FPGA-based stepper motor vector control system design

摘要

In this paper, we implement a stepper motor drive system on field programmable gate array (FPGA), and the design is mainly based on vector control strategy. First, the control system is built by MATLAB/Simulink and simulated on Modelsim platform. Next, the resulting software system is converted into Verilog HDL codes, and implemented on an Altera Cyclone III FPGA. The stator's currents of the developed hardware system are first shown by simulation and experiment to verify the validness and performances of the vector control structure. After that, the speed responses of motor rotor are shown to prove the performances of the outer loop control system and encoder counter circuit.