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A WACS exploiting generator Excitation Boosters for power system transient stability enhancement

L. Díez Maroto, L. Vanfretti, M.S. Almas, G.M. Jónsdóttir, L. Rouco

Excitation Boosters (EB) are designed to improve transient stability of synchronous generators equipped with bus fed static excitation systems. They can be controlled using either local or remote signals following a disturbance. This paper explores how critical clearing times (CCT) can be improved by EBs controlled using remote signals. Particularly, Pseudo Center of Inertia (PCOI) and Dominant Interarea Path (DIP) signals derived from Phasor Measurement Units (PMU) within a Wide Area Control System (WACS) are used. Prototype controllers are tested by means of a Real Time (RT) Hardware-in-the-Loop (HIL) experimental setup.

Keywords: Excitation Booster; Synchronous generator transient stability; WACS; PMUs; Real Time systems; HIL

Electric Power Systems Research. Volume: 148 Pages: 245-253

Journal Impact Factor: JCR impact factor 2.856 (2017)

DOI reference: DOI icon 10.1016/j.epsr.2017.03.019    

Published on paper: July 2017. Published on-line: April 2017.

    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

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