Robust Multiloop PID Controller Design: A Successive Semidefinite Programming Approach
نویسندگان
چکیده
The problem of robust multiloop proportional-integral-derivative (PID) controller tuning for multivariable processes is addressed in this paper. The problem is formulated in the H∞ control framework, and the controller parameters are determined based on both user-specified performance and robust stability. The PID settings are computed by solving a nonlinear optimization problem with matrix inequality constraints, using a successive semidefinite programming approach. The proposed method is illustrated by a simple case study that investigates robust PID control of a distillation column.
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