Optimal Control of AVR System With Tree Seed Algorithm-Based PID Controller

Ercan Kose

doi:10.1109/access.2020.2993628

Abstract

In this study, an optimal Tree-Seed Algorithm (TSA) algorithm-based Proportional-Integral-Derivative (PID) controller is proposed for automatic voltage regulator (AVR) system terminal tracking problem. PID controller gains Kp, Ki, and Kd are optimized with the proposed TSA algorithm based on different objective functions. The TSA-based optimal PID controller's performance is compared with numerous PID controllers, which were developed using different meta-hermetic optimization algorithms in the literature. Several analysis methods including root locus, bode analysis, robustness, and disturbance rejection are studied and compared with reported works in the literature. It is shown that there is still a research gap to improve the tracking performance of the AVR system due to its importance in electrical systems. According to the obtained comparison results, it has been revealed that the proposed TSA-based PID controller improves tracking properties under load change thus it can be effectively used for synchronous generator automatic voltage regulator terminal voltage stability.

Highlights

The electrical loads change the behavior of the generators and the output load supply voltages
SIMULATION RESULTS IKA, local unimodal sampling (LUS), ABC, PSO, DEA, pattern search algorithm (PSA), and biogeography based optimization (BBO) optimization algorithms are widely used in the literature and we analyse the performance of the proposed Tree-Seed Algorithm (TSA) algorithm by comparing to them
The achieved results illustrate that the proposed automatic voltage regulator (AVR) system with TSA optimized PID controller exhibits better performance in terms of transient and steady state responses of its voltage tracking performance as compared with the existing algorithms reported for the AVR in the literature

Summary

Introduction

The electrical loads change the behavior of the generators and the output load supply voltages. We use a tree-seed algorithm (TSA)-based PID controller for the AVR system.

Results

Conclusion