Induction Motor Vector Control Simulation Program with Current Loop and Speed Loop

Induction motor vector control represents an advanced control strategy whose core principle lies in achieving high-performance motor control through precise regulation of current and speed loops. The current loop primarily handles decoupling control of motor torque and flux linkage, while the speed loop regulates motor rotation speed to ensure excellent dynamic response and steady-state performance.

In the simulation program, the current loop typically implements PI controllers to track given current references, achieving fast and accurate current regulation. The implementation typically involves Clarke/Park transformations for coordinate system conversion and inverse transformations for control signal generation. Similarly, the speed loop employs PI control to adjust the current loop's reference input, maintaining stable motor speed at target values. This dual-loop structure enables stable system operation under varying loads and speeds.

This simulation program serves to validate vector control algorithm effectiveness, optimize control parameters, and analyze system dynamic characteristics under different operating conditions. Through simulation, potential issues can be identified early, enhancing the reliability of practical control systems. Common implementations include discrete-time controller design with sampling rate considerations, anti-windup mechanisms for integrator saturation, and field-oriented control coordinate transformations.