This technical report presents the details and findings for the project ”Addressing Barriers to Efficient Integration of Renewables” for the period 15 Jul 2020 to 30 April 2021.
The testing setup and test procedure were comprehensively explained in the previous milestone reports. After previous results from the 230-50 V, 100 ms voltage sag test revealed a number of undesired inverter behaviors, bench testing carried out in this reporting period focused on detailed short duration voltage sag testing. A new set of tests has been carried out as specified in Table 1. Twenty-four inverters were tested under using this comprehensive voltage sag test procedure. Detailed voltage sag tests highlighted that inverters may be sensitive to the depth and duration of the voltage sag, hence displaying different behaviours according to these parameters.