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Solutions to Increase PV Hosting Capacity and Provision of Services from Flexible Energy Resources

Laaksonen, Hannu; Parthasarathy, Chethan; Hafezi, Hossein; Shafie-khah, Miadreza; Khajeh, Hosna; Hatziargyriou, Nikos (2020-07-27)

 
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https://doi.org/10.3390/app10155146

Laaksonen, Hannu
Parthasarathy, Chethan
Hafezi, Hossein
Shafie-khah, Miadreza
Khajeh, Hosna
Hatziargyriou, Nikos
MDPI AG
27.07.2020
doi:10.3390/app10155146
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Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe2020111790911

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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Tiivistelmä
Future smart grids will be more dynamic with many variabilities related to generation, inertia, and topology changes. Therefore, more flexibility in form of several active and reactive power related technical services from different distributed energy resources (DER) will be needed for local (distribution network) and whole system (transmission network) needs. However, traditional distribution network operation and control principles are limiting the Photovoltaic (PV) hosting capacity of LV networks and the DER capability to provide system-wide technical services in certain situations. New active and adaptive control principles are needed in order to overcome these limitations. This paper studies and proposes solutions for adaptive settings and management schemes to increase PV hosting capacity and improve provision of frequency support related services by flexible energy resources. The studies show that unwanted interactions between different DER units and their control functions can be avoided with the proposed adaptive control methods. Simultaneously, also better distribution network PV hosting capacity and flexibility services provision from DER units even during very low load situations can be achieved.
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