Determination of Power System Response during Small Load Fluctuations

W. Liang, Timothy Littler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


This paper proposes a calculation method to determine power system response during small load perturbations or minor disturbances. The method establishes the initial value of active power transient using traditional reduction technique on admittance matrix, which incorporates voltage variations in the determination. The method examines active power distribution among generators when several loads simultaneously change, and verifies that the superposition principle is applicable for this scenario. The theoretical derivation provided in the paper is validated by numerical simulations using a 3-generator 9-bus benchmark model. The results indicate that the inclusion of voltage variation renders an independent and precise measure of active power response during transient conditions.
Original languageEnglish
Title of host publicationProceedings of the IEEE Power & Energy Society General Meeting (PES '09)
Number of pages8
Publication statusPublished - Jul 2009
EventIEEE Power Engineering Society General Meeting (PES '09) - Calgary, AB, Canada
Duration: 01 Jul 200901 Jul 2009


ConferenceIEEE Power Engineering Society General Meeting (PES '09)
CityCalgary, AB

Bibliographical note

ISSN: 1944-9925


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