Stability and Optimisation

System

The experiments are set up with experimental panels in the profile frame. The Profi-CASSY is used to control this technical controlled system and to record and analyse the measured values.

Learning objectives

• Assessment of various stability criteria
• Optimisation with PC support
• Quality criteria and control surface
• Integral criteria: IAE, ISE, ITAE, ITSE

Function

One of the most important tasks of control engineering is the stability analysis and optimisation of control loops. The result determines the suitability of the control system for the intended application.

Method

The equipment includes student experiments in the laboratory with non-hazardous low voltage. Experimental procedures are carried out using a manual in printed or electronic form.

Target group

An internship aimed at further education programmes at technical colleges and technical universities.

Previous knowledge

• Knowledge of classical control engineering.

Additions

The following equipment is recommended for in-depth study:

• E6.3.4.2 Digital control
• E6.3.4.3 Fuzzy control

Topics

• Controllability of controlled systems
• Controller design according to Ziegler / Nichols
• Controller design according to Chien / Hrones / Reswick
• Controller design according to the optimum amount
• Optimisation with the use of evolution strategies
• Numerical optimisation of controllers
• Optimisation based on ruled surfaces
• Optimisation to limit the overshoot
• Optimisation for speed and low overshoot