Abstract
According to the vector control method, the paper established the mathematical model of the electrical control system of the CNC machine tool in the stator coordinate system of the asynchronous motor, and established the simulation model of the vector control system oriented by the rotor magnetic field using the MATLAB/Simulink model library. The control system is under load conditions the dynamic simulation is carried out. The simulation results show that the electrical control system of the CNC machine tool has good dynamic and static response characteristics. Under the interference of external loads, the system can quickly recover and stabilize. The simulation results conform to the actual operating characteristics of the electrical control system of the CNC machine tool, and provide a theoretical basis for the realization of the hardware and software of the frequency conversion speed regulation of the CNC machine tool spindle.
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