The proportional-integral-derivative (PID) is still the most common controller and stabilizer used in industry due to its simplicity\nand ease of implementation. In most of the real applications, the controlled system has parameters which slowly vary or are\nuncertain.Thus, PID gains must be adapted to cope with such changes. In this paper, adaptive PID (APID) controller is proposed\nusing the recursive least square (RLS) algorithm. RLS algorithm is used to update the PID gains in real time (as system operates) to\nforce the actual system to behave like a desired reference model. Computer simulations are given to demonstrate the effectiveness of\nthe proposed APID controller on SISO stable and unstable systems considering the presence of changes in the systems parameters.
Loading....