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Performance analysis of voltage profile improvement in AVR system using zebra optimization algorithms based on PID controller

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e-Prime - Advances in Electrical Engineering, Electronics and Energy 2023年 6卷

作者： Pazhanimuthu, C. Saravanan, G. Suresh, K.P. Kumar, R. Senthil Department of Electrical and Electronics Engineering KPR Institute of Engineering and Technology Tamilnadu Coimbatore 641407 India Department of EEE Sri Krishna College of Technology Tamilnadu Coimbatore 641042 India School of Electrical Engineering Vellore Institute of Technology Tamilnadu Chennai 600127 India

Many problems are associated with dynamic changes in the power system, mainly because the number of switching loads has increased. These loads induce ineffective system behaviour, reduce the system voltage profile, and lead to improper voltage regulation. The proposed Automatic Voltage Regulator (AVR) system is intended to eliminate the above problem and preserve the system voltage at the generator terminal within the allowable range. In this work, Proportional-Integral-Derivative (PID) controllers are applied to enhance the dynamic behaviour of the AVR system. The Zebra optimization algorithm (ZOA) and osprey optimization algorithm (OOA) algorithms are implemented to optimize the system's transient response by modifying the gain of PID controller parameters, which include proportional, integral, and derivative parameters, to preserve a stable voltage profile. To achieve an optimal solution, the mathematical model of the proposed system is realized in the Internet of Things (IoT). The connected loads in the system can operate at the nominal voltage level through PID controller tuning using ZOA and OOA. The proposed system's performance is evaluated and verified with MATLAB R2023a. ZOA showed an improvement of 18.5 % with a peak overshoot of 0.01 % during the system-transient condition. Compared to conventional optimization algorithms implemented in AVR systems, ZOA provides faster responsiveness and enhanced system stability. © 2023 The Author(s)

关键词： AVR system osprey optimization algorithm PID controller Power system optimization Zebra optimization algorithm

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