Industrial adaptive controllers based on frequency response techniques

  title={Industrial adaptive controllers based on frequency response techniques},
  author={Tore H{\"a}gglund and Karl Johan {\AA}str{\"o}m},
-This paper describes several adaptive techniques based on frequency response analysis, which are used in industrial controllers. Automatic tuning is used to obtain PID controller parameters, to build up gain schedules, and to initialize adaptive algorithms. A simple adaptive feedback algorithm which is based on the idea of tracking a point on the Nyquist curve is presented as well as an adaptive feedforward procedure. The adaptive techniques have been implemented in various industrial products… CONTINUE READING
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