Towards composition principles and fractal architectures in the context of smart grids

2016 ◽  
Vol 58 (1) ◽  
Author(s):  
Denis Bytschkow

AbstractThe operation of smart grids is based on different energy management and control systems. Despite their variety, all of them offer similar functionalities to achieve a stable, reliable, sustainable and economic supply of energy. Similarity offers advantages for the construction of systems that are not well reflected in current system architectures. This work introduces foundations for specifications and development of fractal architectures that are based on self-similarity. We aim to apply those principles on two smart grid use cases: virtual power plants and optimal power flow control applications.

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4665
Author(s):  
Duarte Kazacos Winter ◽  
Rahul Khatri ◽  
Michael Schmidt

The increasing number of prosumers and the accompanying greater use of decentralised energy resources (DERs) bring new opportunities and challenges for the traditional electricity systems and the electricity markets. Microgrids, virtual power plants (VPPs), peer-to-peer (P2P) trading and federated power plants (FPPs) propose different schemes for prosumer coordination and have the potential of becoming the new paradigm of electricity market and power system operation. This paper proposes a P2P trading scheme for energy communities that negotiates power flows between participating prosumers with insufficient renewable power supply and prosumers with surplus supply in such a way that the community welfare is maximized while avoiding critical grid conditions. For this purpose, the proposed scheme is based on an Optimal Power Flow (OPF) problem with a Multi-Bilateral Economic Dispatch (MBED) formulation as an objective function. The solution is realized in a fully decentralized manner on the basis of the Relaxed Consensus + Innovations (RCI) algorithm. Network security is ensured by a tariff-based system organized by a network agent that makes use of product differentiation capabilities of the RCI algorithm. It is found that the proposed mechanism accurately finds and prevents hazardous network operations, such as over-voltage in grid buses, while successfully providing economic value to prosumers’ renewable generation within the scope of a P2P, free market.


1997 ◽  
Vol 12 (4) ◽  
pp. 1629-1634 ◽  
Author(s):  
M. Noroozian ◽  
L. Angquist ◽  
M. Ghandhari ◽  
G. Andersson

2017 ◽  
Vol 71 ◽  
pp. 742-766 ◽  
Author(s):  
Hamdi Abdi ◽  
Soheil Derafshi Beigvand ◽  
Massimo La Scala

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