Gain Calculation and Tuning

Motor Control Blockset helps you to select and adjusting the controller gains (PI gains) for the current, speed, and position loops. The gains are initially calculated from the motor’s electrical parameters (resistance, inductance, inertia) and the desired bandwidth or response time of each control loop. In FOC, the current loops (d‑ and q‑axis) are tuned first because they must be fast and well‑damped to ensure proper torque and flux control. The speed loop gains are then tuned to be slower than the current loops, ensuring stable cascaded control. Proper gain calculation and tuning are critical to avoid oscillations, excessive torque ripple, slow response, or even instability in the drive.