“DER AGGREGATION AND OPTIMIZATION FOR MARKET INTEGRATION” – A DATA-DRIVEN APPROACH BY R&D NESTER
R&D Nester project "Aggregation - Research on Key Technologies of Distributed Flexible Resource Aggregation and Optimization for EU Market Operation" aims at characterise the aggregation of distributed energy resources, develop an aggregation terminal for distributed flexibility energy resources, and build an application of the aggregation of distributed energy resources in the European market, by developing appropriate models and modules for simulation in closed-loop with hardware in the loop (HIL) in order to validate the functions of the developed technology.
This project is developed by R&D Nester in cooperation with China Electric Power Research Institute (CEPRI).
In the scope of this project, it was produced a data-driven approach to tackle the stochastic optimal power flow problem in an electric power system. The objective is to balance the operational costs and the risks of constraint violations in the network. The approach uses ambiguous distribution sets centered on a finite set of training data to account for uncertainties in the network. It leverages the Wasserstein metric to determine control policies that can withstand both the forecast errors and sampling errors present in the data set by quantifying the proximity between the empirical distributions and the actual unknown distribution. The goal is to support the reduction of over-voltage caused by high integration of renewable energy in the distribution network. This is useful for System Operators (T/DSO) to efficiently plan the grid operation, or for aggregators to draw operational strategies against penalties due to connection constraints' violation.
As a result of this developed work, R&D Nester Team presented a paper titled "Improving renewable energy integration with distributionally robust stochastic optimal power flow".
This paper was presented at the 22nd edition of Wind & Solar Power System Integration Workshop, that was held last September in Copenhagen, Denmark.
The Wind & Solar Power System
Integration Workshop provides an international forum to discuss project
experiences, innovative ideas, and present results from ongoing research.
It aims to stimulate interdisciplinary
thinking between wind/solar/hydrogen energy and power transmission industries
as well as universities and to identify subjects requiring more research
efforts.
Benefits include the high technical level
in considering challenges, solutions and trends and combining international
project experience with networking between industry and academia.
Presentations are held by invited speakers
from companies and leading research institutes as well as by workshop
participants selected through a call for papers.
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