Improvement of PID parameters for Ćuk converter using fuzzy logic in PV system

Author(s): Lunde Ardhentaa, Taufik Taufikb, Ramadhani Kurniawan Subrotoc, Rini Nur Hasanah a
a Department of Electrical Engineering, Brawijaya University, Malang 65145, Indonesia
b Electrical Engineering Department, Cal Poly State University, San Luis Obispo CA 93407, USA
c Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei City, Taiwan
International Journal of Smart Grid and Clean Energy, vol. 10, no. 1, January 2021: pp.33-43
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.10.1.33-43

Abstract: Worldwide use of DC electrical system is continuously growing, increasing the need for converting DC voltage from one level to another following the requirements. One such DC-DC converter is the Ćuk converter. In its practical operation, the Ćuk converter frequently encounters deviations from its nominal operating conditions. This would consequently result in temporary or permanent change in output voltage from the desired value. To achieve fast transient response or prevent instability upon external disturbances, a good controller will be needed. This paper examines performance comparison between PID and fuzzy-PID methods in controlling the output of a Ćuk converter. The study was conducted through simulation by applying the disturbance in the form of changes in reference voltage, input voltage, and load. Results show that the deviation from the desired output voltage using the fuzzy-PID control is smaller than that of the PID. Results further demonstrate that the fuzzy-PID method offers a faster recovery time than the PID method does. It can be concluded that Ćuk converter with the fuzzy-PID controller performs better than one utilizing the PID controller.

Keywords: PID control, Ćuk converter, fuzzy logic, nonlinear system
Full Paper.pdf

 
Copyright © 2021 International Journal of Smart Grid and Clean Energy, All Rights Reserved