Validation of PV Inverters Frequency Response Using Laboratory Test Platform

This paper deals with testing of photovoltaic inverters frequency response using a test facility located in REsLAB at the Department of Electrical Power Engineering, Brno University of Technology. It includes practical experience with the test site, the test procedure for verification of the frequency response and description of tested devices. Overall, six devices were tested. The presented results of measurements are graphically processed and subsequently the compliance with the relevant standards and national grid code is evaluated. The conclusion contains a summarization of the findings and practical recommendations.