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

Antti Alahäivälä; Matti Lehtonen

doi:10.1109/ISGTEurope.2017.8260097

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

Antti Alahäivälä, Matti Lehtonen

Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

3 Citations (Scopus)

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 language	English
Title of host publication	Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	1-6
Number of pages	6
ISBN (Electronic)	978-1-5386-1953-7 , 978-1-5386-1952-0
ISBN (Print)	978-1-5386-1954-4
DOIs	https://doi.org/10.1109/ISGTEurope.2017.8260097
Publication status	Published - 16 Jan 2018
MoE publication type	A4 Article in a conference publication
Event	IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe - Torino, Italy Duration: 26 Sept 2017 → 29 Sept 2017

Conference

Conference	IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe
Abbreviated title	ISGT-Europe
Country/Territory	Italy
City	Torino
Period	26/09/17 → 29/09/17

Keywords

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/ISGTEurope.2017.8260097

Cite this

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

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.",

keywords = "load modeling, kinetic energy, power system dynamics, refrigerators, power system stability, space heating, electric heating, demand response, electric vehicle, inertia",

author = "Antti Alah{\"a}iv{\"a}l{\"a} and Matti Lehtonen",

note = "Funding Information: This work was supported by the Academy part of the project Flexible Customer. Publisher Copyright: {\textcopyright} 2017 IEEE. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.; IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe, ISGT-Europe ; Conference date: 26-09-2017 Through 29-09-2017",

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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). IEEE Institute of Electrical and Electronic Engineers, pp. 1-6, IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe, Torino, Italy, 26/09/17. https://doi.org/10.1109/ISGTEurope.2017.8260097

Electricity consumption contribution to power system inertia: Case electric vehicles and thermostatically controlled loads in Finland. / Alahäivälä, Antti; Lehtonen, Matti.
Innovative Smart Grid Technologies Conference Europe (ISGT-Europe). IEEE Institute of Electrical and Electronic Engineers, 2018. p. 1-6.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Lehtonen, Matti

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N2 - 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.

AB - 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.

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KW - kinetic energy

KW - power system dynamics

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KW - power system stability

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KW - electric heating

KW - demand response

KW - electric vehicle

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

Abstract

Conference

Keywords

UN SDGs

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