Contribution / expertise:

• Facilitation of the Power Quality lab (FPGLab) and associated knowledge infra structure.
• Basic design, specification and knowledge of testing.
• .......Flex Power Grid Lab

The operational tests will be performed in the Flex Power Grid Lab, a medium-voltage power electronic laboratory situated in Arnhem (NL). The objective of the tests is to ensure that the Smart MV/LV-station complies with the specified requirements as set out in the project scope.

 

The operational tests are intended to verify the design of the Smart MV/LV-station with regards to its performance under normal operating conditions, overload conditions, islanding conditions, adverse power quality conditions, abnormal conditions and transient fault conditions. The tests shall demonstrate that:

The Smart MV/LV-station functions properly and autonomously with no failures, correct voltage and current waveforms and correct operation of all internal circuits under the various specified test conditions.

The voltage and currents stresses, especially during adverse power quality conditions, are within the capabilities of the individual sub-assembly components and other internal circuits.

The cooling provided is adequate and no component is overheated, even under the worst temperature and operating conditions.

The protection characteristic is maintained despite the effect of temperature and adverse operating conditions, in particular loss of monitoring and control functionality.

 

Furthermore, the operational tests are intended to:

Explore the limits of the Smart MV/LV-station.

Estimate the achievable robustness of the Smart MV/LV-station.

Estimate the achievable reliability of the Smart MV/LV-station, partially through autonomous island operation.

Indicate the contribution of the Smart MV/LV-station in: decreasing the peak load in congested MV grid segments; supplying reactive power; and improving power quality.

 

The acceptance criteria for the performed tests are aligned with those prescribed in the prevailing (inter)national standards for distribution stations and equipment.