ZHCSOS0C august 2021 – june 2023 MCF8316A
PRODUCTION DATA
The integrated speed control loop helps maintain a constant speed over varying operating conditions. The Kp and Ki coefficients are configured through SPD_LOOP_KP and SPD_LOOP_KI. The output of the speed loop is used to generate the current reference for torque control (Iq_ref). The output of the speed loop is limited to implement a current limit. The current limit is set by configuring ILIMIT. When output of the speed loop saturates, the integrator is disabled to prevent integral wind-up.
SPEED_REF is derived from the duty command input and speed profiles configured by the user and SPEED_MEAS is the estimated speed from the back-EMF observer.