Design of a novel controller RIME-PID to improve the stability of a three-phase synchronous generator

Abdolhosseini, Morteza; Abdollahi, Rohollah; Eslami, Mohammad Hasan

doi:10.48301/jear.2025.496526.1058

Design of a novel controller RIME-PID to improve the stability of a three-phase synchronous generator

Document Type : Original Article

Authors

Morteza Abdolhosseini

Rohollah Abdollahi

Mohammad Hasan Eslami

Department of Electrical Engineering, Technical and Vocational University (TVU), Tehran, Iran.

10.48301/jear.2025.496526.1058

Abstract

This paper introduces a new three-phase synchronous generator rotor angle controller based on the RIME-PID algorithm to address rotor angle oscillations in transient and steady-state conditions, and to extend the stable operation range of the generator. The methods presented in the literature have a high computational load, which leads to an increase in response time and a decrease in tracking speed. In this paper, the proposed RIME-PID method, which is a physical method for adjusting PID controller parameters, while meeting the power system stability criteria, has a lower computational load and a higher convergence speed. Also, the RIME optimization algorithm searches the process of optimizing PID controller coefficients in a wide range of spaces with two approaches: settling time reduction and overshoot reduction. The linear state space equations of the steam power plant around the operating point are derived, followed by the presentation of a 6th-order model of the steam power plant based on Henkel's singular values, incorporating a PID controller for the rotor angle. The proposed controller's output power stability is evaluated using Bode and Nyquist stability criteria. Simulation results demonstrate that the RIME optimization algorithm outperforms the fuzzy controller, genetic algorithm, and Harris Hawks Optimization (HHO) algorithms in controlling the rotor angle of a three-phase synchronous generator. The proposed RIME-PID controller has a rise time of 0.681 sec, settling time of 8.8 sec, peak time of 2.25 sec, and overshoot of 28.9%, which is significantly reduced compared to other existing algorithms.

Keywords

Rotor angle

Three-phase synchronous generator

PID controller

RIME optimization algorithm

Subjects

Electrical Engineering

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