Unified Control of Voltage, Frequency and Angle in Electrical Power Systems: A Passivity and Negative-Imaginary based Approach
<|reference_start|>Unified Control of Voltage, Frequency and Angle in Electrical Power Systems: A Passivity and Negative-Imaginary based Approach: 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.<|reference_end|>
@article{chen2024unified,
    title={Unified Control of Voltage, Frequency and Angle in Electrical Power
  Systems: A Passivity and Negative-Imaginary based Approach},
    author={Yijun Chen, Kanghong Shi, Ian R. Petersen, Elizabeth L. Ratnam},
    journal={arXiv preprint arXiv:2406.01643},
    year={2024},
    archivePrefix={arXiv},
    eprint={2406.01643},
    primaryClass={eess.SY cs.SY}
}