Measurement-driven load change compensation for robust secondary voltage regulation

Authors

  • Francesco Bonavolontà University of Naples Federico II
  • Pasquale Di Palma University of Naples Federico II
  • Annalisa Liccardo Università di Napoli Federico II
  • Fabio Mottola University of Naples Federico II
  • Domenico Villacci University of Naples Federico II

DOI:

https://doi.org/10.21014/actaimeko.v13i4.1923

Keywords:

Secondary voltage regulation, FACTS devices, PMU report rate, PMU uncertainty

Abstract

Voltage regulation ensures the reliable and efficient operation of power systems by maintaining voltage levels within specified limits despite changing load conditions. Modern grids integrating renewable energy sources face new challenges. These sources, such as wind and solar power, cause rapid power fluctuations. Furthermore, high-demand loads like electric vehicles could also result in very fast power variations. This paper explores an advanced control strategy related to the integration of Flexible AC Transmission Systems (FACTS) devices within an improved Secondary Voltage Regulation (SVR) based on an optimal linear quadratic control. The control strategy can compensate the effects of fast load variations, by exploiting the information provided by the Phasor Measurement Units (PMUs). The PMUs are, however, affected by non-idealities, which can reduce the compensation's efficiency. In the paper, the performance of the regulation strategy is assessed according to the two main PMU's characteristics: the report rate and the accuracy associated with the measurement results. The paper thus provides a walkthrough to properly select the characteristics and, thus, the cost of the PMU, according to the desired voltage regulation's performance.

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Published

2024-12-17

Issue

Vol. 13 No. 4 (2024)

Section

Research Papers

License

Copyright (c) 2024 Francesco Bonavolontà, Pasquale Di Palma, Annalisa Liccardo, Fabio Mottola, Domenico Villacci

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