Concept Gird is a new laboratory built by EDF R&D at Moret sur Loing (Les Renardières). Its commissioning is foreseen March 2013. Concept grid is a representative distribution network:

• Primary substation 20/20 kV with three neutral grounding possible (resistor, Petersen coil and smart electronic neutral);
• Underground 20 kV self healing loop ;
• 20 kV overhead line with coordinated automatic reclosers located at the head of the feeder and in its middle ;
• The length of the network is artificially increased thanks to resistors, reactors and capacitors units (120km 20 kV network)
• LV network fed thanks to two secondary substations:
  • Variable length in order to change the short circuit power;
  • Five little homes with new usages (PV , wind mills, EV, heat pumps, storage, …);
  • PV generation ;
  • 50kVA Motor/generator set
  • 120kVA LV amplifiers able to inject electric perturbations (frequency change, harmonics, dip sags, …);
  • Hardware in the loop simulation thanks to the LV amplifiers.

A communication network is associated to the power network (optic fibers, copper, PLC, radio, Adsl, …).