Abstract:The framework for virtual integration of laboratories enables co-simulation and joint experiments that include hardware and software resources hosted at geographically distributed laboratories. The underlying concept of such framework is geographically distributed real-time (RT) co-simulation. To this end, digital RT simulators are interfaced over long distances via shared communication network such as the Internet. This study proposes an architecture for a modular framework supporting virtual integration of laboratories that enable flexible integration of digital RT simulators across Europe. In addition, the framework includes an interface that enables access for third parties via a web browser. A co-simulation interface algorithm adopted in this study is based on representation of interface quantities in form of dynamic phasors. Time delay between RT digital simulators is compensated by means of phase shift that enables simulation fidelity for slow transients.

Global Real-Time Super Laboratory (Global RT-Super Lab) represents a vendor-neutral distributed platform established based on virtual interconnection of Digital Real-Time Simulators (DRTS) and Hardware-In-the-Loop (HIL) setups hosted at eight geographically distributed laboratories located in the USA and Europe. This article describes the efforts towards the realization of this large-scale virtual infrastructure and demonstration of the multi-lab setup for simulation and testing of next generation global power grids.

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As future power systems become increasingly complex and interconnected to other energy carriers, a single research infrastructure can rarely provide the required test-beds to study a complete energy system, especially if different types of real power hardware are expected to be in-the-loop. Therefore, virtual interconnection of laboratories for large-scale systems plays an important role for geographically distributed realtime simulation. This paper presents the improvements made in simulation fidelity as well as usability for establishing future simulator and laboratory connections. A general procedure is proposed and analyzed for geographically distributed real-time simulation, which allows users easily to adapt this procedure to specific test cases. A systematic and comprehensive analysis of a dynamic phasor based co-simulation interface algorithm and its improvements are provided to demonstrate the advantages as well as limitations of this approach.

Virtual integration of laboratories over long distance for real-time co-simulation of power systems Publisher:

A multi-site real-time co-simulation platform for the testing of control strategies of distributed storage and V2G in distribution networks / Bompard, ETTORE FRANCESCO;

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