The testing laboratory for PV inverters of the PV Laboratory of the Bern University of Applied Sciences was accredited according to ISO 17025 from 2017-2019 (STS 0644). The range of tests included:

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• Total and dynamic efficiency according to IEC 50530

• Harmonic currents according to IEC 61000-3-2 and IEC 61000-3-12

• EMV conducted radio interference according to CISPR 11

 

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The PV laboratory is currently being expanded in the area of grid connection of PV inverters. In this context, the laboratory automation is being revised and converted to a browser-based system.

The PV Laboratory is in charge of the project management of the following new IEC standards:

 

• IEC 63409-4: Photovoltaic Power Generating Systems Connection with the Grid - Testing of Power Conversion Equipment - Part 4: Interface protection and fault ride through
   

• IEC 63409-6: Photovoltaic Power Generating Systems Connection with the Grid - Testing of Power Conversion Equipment - Part 6: Power control functions and grid support

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The re-accreditation of the PV laboratory is planned in connection with the completion of the laboratory automation and the new testing standards.