based on the TMS320F2812. Give the overall system design program, design a hardware circuit, the completion of the software part. Summarized as follows:Chapter I: Introduce the VVVF technology, outlines the PWM technology, focuses on the space vector PWM technology and its applications. Explained the course of development of DSP technology and its development prospects. Discusses the main content of the research.Chapter II: Introduce the principle and classification of Permanent Magnet Synchronous Motor. The introduction of two important coordinate transformation formula: Clarke and Park transformation formula, which is derived out the mathematical model in the d, q-axis of Permanent Magnet Synchronous Motor. Then introduce a Permanent Magnet Synchronous Motor vector control principle, focused on the emergence of the SVPWM principle, introduce the synthesis methods of SVPWM vectors,sector calculation method and the formula for calculating switching vector point.Chapter III: On Permanent Magnet Synchronous Motor control system design and hardware circuit design. First of all, make the overall design of the hardware system in discussed, and then introduce the smallest motor control system which based on TMS320F2812 chip , focuses on the master chip TMS320F2812. Introduce the DR15A drives which used to finish driving,insulation,over-current and over-voltage protection, introduce IPM module. Also introduced the principle of optical encoder, as well as the keyboard and display circuit.Chapter IV: Main Introduction of the software constitute of Permanent Magnet Synchronous Motor vector control system Introduce the development platform CCS, after the first general introduction of the entire framework, then described how to generate SVPWM wave in detail, location judgments, current collection, coordinate transformation, PI-conditioning and a keyboard display part at CCS environment and TMS320F2812 devices on the implementation process and the significance of dead zone and the its setting up.Chapter V: Mainly give the test results, including SVPWM waveform in six sectors, no-load phase current and phase voltage waveforms and speed curve in different time intervals (no-load), and give the corresponding theoretical analysis to test results. These test results prove the feasibility of vector control.Chapter VI: Summarizes the main experimental results of the research as well as on the future proposals on how to improve, allowing the system to more of the feasibility and excellent.