The SuSTAINABLE concept is based on the cloud principle, where the distribution system operator:
- collects data from smart metering infrastructure and other distributed sensors, and communications from external partners, market operators, and maintenance staff;
- transforms data into information using tools such as distribution state-estimation, prediction tools, data mining, risk management and decision-making applications;
- communicates settings to power quality mitigation devices, protection relays and actuators, distribution components and distributed flexible resources;
- assesses its market strategy as a provider of ancillary services and balancing services.
The concept presented in the following scheme intends to show that using the right input data and appropriate tools it is possible to improve the flexibility and reliability of the system.
Figure 1 - Main Inputs and Outputs for the SuSTAINABLE Concept
A multi-objective decision-making scheme will be designed to keep network voltage inside operational constraints:
It will also focus on flexible protection schemes, to avoid failures in selectivity and reliability of the protection plan in low-impedance earthed neutral MV networks related to DG integration.
Finally, the market strategy to be defined by the SuSTAINABLE concept encompasses aspects related to flexibility pricing for distribution network users and distribution system operators strategies with respect to balancing mechanisms and ancillary services markets.
An overview of the participants in the consortium is given in Figure 2. Leading experts in the field of Smart Grids have formed a consortium to collaborate on this project and, bringing together their expertise, skills, resources and knowledge to perform the tasks that allows to develop the concept created.
Figure 2 SuSTAINABLE Footprint
The consortium has 8 partners, from 5 different European Member States. There is one WP dedicated to the global project coordination, which includes the technical coordination and the project management, one WP dedicated to the dissemination of the project results, 3 WPs dedicated to Research and Development, contributing to the progress beyond the state of the art, 2 WPs linked with validation and demonstration activities, which take place in 2 different sites of already on-going projects in Europe: Rhodes Island Greek site and InovGrid Portugal site in Évora (see in Figure 3). Finally, there is one WP dedicated to regulatory issues and another to replication and scalability issues, which the consortium thinks it’s crucial for the integration of the generated knowledge from the SuSTAINABLE project in the global European Smart Grids landscape.
There are also 10 Advisory Board Members that contribute with their knowledge and vision to evolve this concept and turn it more scalable and replicable.
Figure 3 SuSTAINABLE Validation Sites
The members of the consortium will work together on the nine work packages listed above following the SuSTAINABLE concept. The relationship between the several WPs is described in Fig. 4.
Figure 4 Project Structure and associated work packages
The main functionalities of the SuSTAINABLE are based on 3 key pillars - Predictability (P), Observability (O) and Controllability (C):
1. Load and Renewable Energy Forecast at MV level
- Using load time series data from DTC, EB and weather forecasts
2. Grid Monitoring and State Estimation at MV level
- Gather all synchronized information available from different sources: AMI, DTC, PMU
3. Voltage Control at LV level and voltage control in MV networks
- Sending set-points to DER located at the LV in order to control feed-in power and avoid curtailment
- OPF will produce set of control actions for day ahead and will adjust them in the intra-day
An important contribution that the consortium members bring to the table is the ability to align SuSTAINABLE with other related initiatives, since they are very active in EU research on smart grids.