Development and Implementation of a Flexibility Platform for Active System Management at Both Transmission and Distribution Level in Greece

Abstract

This work focused on prescribing, designing, implementing, and evaluating a pilot project conducted in the Greek power system that addressed balancing and congestion management issues that system operators (SOs) face within the clean energy era. The considered pilot project fully focused on the development of the F-channel platform, including the idea behind this application, the steps that were taken in the process, and the outcomes of the performed activities fitting into the overall picture of the OneNet project. The specified F-channel platform is a web-based, client-server application that uses artificial intelligence (AI) techniques and cloud computation engines to improve the management of the active power for the TSO-DSO coordination. The flexibility of the grid’s resources was identified, and an integrated monitoring system based on the precise forecasting of variable generation and demand was implemented. The focus areas were congestion management, frequency control, and voltage control services, for which corresponding network models were created in close cooperation with system operators. The obtained results are essential for the remaining demonstration results because they offer an incredibly accurate basis for further research into their use in congestion management and other weather-related enhanced transmission and distribution system planning and operation practices.

Fault distance measurement method for wind power transmission lines based on improved NSGA II

“…The impedance characteristics of the wind power transmission system are affected by the frequency deviation characteristics and weak-grid impacts of doubly-fed wind turbines [1][2][3], which poses challenges to traditional fault location methods that are based on power frequency. Furthermore, factors including the operational state of wind farms, transitional resistance, and type of fault all significantly impact fault location accuracy [4,5]. Therefore, the research of fault location methods that are suitable for wind power transmission lines is of significant research importance.…”