Disturbance Observer Based Frequency & Voltage Regulation for RES Integrated Uncertain Power Systems

TL;DR

This paper introduces a disturbance-observer-based control scheme to enhance frequency and voltage regulation in renewable energy integrated power systems, improving dynamic performance and robustness against uncertainties and noise.

Contribution

It presents a novel DOBC approach that acts as a feed-forward control, outperforming traditional PID controllers in uncertain and noisy environments.

Findings

Improved dynamic response in frequency and voltage regulation.

Enhanced robustness against uncertainties and noise.

Better performance compared to conventional control methods.

Abstract

This paper proposes a disturbance-observer-based control (DOBC) scheme for frequency and voltage regulation for a renewable energy sources (RES) integrated power systems. The proposed approach acts a feed-forward control which improves the dynamic performance of the conventional proportional-integral-derivative (PID) controller. Robustness of the proposed control scheme has been validated through simulations under worst-case and stochastic uncertainties to mitigate real-time variability in RES output and load. The performance of the proposed control technique is compared to well established technique in presence of communication delay and white noise.