1. K.J. Astrom and T. Hagglund, “PI controllers: theory, design, and tuning instrument,” Society of America
2. R.K. Ursem, P. Vadstrup, Parameter identification of induction motors using stochastic optimization algorithms. Appl. Soft Comput. 4(1), 49–64 (2004)
3. N. Rajasekar, K.M. Sundram, Feedback controller design for variable voltage variable speed induction motor drive via Ant Colony Optimization. Appl. Soft Comput. 12(8), 2132–2136 (2012)
4. M. Najeeb et al., An efficient control implementation for inverter based harmony search algorithm. Int. J. Power Electron. Drive Syst. 8(1), 279–289 (2017)
5. O. Roeva and T. Slavov, “Firefly algorithm tuning of PID controller for glucose concentration control during E. coli fed-batch cultivation process,” in Proceedings of the Federated Conference on Computer Science and Information Systems, pp. 455–462, 2012