Problem statement:
Before doing real investment on BESS system, how should I validate its performance via a simulation tool?
 
Objective:
  • To demonstrate the interest of the regulation and power management services provided by active substations integrating energy storage to enhance TSO/DSO interaction and to improve grid stability and reliability.
  • To demonstrate the interest of integrating energy storage systems with control functionalities at the substation of a WPP to improve its regulation as well as the stability and reliability of the transmission grid.
  • To design and implement an innovative facility addressed to develop advanced control systems for active substations using a virtual environment and to demonstrate the operation of the active substations in the demonstration sites by assessing the effectiveness of their functionalities and services.
Achievement: 
 
  • During the second year of the project, the design, adaptation, purchases, construction and starting-up of the advanced control and demonstration centre were finished. A virtual environment that will be used to develop the control algorithms and operational procedures of the active substations has been created. An intensive effort on HIL platform design and development have been made, progressing in the analysis of power network, BESS models, power converter models, substation-related pieces of equipment, and implementation in real time domains. Main results in this demo are related to 1st and 2nd level controllers, BESS emulator, Remote Terminal Units and Phasor Measurement Units. In addition, an effective mechanism has been developed to test the performance of the actual BESS control hardware/software provided by a given manufacturer when working under realistic application conditions. Dedicated communication procedures have been developed based on the standard protocols to enable area-level real-time close-loop controllers with PMU. RTUs have been adapted to work with RT simulation signals in the HIL simulation platform.  
  • The achievement of demo 6 with simulation abilities paves a crucial cornerstone to simulate and understand results of demo 1, 2 and 7 but also can support calculation business cases and scaling up. 
 
Universidad Loyola Andalucía (LUA) has led, in cooperation with WP5 and WP6 leaders (ABG and JEMA), the design of the Supervisory, Control and Data Acquisition (SCADA) systems to be deployed within two of the demonstrators of the project, the Active Distribution Node in Cyprus and the Wind Power Plant in Greece. 
The SCADAs of these demonstrators, both based on Battery Energy Storage Systems (BESSs), will enable the monitoring and control of their operation and performance at the substation level. Moreover, from these specifically designed SCADAs, the operation of the BESS can be planned days in advance based on sophisticated optimization algorithms that take into account the specific requirements for ancillary services of the system, as well as the predictions and forecasts of the profiles of, for instance, the wind speed and solar radiation, demand and price profiles, and the ambient temperature. 
The monitoring systems developed thus allow increasing the flexibility of the regions of the grid that are electrically close to the demonstrators while optimizing the use of the BESS. Additionally, the SCADAs will enable the monitoring and evaluation of the performance of the demonstrators during the last stages of the project, by contrasting the data collected from the demonstrator with the virtual environment developed in LUA’s premises. With this aim, a third SCADA system has been jointly developed by LUA and Schneider Electric with the same specifications and functionalities as those of the demonstrators in Cyprus and Greece.
 
Interface of the BESS-based substation SCADA developed for the virtual environment at LUA’s premises