Unified Control of Voltage, Frequency and Angle in Electrical Power Systems: A Passivity and Negative-Imaginary based Approach
Abstract
This paper proposes a unified methodology for voltage regulation, frequency synchronization, and rotor angle control in power transmission systems considering a one-axis generator model with time-varying voltages. First, we formulate an output consensus problem with a passivity and negative-imaginary (NI) based control framework. We establish output consensus results for both networked passive systems and networked NI systems. Next, we apply the output consensus problem by controlling large-scale batteries co-located with synchronous generators -- using real-time voltage phasor measurements. By controlling the battery storage systems so as to dispatch real and reactive power, we enable simultaneous control of voltage, frequency, and power angle differences across a transmission network. Validation through numerical simulations on a four-area transmission network confirms the robustness of our unified control framework.
Keywords
Cite
@article{arxiv.2406.01643,
title = {Unified Control of Voltage, Frequency and Angle in Electrical Power Systems: A Passivity and Negative-Imaginary based Approach},
author = {Yijun Chen and Kanghong Shi and Ian R. Petersen and Elizabeth L. Ratnam},
journal= {arXiv preprint arXiv:2406.01643},
year = {2024}
}
Comments
8 pages, 7 figures, the 63rd IEEE Conference on Decision and Control. arXiv admin note: text overlap with arXiv:2406.01206