Modified Cascaded Controller Design Constructed on Fractional Operator ‘β’ to Mitigate Frequency Fluctuations for Sustainable Operation of Power Systems

Muhammad Majid Gulzar, Sadia Murawwat, Daud Sibtain, Kamal Shahid, Imran Javed and Yonghao Gui ()
Additional contact information
Muhammad Majid Gulzar: Control & Instrumentation Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
Sadia Murawwat: Department of Electrical Engineering, Lahore College for Women University, Lahore 54000, Pakistan
Daud Sibtain: Department of Electrical Engineering, University of Central Punjab, Lahore 54000, Pakistan
Kamal Shahid: Institute of Electrical, Electronics and Computer Engineering, University of the Punjab, Lahore 54590, Pakistan
Imran Javed: Department of Electrical Engineering, Narowal Campus, University of Engineering and Technology Lahore, Narowal 39161, Pakistan
Yonghao Gui: Department of Electronic Systems, Aalborg University, 9220 Aalborg, Denmark

Energies, 2022, vol. 15, issue 20, 1-17

Abstract: The demand for energy is increasing at an abrupt pace, which has highly strained the power system, especially with high share of power generation from renewable energy sources (RES). This increasing strain needs to be effectively managed for a continuous and smooth operation of the power system network. Generation and demand exhibit a strong correlation that directly creates an impact on the power system frequency. Fluctuations and disruptions in load frequency can manifest themselves as over-voltages and physical damages in the power grid and, in the worst case, can lead to blackouts. Thus, this paper proposed an effective solution to mitigate the load frequency problem(s), which is initiated by the changing load demand under high penetration of RES. This paper presented an improved cascaded structure, the proportional integral with a fractional operator coupled with proportional derivative PI − FO P + PD . The proposed FO P + PD modifies the (1+PD) controller by introducing fractional properties that improve its tracking efficiency and mitigate frequency fluctuations taking minimal time. The introduction of FO P β diversifies its tracking and overall controlling ability, which translates it as a significant controller. The controller optimal parameters are extracted by deploying a dragonfly search algorithm (DSA). The study of the results illustrates that the proposed design displays efficient performance under any disturbance or uncertainty in the power system.

Keywords: load frequency control; modified cascade controller; dragonfly search algorithm; fractional operator; renewable energy resources (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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