GreenGrids-Flex
The flexible grid infrastructure enables power grid evolution and decarbonization
About the research and the project aims
Renewable energy resources (RER) and renewable energy storage (RES) are being deployed around the world at ever-increasing rates. The resource that has already been deployed can be utilized in ways that improve its resource efficiency and economic value. The idea of a Virtual Power Plant (VPP) consisting of an Energy Management System (EMS) that smartly manages a Battery Energy Storage System (BESS) for providing various value-enhancing services has been proposed in our work. The problem of BESS management has been divided into two separate problems prognosis and control. The prognosis problem is tackled by the proposed Prognosis Module Optimization (PMO). The BESS Schedule is the output of the Prognosis Module and is the calculated expectation of how the EMS should operate the BESS while accounting for the involved uncertainties. This schedule also outlines the safety factors that help in the safe operation of the Real-time Operation Module (ROM) despite the uncertain operations involved. The ROM tackles the control problem.
Improved economic viability increases the technology adoption rate at the consumer level. Our work tries to do it for RER and RES for a sustainable future.
This project aims to create a synergetic relationship between local RER and RES owners and sustainable, resource-efficient development for the whole energy system. This enables the expedited deployment of these technologies. The VPP creates value for TSOs through frequency-related ancillary services and for the DSOs in peak shaving by offloading local bottlenecks, and in the future by reactive power management for both TSO and DSO. The local resource owners get direct economic benefits by implementing our EMS on their resource units, irrespective of their size. The EMS when deployed at any RER or RES improves its economic competitiveness. This has social, environmental, and technological benefits.
The EMS prognosis and control algorithms have been designed, simulated, and tested on historical data. Pilot studies require formal implementation of the algorithms running in real-time which would require development in part.
This research is in line with UN’s SDG 7, 8.4, 9.4, 11.6, and 12.2 as it enables affordable, reliable, sustainable, and modern energy, improves resource efficiency, and efficient use of natural resources.
The project has been performed within the RCAM research group at KTH led by Professor Lina Bertling Tjernberg and in collaboration with CheckWatt. During 2021 the project work was sponsored by the SweGRIDS research program. More information from here FPS30, SweGRIDS (kth.se). In 2022 the projects were selected for the IVAs 100-list of national projects with high potential for creating benefits for commercialisation and impact in society. The GreenGrids-Flex models are included in a chapter in the Handbook on Climate Change and Technology (e-elgar.com) which was lanhced in befinning of 2024.
Read more from here:
[1] L. Bertling Tjernberg, H. Shafique (2023), Chapter 17, The flexible grid infrastructure enabling power grid evolution and decarbonization In Urban F. and Nordensvärd J. (Eds) Handbook on Climate Change and Technology, Edward Elgar Publishing, https://doi.org/10.4337/9781800882119.00029 (pp 274-290), December 2023.
[2] Real-time Operation Model for Energy Management System of Battery Energy Storage System - Case Study: The School of Sinntorp, H. Shafique, D.-E. Archer, R. Eriksson, L. B. Tjernberg, Accepted to be published in the proceedings of the International Conference on Probabilistic Methods Applied to Power Systems (PMAPS), Manchester, June 2022.
[3] Energy Management System (EMS) of Battery Energy Storage System (BESS) – Providing Ancillary Services, H. Shafique, L. B. Tjernberg, D.-E. Archer, and S. Wingstedt, in IEEE PowerTech, Madrid, Spain, June 2021.
[4] Behind the Meter Strategies Energy management system with a Swedish case study," H. Shafique et al., " IEEE Electrification Magazine, vol. 9, no. 3, s. 112-119, 2021.
For access to a private copy send a request to linab@kth.se .
