Resilient and Optimal Micro-Energy-grid (ROME)
Microgrid is the term of a bounded electrical network with one or no connection to the main grid. A microgrid has one or more energy sources (e.g. solar panel, hydropower, diesel generator) and more consumers. An example of microgrid is a community on an island or an isolated neighbourhood, but may also be an industrial area, a housing cooperative or a boat. It might be preferable to limit the exchange of energy with the main grid (because the connection to the main grid has poor capacity) or the microgrid must do without exchange because the connection does not exist. The challenges are to always balance the available power with demanded power. In a microgrid a change in available or requested power will often be of great importance because it accounts for a large part of the total available or demanded effect. The advantage of a microgrid is that one can have a good and stable local grid, regardless of the existing or non-existing main grid.
ROME is a collaborative project between SINTEF Digital, NTNU and Tensio, all located in Norway, and Kalasalingam University in India. Both Norway and India have many areas that can be developed as microgrid and the issues are the same.
The goal of ROME is to develop good methods and tools for planning and operating smart micro grid, as well as winning experiences with microgrid.
The main results are:
- the design, lab testing, and deployment at the pilot area of the main ICT infrastructure needed to collect relevant and realistic data.
- the collection of real-time data (30 second time interval) from the pilot area (Froan Islands). Data are stored at SINTEF Digital and are available for further research.
- the implementation and publication of methods for distributed generation (DG) optimal location. This has been demonstrated for the simulated ROME microgrid (Froan Islands) and for standard IEEE networks.
- the implementation and publication of methods for optimal Energy Management of Microgrids. This has been demonstrated for the simulated ROME microgrid (Froan Islands) and for standard IEEE networks.
- a Dockerized framework for remote Energy Management System deployment. This has also been partially tested in the FME CINELDI (https://www.sintef.no/projectweb/cineldi/).
ROME project results contribute to the definition of more sustainable smart/micro grids, by increasing the RES penetration and reducing the management and maintenance costs. In particular, the work done for developing algorithms and tools for microgrid planning and management have demonstrated to improve the voltage profiles and reduce network losses on the simulated microgrid generated from the network and real data collected at the Living pilot at Froan Islands, Norway. Moreover, these tools have been tested with standard IEEE network, usually taken as benchmark.
ROME project has also contributed actively into sharing knowledge within the (FME CINELDI (https://www.sintef.no/projectweb/cineldi/). The researcher working in ROME have been involved actively in CINELDI with clear benefits under the aspect of building competences and learning not only from the DSO partner in ROME, but from a larger arena such as the one that FME CINELDI provides.
ROME will develop technology, methods and best practice for optimal planning and operation of a sustainable resilient and optimal micro-energy grid with a minimum of CO2 emission. Rome will offer an integrated chain of tools and methods, where possible, taken into use commercial off-the-shelf technology.
ROME focuses on the microgrid approach of the smart grid. Norway and India have many areas qualifying to be defined as microgrids. Norway in terms of islands along the coast with weak and old sea cables not profitable to replace if error occurs. Norway has more than 300 islands with > 1 km power tie lines to the mainland. In the India context, there are almost 250 million people without access to electricity. Grid extensions are proving to be infeasible in many regions due to economical, geographical and technological challenges. A great amount of decentralization is required. Further, India also suffers from poor load factors, dispersed demand and harsh environments. Therefore, microgrids emerge as a natural choice in these scenarios and more knowledge and experience are required.
To reach the goals of Rome, an important brick is to develop an ICT infrastructure enabling to gather real time data concerning user consumption, DER production, testing of RES potential and RES production. Further, ROME will develop models (some both steady state and dynamical) of microgrid components and the consumptions, as inputs to the microgrid planning-, the management/operation- and the prosumer management tool chains. ROME will use the living lab of Froan (an island outside mid Norway) to gather realistic data of the state of a microgrid, production from both fossil fuel generators and renewable energy sources, consumption and batteries. Froan will also act as a test bed for the results of the project by e.g. as being HW in HW-in-the-loop simulations.
ROME will also do research on master-, PhD- and PostDoc level, thus the results will be known for the future experts in the field.