Electro-Magnetic Interference from Solar Photovoltaic Arrays
Electro-magnetic interference (EMI) is typically taken to mean radiofrequency (RF) emissions emanating from PV systems impacting nearby radio receivers, but can also include
For the receive earth station, this once-a-day natural phenomenon of additional solar thermal noise is noticed as a source of interference, which causes signal degradation (interference causing lower link availability) or even daily outages (total signal loss) for small periods of time.
Federal Aviation Administration (FAA) guidelines suggest that any interference with radar, navigation aids, or infrared communications should be checked before the solar panels are actually installed. Interference with infrared communications might occur due to increased temperature of the panels in the full sunlight.
To avoid interference by PV systems at airports, the following measures are suggested . The PV installations should be located at least 200–250 ft away from the communication systems. PVI should be avoided where they might cause interference to navigational aids. Radar absorbing material could be used to reduce unwanted signal reflections.
For the systems external to the PVI, the panels and the DC cables can act as antennae and can therefore be treated as a source of interference for EMC analysis. The radiated interference can also result from the converters.
PDF includes complete article with source references for printing and offline reading.
Download detailed specifications for our distributed PV energy storage systems and liquid cooled ESS containers.
Calle de la Energía 24
Madrid 28045, Spain
+34 911 224 722
Monday - Friday: 8:00 AM - 7:00 PM CET