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27 results on '"Kulmala, Anna"'

11. Use Case Description of Real-Time Control of Microgrid Flexibility

Author

Mashlakov, Aleksei, primary, Tikka, Ville, additional, Honkapuro, Samuli, additional, Partanen, Jarmo, additional, Repo, Sami, additional, Kulmala, Anna, additional, Abdurafikov, Rinat, additional, Keski-Koukkari, Antti, additional, Aro, Matti, additional, and Jarventausta, Pertti, additional

Published
2018
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17. The IDE4L Project: Defining, Designing, and Demonstrating the Ideal Grid for All.

Author

Repo, Sami, Ponci, Ferdinanda, Della Giustina, Davide, Alvarez, Amelia, Corchero Garcia, Cristina, Al-Jassim, Zaid, Amaris, Hortensia, and Kulmala, Anna

Abstract

The Purpose of the IDE4L project was to define, design, and demonstrate the ideal grid for all, with an active distribution network that integrates renewable energy sources (RESs) and new loads and guarantees the reliability of classical distribution networks. The active distribution network consists of the infrastructure of power delivery, active resources, and active network management (ANM) and combines passive infrastructure with active resources, ANM functionalities, and distribution automation information and communication technology infrastructure. Active distributed energy resources (DERs) include distributed generation (DG), demand, response, and storage. The concept of a commercial aggregator offering flexibility services is also integrated in an ANM. [ABSTRACT FROM PUBLISHER]

Published
2017
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18. Design and Implementation of a Substation Automation Unit.

Author

Angioni, Andrea, Kulmala, Anna, Giustina, Davide Della, Mirz, Markus, Mutanen, Antti, Dede, Alessio, Ponci, Ferdinanda, Shengye, Lu, Massa, Giovanni, Repo, Sami, and Monti, Antonello

Subjects
*ELECTRIC substations, *ELECTRIC power distribution grids, *COMPUTER architecture, *WIND forecasting, *SMART power grids
Abstract

The increment of distributed energy resources such as small photovoltaic plants or microcogeneration systems, together with the increase of electric vehicles connected to the grid, is bringing new challenges to distribution system operators (DSOs). In order to support DSOs to face such new challenges, this paper proposes a new solution based on a framework for the implementation of substation automation units. This framework supports the development of smart distribution systems solutions. The monitoring and control functionalities of the proposed solution are decentralized and, therefore, closer to the associated field devices compared to traditional solutions. Thus, the proposed approach allows us to increase performance and to reduce the system complexity by avoiding the concentration of data in one single point. An automation unit placed in the electrical substation is proposed and characterized for automation in distribution networks. Test results in laboratory and real-world environments will show some results of the proposed solution. [ABSTRACT FROM PUBLISHER]

Published
2017
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27. Coordinated Voltage Control in Distribution Networks Including Several Distributed Energy Resources.

Author

Kulmala, Anna, Repo, Sami, and Jarventausta, Pertti

Abstract

Connecting distributed generation (DG) to weak distribution networks can often cause voltage rise problems. Traditionally, these voltage rise problems have been mitigated by passive methods such as reinforcing the network. This can, however, lead to high connection costs of DG. The connection costs can in many cases be lowered if active voltage control methods are used instead of the passive approach. In this paper, two coordinated voltage control algorithms suitable for usage in distribution networks including several distributed energy resources are proposed and studied. The first algorithm uses control rules to determine its control actions and the second algorithm utilizes optimization. The operation of the implemented algorithms is, at first, studied using time domain simulations. Thereafter, the network effects and costs of both algorithms are compared using statistical distribution network planning and also practical implementation issues are discussed. [ABSTRACT FROM PUBLISHER]

Published
2014
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