The Design Of PMSM Servo System Based On FPGA

The Permanent Magnet Synchronous Motor servo system combines the motor manufacturing technology, modern power electronics technology, automatic control technology and sensor technology, which is being widely applied in the field of NC. This subject makes an in-depth research of hardware implementation for servo system controller, developing a large number of high-performance servo controllers and the corresponding IP cores. They include multiplier, divider, CORDIC co-processor, SPWM controller PI regulator, Digital filters and other basic components. Research results of the subject will be significant for developing high-performance servo system chip.First, on the basis of relevant literature, introduction part describes origin of the subject, research purpose and significance, reviews development history of the servo system and prospects. It emphasizes on the status quo of the motor control technology and research focus.Second, the subject derives mathematical model of the motor and compares several motor control strategies based on understanding permanent magnet synchronous motor internal structure and working principle. Combining relatively mature harmonic pulse width modulation (SPWM ) technology in the area of motor control, it realizes control of permanent magnet synchronous motor by selecting the voltage vector control and using sinusoidal pulse width modulation.In addition, there is also study on the servo system control algorithm, their implementation steps and the corresponding simulation results. Meanwhile, it includes a brief introduction for the hardware design of servo system.Finally, the performance of the servo system is tested and analyzed, which further verifies the subject research results. Conclusion part summarizes the subject research work and follow-up prospects.