# 529-0031-00L Chemical Process Control

Semester | Spring Semester 2020 |

Lecturers | R. Grass |

Periodicity | yearly recurring course |

Language of instruction | German |

Abstract | Concept of control. Modelling of dynamic systems. State space description, linearisation. Laplace transform, system response. Closed loop control - idea of feedback. PID control. Stability, Routh-Hurwitz criterion, frequency response, Bode diagram. Feedforward compensation, cascade control. Multivariable systems. Application to reactor control. |

Objective | Chemical Process Control. Process automation, concept of control. Modelling of dynamical systems - examples. State space description, linearisation, analytical/numerical solution. Laplace transform, system response for first and second order systems. Closed loop control - idea of feedback. PID control, Ziegler - Nichols tuning. Stability, Routh-Hurwitz criteria, root locus, frequency response, Bode diagram, Nyquist criterion. Feedforward compensation, cascade control. Multivariable systems (transfer matrix, state space representation), multi-loop control, problem of coupling, Relative Gain Array, decoupling, sensitivity to model uncertainty. Applications to distillation and reactor control. |

Content | Process automation, concept of control. Modelling of dynamical systems with examples. State space description, linearisation, analytical/numerical solution. Laplace transform, system response for first and second order systems. Closed loop control - idea of feedback. PID control, Ziegler - Nichols tuning. Stability, Routh-Hurwitz criterion, frequency response, Bode diagram. Feedforward compensation, cascade control. Multivariable systems (transfer matrix, state space representation), multi-loop control, problem of coupling, Relative Gain Array, decoupling, sensitivity to model uncertainty. Applications to distillation and reactor control. |

Lecture notes | Link |

Literature | - "Feedback Control of Dynamical Systems", 4th Edition, by G.F. Franklin, J.D. Powell and A. Emami-Naeini; Prentice Hall, 2002. - "Process Dynamics & Control", by D.E. Seborg, T.F. Edgar and D.A. Mellichamp; Wiley 1989. - "Process Dynamics, Modelling & Control", by B.A. Ogunnaike and W.H. Ray; Oxford University Press 1994. |

Prerequisites / Notice | Analysis II , linear algebra. MATLAB is used extensively for system analysis and simulation. |