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Dimensioning of energy storage for increased integration of wind power
Luleå tekniska universitet, Energivetenskap.ORCID iD: 0000-0003-0749-7366
Luleå tekniska universitet, Energivetenskap.ORCID iD: 0000-0003-4074-9529
2013 (English)In: IEEE Transactions on Sustainable Energy, ISSN 1949-3029, E-ISSN 1949-3037, Vol. 4, no 3, p. 546-553Article in journal (Refereed) Published
Abstract [en]

Energy storage can potentially allow for more production from renewable resources into existing grids. A methodology to quantify grid limitations and dimension battery energy storage systems is presented in this paper. By use of grid consumption and production data, the hosting capacity methodology is developed as a general framework for storage dimensioning that can be applied by grid operators. The method is successfully applied to an existing subtransmission grid; actual hourly production and consumption data during a two-year period is used. The role of a storage system compared to other means to handle overloading is studied. It is found that about one third of overloading instances are suitable to handle with a battery energy storage system. After this, diminishing returns per unit of storage capacity are shown to occur.

Place, publisher, year, edition, pages
IEEE , 2013. Vol. 4, no 3, p. 546-553
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:hig:diva-45727DOI: 10.1109/TSTE.2012.2228244ISI: 000325451400001Scopus ID: 2-s2.0-84880285912OAI: oai:DiVA.org:hig-45727DiVA, id: diva2:1903020
Note

Validerad; 2013; 20130616 (matbol)

Available from: 2016-09-29 Created: 2024-10-03 Last updated: 2025-10-02Bibliographically approved
In thesis
1. Increasing the hosting capacity of distributed energy resources using storage and communication
Open this publication in new window or tab >>Increasing the hosting capacity of distributed energy resources using storage and communication
2012 (English)Licentiate thesis, comprehensive summary (Other academic)
Alternative title[sv]
Öka acceptansgränsen för förnyelsebaraenergikällor med hjälp av lagring och kommunikation i smarta elnät
Abstract [en]

The use of electricity from Distributed Energy Resources like wind and solar powerwill impact the performance of the electricity network and this sets a limit to theamount of such renewables that can be connected. Investment in energy storage andcommunication technologies enables more renewables by operating the networkcloser to its limits. Electricity networks using such novel techniques are referred toas “Smart Grids”. Under favourable conditions the use of these techniques is analternative to traditional network planning like replacement of transformers orconstruction of new power line.The Hosting Capacity is an objective metric to determine the limit of an electricitynetwork to integrate new consumption or production. The goal is to create greatercomparability and transparency, thereby improving the factual base of discussionsbetween network operators and owners of Distributed Energy Resources on thequantity and type of generation that can be connected to a network. This thesisextends the Hosting Capacity method to the application of storage and curtailmentand develops additional metrics such as the Hosting Capacity Coefficient.The research shows how the different intermittency of renewables and consumptionaffect the Hosting Capacity. Several case studies using real production andconsumption measurements are presented. Focus is on how the permitted amountof renewables can be extended by means of storage, curtailment and advanceddistributed protection and control schemes.

Abstract [sv]

Användningen av el från förnyelsebara energikällor som vind och sol kommer att påverka elnätet, som sätter en gräns för hur mycket distribuerad energiproduktion som kan anslutas. Investeringar i storskalig energilager och användning av modern kommunikationsteknologi gör det möjligt att öka andelen förnyelsebarenergi genom att nätet kan drivas närmare sina gränser. Elnät med sådana nya tekniker kallas ofta för ”Smarta Elnät". Implementering av sådana smarta elnät kan vara ett alternativ till traditionell nätplanering och åtgärder som utbyte av transformatorer eller konstruktion av nya kraftledningen.Nätets acceptansgräns är ett objektivt mått för att bestämma gränsen för nätets förmåga att integrera ny förbrukning eller produktion. Målet är att skapa större transparens och bidra till ett bättre faktaunderlag i diskussioner mellan nätoperatörer och ägare av distribuerade energiresurser. Denna avhandling utökar acceptansgränsmetoden för tillämpning med energilager och produktions nedstyrning och utvecklar ytterligare begrepp så som acceptansgränsen koefficienten.Forskningen visar hur varierbarheten hos olika förnyelsebara energikällor samverkar med förbrukningen och påverkar nätets acceptansgräns. Flera fallstudier från verkliga elnät och med uppmätt produktion och konsumtion presenteras. Fokus är på hur den tillåtna mängden förnyelsebara energikällor kan ökas med hjälp av energilagring, kontrollerad produktionsnedstyrning och med avancerad distribuerade skydd och kontroll applikationer.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2012. p. 153
Keywords
Renewable Energy Generation, Energy Storage, Hosting Capacity, Curtailment, Demand Response, Dynamic Line Rating, Power System Communication, Smart Grid, Förnyelsebara energikällor, Energilagring, Acceptansgräns, Kommunikation i kraftsystem, Smarta elnät
National Category
Energy Engineering Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-45719 (URN)978-91-7439-455-9 (ISBN)
Presentation
2012-06-13, Hörsal A, Campus Skellefteå, Luleå tekniska universitet, 10:00
Opponent
Available from: 2024-10-04 Created: 2024-10-04 Last updated: 2025-10-02Bibliographically approved
2. Increasing the hosting capacity of distributed energy resources using storage and communication
Open this publication in new window or tab >>Increasing the hosting capacity of distributed energy resources using storage and communication
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Öka acceptansgränsen för förnyelsebaraenergikällor med hjälp av lagring och kommunikation i smarta elnät
Abstract [en]

This thesis develops methods to increase the amount of renewable energy sources that can be integrated into a power grid. The assessed methods include i) dynamic real-time assessment to enable the grid to be operated closer to its design limits; ii) energy storage and iii) coordinated control of distributed production units. Power grids using such novel techniques are referred to as “Smart Grids”. Under favourable conditions the use of these techniques is an alternative to traditional grid planning like replacement of transformers or construction of a new power line. Distributed Energy Resources like wind and solar power will impact the performance of the grid and this sets a limit to the amount of such renewables that can be integrated. The work develops the hosting capacity concept as an objective metric to quantify the ability of a power grid to integrate new production. Several case studies are presented using actual hourly production and consumption data. It is shown how the different variability of renewables and consumption affect the hosting capacity. The hosting capacity method is extended to the application of storage and curtailment. The goal is to create greater comparability and transparency, thereby improving the factual base of discussions between grid operators, electricity producers and other stakeholders on the amount and type of production that can be connected to a grid.Energy storage allows the consumption and production of electricity to be decoupled. This in turn allows electricity to be produced as the wind blows and the sun shines while consumed when required. Yet storage is expensive and the research defines when storage offers unique benefits not possible to achieve by other means. Focus is on comparison of storage to conventional and novel methods.As the number of distributed energy resources increase, their electronic converters need to provide services that help to keep the grid operating within its design criteria. The use of functionality from IEC Smart Grid standards, mainly IEC 61850, to coordinate the control and operation of these resources is demonstrated in a Research, Development and Demonstration site. The site contains wind, solar power, and battery storage together with the communication and control equipment expected in the future grids.Together storage, new communication schemes and grid control strategies allow for increased amounts of renewables into existing power grids, without unacceptable effects on users and grid performance.

Abstract [sv]

Avhandlingen studerar hur existerande elnät kan ta emot mer produktion från förnyelsebara energikällor som vindkraft och solenergi. En metodik utvecklas för att objektivt kvantifiera mängden ny produktion som kan tas emot av ett nät. I flera fallstudier på verkliga nät utvärderas potentiella vinster med energilager, realtids gränser för nätets överföringsförmåga, och koordinerad kontroll av småskaliga energiresurser. De föreslagna lösningarna för lagring och kommunikation har verifierats experimentellt i en forskning, utveckling och demonstrationsanläggning i Ludvika.

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2014. p. 240
Keywords
Electric Power Systems, Renewable Energy, Energy Storage, Hosting Capacity, Curtailment, Power Utility Automation, IEC 61850, Smart Grid, Elkraft, Förnyelsebara energikällor, Energilager, Acceptansgräns, Produktionsnedstyrning, Kraftsystemsautomation, IEC 61850, Smarta elnät
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-45718 (URN)978-91-7439-870-0 (ISBN)978-91-7439-871-7 (ISBN)
Public defence
2014-03-24, Hörsal A, Campus Skellefteå, Luleå tekniska universitet, 09:00
Opponent
Available from: 2024-10-04 Created: 2024-10-04 Last updated: 2025-10-02Bibliographically approved

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Etherden, NicholasBollen, Math

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