ROBUST ANALYSIS AND PID TUNING OF CASCADE CONTROL SYSTEMS

2005 ◽  
Vol 192 (9) ◽  
pp. 1204-1220 ◽  
Author(s):  
Wen Tan ◽  
Jizhen Liu ◽  
Tongwen Chen ◽  
Horacio J. Marquez
Keyword(s):  
Control Systems ◽  
Cascade Control ◽  
Robust Analysis ◽  
Pid Tuning

scholarly journals Application of the genetic algorithm for cascade control of a HVAC system

2019 ◽  
Vol 292 ◽  
pp. 01064 ◽  
Author(s):  
Donka Ivanova ◽  
Nikolay Valov ◽  
Martin Deyanov
Keyword(s):  
Genetic Algorithm ◽  
Control Systems ◽  
Pid Controller ◽  
Classical Method ◽  
Pi Controller ◽  
Cascade Control ◽  
Hvac System ◽  
Cascade System ◽  
Outer Loop ◽  
Cascade Control System

In this article the application of genetic algorithm for tuning of HVAC cascade system is proposed. The tuning procedure for a cascade system is very time-consuming and practice shows that additional controller tuning is needed when classical method is used. The main problem in classical method is the interconnection between the parameters of the two controllers. The proposed optimal tuning procedure overcomes the disadvantages. It is based on the following criteria: minimum integral square error, minimum settling time and minimum overshoot. The best process quality is achieved with PI controller in the inner loop and a PID controller in the outer loop of the cascade HVAC system. The proposed method for simultaneous tuning of controller parameters in a cascade control system can be applied in different control systems.

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