Modelling and Control of DC Microgrids in Residential Buildings

Sergio Motta, Antti Alahäivälä, Poria Divshali, Riku Pasonen, Anna Kulmala, Kari Mäki, YoungPyo Cho, HongJoo Kim

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

Abstract

Microgrids are considered as one of the most promising directions for the future of power systems. A major point in the characterization of a Microgrid is its ability to operate isolated from the main grid (islanded mode). However, the management strategy to allow such operation still poses a significant challenge in the implementation of these systems. The focus of this work is the behaviour of the distribution grid of a large-scale residential building during grid-connected and islanded modes, especially in terms of the control strategy to maintain a stable and uninterrupted supply of electricity.We developed aplatform for simulating a DC Microgrid’s (DCMG) long-term operation using a PSCAD model. This model allows for the simulation of a residential DCMG, targeting its energy management to maintain power balance under various conditions, including during islanded operation. This work discusses the control strategy used to maintain the voltage level at the distribution bus within a 5% limit of it’s rated value. For a theoretical building, the model yielded 2 hours of unlimited supply, and extra 4 hours of critical-load only. The results indicates that the proposed control strategy allows for adequate independence and stable operation during loss of grid connection.
Original languageEnglish
Title of host publicationProceedings of the 25th International Conference on Electricity Distribution
Subtitle of host publicationCIRED 2019
Number of pages5
ISBN (Electronic)978-2-9602415-0-1
Publication statusPublished - Jun 2019
MoE publication typeA4 Article in a conference publication
Event25th International Conference on Electricity Distribution - Madrid, Spain
Duration: 3 Jun 20196 Jun 2019
http://www.cired2019.org/

Conference

Conference25th International Conference on Electricity Distribution
Abbreviated titleCIRED 2019
CountrySpain
CityMadrid
Period3/06/196/06/19
Internet address

Fingerprint

Energy management
Electricity
Electric potential

Cite this

Motta, S., Alahäivälä, A., Divshali, P., Pasonen, R., Kulmala, A., Mäki, K., ... Kim, H. (2019). Modelling and Control of DC Microgrids in Residential Buildings. In Proceedings of the 25th International Conference on Electricity Distribution: CIRED 2019 [867]
Motta, Sergio ; Alahäivälä, Antti ; Divshali, Poria ; Pasonen, Riku ; Kulmala, Anna ; Mäki, Kari ; Cho, YoungPyo ; Kim, HongJoo. / Modelling and Control of DC Microgrids in Residential Buildings. Proceedings of the 25th International Conference on Electricity Distribution: CIRED 2019. 2019.
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Motta, S, Alahäivälä, A, Divshali, P, Pasonen, R, Kulmala, A, Mäki, K, Cho, Y & Kim, H 2019, Modelling and Control of DC Microgrids in Residential Buildings. in Proceedings of the 25th International Conference on Electricity Distribution: CIRED 2019., 867, 25th International Conference on Electricity Distribution, Madrid, Spain, 3/06/19.

Modelling and Control of DC Microgrids in Residential Buildings. / Motta, Sergio; Alahäivälä, Antti; Divshali, Poria; Pasonen, Riku; Kulmala, Anna; Mäki, Kari; Cho, YoungPyo; Kim, HongJoo.

Proceedings of the 25th International Conference on Electricity Distribution: CIRED 2019. 2019. 867.

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

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AU - Motta, Sergio

AU - Alahäivälä, Antti

AU - Divshali, Poria

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AU - Kulmala, Anna

AU - Mäki, Kari

AU - Cho, YoungPyo

AU - Kim, HongJoo

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N2 - Microgrids are considered as one of the most promising directions for the future of power systems. A major point in the characterization of a Microgrid is its ability to operate isolated from the main grid (islanded mode). However, the management strategy to allow such operation still poses a significant challenge in the implementation of these systems. The focus of this work is the behaviour of the distribution grid of a large-scale residential building during grid-connected and islanded modes, especially in terms of the control strategy to maintain a stable and uninterrupted supply of electricity.We developed aplatform for simulating a DC Microgrid’s (DCMG) long-term operation using a PSCAD model. This model allows for the simulation of a residential DCMG, targeting its energy management to maintain power balance under various conditions, including during islanded operation. This work discusses the control strategy used to maintain the voltage level at the distribution bus within a 5% limit of it’s rated value. For a theoretical building, the model yielded 2 hours of unlimited supply, and extra 4 hours of critical-load only. The results indicates that the proposed control strategy allows for adequate independence and stable operation during loss of grid connection.

AB - Microgrids are considered as one of the most promising directions for the future of power systems. A major point in the characterization of a Microgrid is its ability to operate isolated from the main grid (islanded mode). However, the management strategy to allow such operation still poses a significant challenge in the implementation of these systems. The focus of this work is the behaviour of the distribution grid of a large-scale residential building during grid-connected and islanded modes, especially in terms of the control strategy to maintain a stable and uninterrupted supply of electricity.We developed aplatform for simulating a DC Microgrid’s (DCMG) long-term operation using a PSCAD model. This model allows for the simulation of a residential DCMG, targeting its energy management to maintain power balance under various conditions, including during islanded operation. This work discusses the control strategy used to maintain the voltage level at the distribution bus within a 5% limit of it’s rated value. For a theoretical building, the model yielded 2 hours of unlimited supply, and extra 4 hours of critical-load only. The results indicates that the proposed control strategy allows for adequate independence and stable operation during loss of grid connection.

M3 - Conference article in proceedings

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Motta S, Alahäivälä A, Divshali P, Pasonen R, Kulmala A, Mäki K et al. Modelling and Control of DC Microgrids in Residential Buildings. In Proceedings of the 25th International Conference on Electricity Distribution: CIRED 2019. 2019. 867