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Wide area controllers for excitation boosters for transient stability improvement

L. Díez Maroto, J. Renedo, L. Rouco, F. Fernández-Bernal

Excitation boosters (EBs) are one of the most cost-effective solutions to improve Fault Ride Through (FRT) capability of synchronous generators. However, they may lead to undesired behavior in multi-machine systems when governed by controllers that use local measurements. EB controllers based on a Wide Area Control System (WACS) have proved to be an effective solution to improve the overall transient stability of a multi-machine system. This paper compares two WACS-based EBs; one proposed in a previous work and a variant controller proposed here. In the comparison of WACS-based EBs, performance, design, implementation aspects and impact of communication latency are analyzed and discussed in detail.


Keywords: Excitation booster; Bus fed static excitation system; Fault ride through capability; Grid codesTransient stability; WAMS; WACS


Electric Power Systems Research. Volume: 189 Issue: 106622 Pages: 1-6

JCR Impact Factor and WoS quartile: 3.022 - Q2 (2018)

DOI reference: DOI icon 10.1016/j.epsr.2020.106622    

Published on paper: December 2020. Published on-line: August 2020.



Citation:
L. Díez Maroto, J. Renedo, L. Rouco, F. Fernández-Bernal. Wide area controllers for excitation boosters for transient stability improvement. Electric Power Systems Research. vol. 189, no. 106622, pp. 1-6, December 2020. [Online: August 2020]


    Topics research:
  • Stability: large disturbance stability, tuning of frequency loadshedding schemes, excitation control, small disturbance stability, tuning of power system stabilizers, identification of AVR and governor models