Electricity consumption contribution to power system inertia: Case electric vehicles and thermostatically controlled loads in Finland

Antti Alahäivälä, Matti Lehtonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Generation of inverter-connected solar and wind power displaces kinetic energy in power systems, decreasing frequency quality and threatening the system security. As a solution, this paper investigates the potential of electricity consumption to increase the inertial response of the system so that the frequency quality is maintained. The study focuses on three types of consumption: Electric vehicle (EV) charging, direct electric space heating (DESH), and the consumption of refrigerators, which all have different characteristics in terms of their response to the power system frequency. We aim to assess their potential inertia contribution in a Finnish case study. Therefore, the study firstly introduces the consumption models with required load control strategies, after which the performance of the loads as a part of the Nordic power system frequency dynamics is simulated. The results indicate that the loads are able to contribute to the system inertia but their consumption may not coincide with the moments of low system kinetic energy.
    Original languageEnglish
    Title of host publicationInnovative Smart Grid Technologies Conference Europe (ISGT-Europe)
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Pages1-6
    Number of pages6
    ISBN (Electronic)978-1-5386-1953-7 , 978-1-5386-1952-0
    ISBN (Print)978-1-5386-1954-4
    DOIs
    Publication statusPublished - 16 Jan 2018
    MoE publication typeA4 Article in a conference publication
    EventIEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe - Torino, Italy
    Duration: 26 Sep 201729 Sep 2017

    Conference

    ConferenceIEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe
    Abbreviated titleISGT-Europe
    CountryItaly
    CityTorino
    Period26/09/1729/09/17

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    Keywords

    • load modeling
    • kinetic energy
    • power system dynamics
    • refrigerators
    • power system stability
    • space heating
    • electric heating
    • demand response
    • electric vehicle
    • inertia

    Cite this

    Alahäivälä, A., & Lehtonen, M. (2018). Electricity consumption contribution to power system inertia: Case electric vehicles and thermostatically controlled loads in Finland. In Innovative Smart Grid Technologies Conference Europe (ISGT-Europe) (pp. 1-6). IEEE Institute of Electrical and Electronic Engineers . https://doi.org/10.1109/ISGTEurope.2017.8260097