  The secure operation of future power systems will rely on better coordination
between transmission system and distribution system operators. Increasing
integration of renewables throughout the whole system is challenging the
traditional operation. To tackle this problem, the SmartNet project proposes
and evaluates five different coordination schemes between system operators
using three benchmark scenarios from Denmark, Italy, and Spain. In the project,
field tests in each of the benchmark countries are complemented with a number
of laboratory validation tests, to cover scenarios that cannot be tested in
field trials. This paper presents the outcome of these laboratory tests. Three
tests are shown, focusing on controller validation, analysis of communication
impacts, and how well price-based controls can integrate with the SmartNet
coordination schemes. The results demonstrate important indications for the
field tests and also show some of the limitations with the current
implementations of the coordinations schemes.

Systems and Control;Systems and Control