On the Methods of Resonance Identification in Power Systems

Amir Arasteh*, Omer Goksu, Jayachandra Naidu Sakamuri, Nicolaos Antonio Cutululis

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    There are several methods for resonance identification in power systems each of which has its own advantages and disadvantages. In this paper, three methods for resonance identification are discussed; namely: Impedance Scan (ImS), Harmonic Resonance Modal Analysis (HRMA), and the method based on Determinant of the Transfer Function (DTF). Going to the mathematical concept behind each method, and giving the physical meaning of these concepts in power systems, the applicability of using these methods in power systems is investigated. In this way, it is concluded that ImS is suitable for graphical representation of the resonances, HRMA is good if more insight about the resonances is needed, while DTF, which has the advantage of representing the behavior of the system with a single number, can have some limitations that need to be taken into account when used in resonance studies.
    Original languageEnglish
    Title of host publicationProceedings of the 2019 IEEE Milan PowerTech
    Number of pages6
    Publication date2019
    ISBN (Print)978-1-5386-4723-3
    ISBN (Electronic)978-1-5386-4722-6
    Publication statusPublished - 2019
    Event13th IEEE PowerTech Milano 2019: Leading innovation for energy transition - Bovisa Campus of Politecnico di Milano, Milano, Italy
    Duration: 23 Jun 201927 Jun 2019
    Conference number: 13


    Conference13th IEEE PowerTech Milano 2019
    LocationBovisa Campus of Politecnico di Milano
    OtherPowerTech is the anchor conference of the IEEE Power & Energy Society (PES) in Europe
    Internet address
    SeriesProceedings of the IEEE


    • Admittance Matrix
    • Eigenvalues
    • Electrical Resonances
    • Impedance Matrix
    • Resonance Identification


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