ABSTRACT
The DC side of a PV system acts as an antenna. In combination with an inverter this antenna is able to radiate emissions down to relatively low frequencies of 150 kHz disturbing appliances such as radio and TV sets. So far no standard considers this quite PV specific EMC problem. On the other hand PV systems are exposed to the impacts of direct and, more often, indirect lightning strokes. Until now no reliable knowledge exists on the induced overvoltages of indirect lightning strokes which stress module insulation and require overvoltage protection for the whole PV system. This, too, is a matter of EMC. Both mentioned EMC aspects - emission and immunity - are now jointly treated in the course of the PV-EMI project which is partially funded by the EU and will finish in June 2000. This paper presents its major outcome.
