Tuning of PID Controller Coefficients for AVR Systems by SA Algorithm

  • Maryam Ehsani Department of Electrical Engineering, Arak University of Technology, Arak, Iran.
  • Morassae Shafiezad Department of Electrical Engineering, Arak University of Technology, Arak, Iran.
Keywords: AVR System, PID Controller, Population based and Single-solution based Metaheuristics Algorithms, Simulated Annealing Algorithm

Abstract

As a real time process, in tuning the coefficients of PID controllers in AVRs, accuracy vs. speed is an important issue. Considering complexity of the problem and real systems requirements, various methods, including exact methods and approximation algorithms, have been implemented for this purpose. Since the conventional methods based on meta-heuristic algorithms solving this problem, generally use population-based algorithms such as GA and PSO, this paper aims to investigate the efficiency and performance of single- solution based metaheuristics to solve this problem. So Simulated Annealing (SA) algorithm is proposed, and implemented for optimizing PID coefficients. In addition, an extension of SA is presented improving the search strategy based on neighborhood adjustment. The results indicate that the proposed algorithms as single based metaheuristics, have a good or even better performance vs. population based metaheuristics, in spite of simplicity in implementation and less computation requirements. This fact implies that the landscape complexity of these problems does not necessarily require population-based algorithms. The presented method is also applied to multiple objective functions regarding different time response criteria in output voltage and leads to better results in less time.

References

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Published
2021-03-01
How to Cite
Ehsani, M., & Shafiezad, M. (2021). Tuning of PID Controller Coefficients for AVR Systems by SA Algorithm. Majlesi Journal of Electrical Engineering, 15(1), 25-31. https://doi.org/https://doi.org/10.29252/mjee.15.1.25
Section
Articles