Ren Hao, Mok and Ahmad, Mohd Ashraf (2022) Fast and optimal tuning of fractional order PID controller for AVR system based on memorizable-smoothed functional algorithm. International Journal of Engineering Science and Technology, 35 (101264). pp. 1-15. ISSN 2215-0986. (Published)
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Fast and optimal tuning of fractional order PID controller for AVR system based on memorizable-smoothed functional algorithm.pdf Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (1MB) | Preview |
Abstract
Voltage regulation in automatic voltage regulator (AVR) system has been one of the most challenging engineering problem due to the uncertain load condition. Therefore, the control of AVR system by using PID based controller is one of the essential approach to maintain the performance of the AVR system. Subsequently, the application of FOPID controller in AVR system is gaining more attention recently. This is because the FOPID has additional control parameters at the derivative and integral parts than the PID controller, which has the advantage to improve the output response of AVR system while retaining the robustness and simple construction as the PID controller. Nevertheless, many existing optimization tools for tuning the FOPID controller, which are based on multi-agent based optimization, require large number of function evaluation in their algorithm that could lead to high computational burden. Therefore, this study proposes a modified smoothed function algorithm (MSFA) based method to tune the FOPID controller of AVR system since it requires fewer number of function evaluation per iteration. Moreover, the proposed MSFA based method also can solve the unstable convergence issue in the original smoothed function algorithm (SFA), thus able to provide better convergence accuracy. The simulations of step response analysis, Bode plot analysis, trajectory tracking analysis, disturbance rejection analysis, and parameter variation analysis are conducted to evaluate the effectiveness of the proposed MSFA-FOPID controller of AVR system. Consequently, the results obtained from the simulations revealed that the proposed method is highly effective and significantly improved as compared to the other existing FOPID controllers.
| Item Type: | Article |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Automatic voltage regulator; Fractional PID controller; Gradient based; Optimization; Smoothed Functional Algorithm |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Faculty/Division: | Faculty of Electrical & Electronic Engineering Institute of Postgraduate Studies |
| Depositing User: | Dr Mohd Ashraf Ahmad |
| Date Deposited: | 21 Feb 2023 06:11 |
| Last Modified: | 21 Feb 2023 06:11 |
| URI: | http://umpir.ump.edu.my/id/eprint/36155 |
| Download Statistic: | View Download Statistics |
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