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ITAE-optimal PI controller based on Genetic Algorithm for low-order process with large time delays
- Source :
- ICAC
- Publication Year :
- 2014
- Publisher :
- IEEE, 2014.
-
Abstract
- For low order process with large time delay, a kind of optimal PI controller tuning method is proposed based on generalized Hermite-Biehler theorem and Genetic Algorithm. Firstly, the calculation method of parameter stable region of PI controller that can stabilize a low order process with time delay is proposed by using the generalized Hermite-Biehler theorem. Then the optimum PI controller parameters are obtained within this region based on ITAE criterion and genetic algorithm. A PI controller tuning formula is finally obtained by nonlinear fitting of optimization results, which has the capability to cover the low order process with normalized time delays up to 100. Monte-Carlo stochastic experiment on robust performance indicates that the proposed PI controller tuning method has good performance robustness when parameter uncertainty occurs compared with other four PI tuning methods.
Details
- Database :
- OpenAIRE
- Journal :
- 2014 20th International Conference on Automation and Computing
- Accession number :
- edsair.doi...........607c2c0cd7384200f0f52f751a17e8fe