Control Methods
Controller families from PID and digital control to MIMO, MPC, adaptive, and robust synthesis.
Linear
PID control
Combines proportional, integral, and derivative action for simple, effective feedback.
Integral action & anti-windup
Improves steady-state tracking while limiting integrator problems when actuators saturate.
Lead-lag compensation
Shapes transient response and steady-state accuracy with phase-lead and phase-lag networks.
Full-state feedback
Places closed-loop poles through a gain matrix K.
Pole placement
Assigns closed-loop eigenvalues directly when the model is controllable.
LQR
Linear Quadratic Regulator minimizes a quadratic state and input cost for optimal state feedback.
LQG
Linear Quadratic Gaussian control combines LQR with Kalman filtering for noisy output feedback.
H-infinity control
Targets worst-case disturbance attenuation and robustness for linear plants.
Loop shaping
Designs open-loop gain and phase to meet bandwidth, tracking, noise, and robustness targets.