Assessment of Under-Frequency Load Shedding in Mongolia Considering Inertia Scenarios

Choidorj Adiyabazar, Martha N. Acosta, Francisco Gonzalez-Longatt, J.L. Rueda, P. Palensky

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The Mongolian power system (MPS) has been changing in recent years mainly by the integration of wind power and solar photovoltaic sources which until 2019 has been reached a 20% of the total generation sources. The interconnection with the Russian power system is crucial from the frequency control and stability point of view, especially during the winter, since it provides the necessary power to cover the local energy lack. The importance of this interconnection was evident during the disconnection of the two transmission lines that connect MPS to RPS producing the major frequency event on 29 th June 2018, disconnecting 112 MW by the action of the under-frequency load shedding (UFLS) and making more than 1.5 million without electricity that day. The objective of this paper is assessing the existing UFLS schemes installed in the MPS by using numerical time-domain simulations. The disconnection from the RPS is used to evaluate the suitability of the UFLS considering two scenarios: winter high-demand, high-inertia and summer low-demand, low-inertia. Results of this research paper have demonstrated that the actual UFLS scheme is not enough to avoid frequency collapse in real-life conditions during the summer low-demand, low-inertia scenario.
Original languageEnglish
Title of host publicationProceedings of 2020 IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020
Subtitle of host publicationProceedings
PublisherIEEE
Pages1201-1205
Number of pages5
ISBN (Electronic)978-1-7281-7100-5
ISBN (Print)978-1-7281-7101-2
DOIs
Publication statusPublished - 2020
Event10th IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020 - Virtual/online event due to COVID-19, Delft, Netherlands
Duration: 26 Oct 202028 Oct 2020
Conference number: 10
https://ieee-isgt-europe.org/

Publication series

NameIEEE PES Innovative Smart Grid Technologies Conference Europe
Volume2020-October

Conference

Conference10th IEEE PES Innovative Smart Grid Technologies Europe, ISGT-Europe 2020
Abbreviated titleISGT-Europe 2020
CountryNetherlands
CityDelft
Period26/10/2028/10/20
OtherVirtual/online event due to COVID-19
Internet address

Keywords

  • Frequency control
  • frequency stability
  • Mongolian power system
  • , under-frequency load shedding
  • Under-frequency load shedding
  • Frequency stability

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