Rapid Emission Check of Photovoltaic Installations Using Time Domain Measurements

This article represents a contribution to the Rapid Emission Check of installations project in IEC CISPR Sub Committee A (SC A) Joint Working Group 9 (JWG9). Time domain measurements are used to identify sources and critical frequencies of radiated electromagnetic emissions. The objective of such a said quick evaluation is to provide PV installers with a procedure and affordable tools to effectively detect new interference situations arising from PV installations. IEC CISPR SC A JWG9 was established in 2023 and is tasked with developing guidelines for Rapid Emission Checks addressed to stakeholders like installers. This group will consider quick alternatives with more affordable instrumentation and test methods than those used when testing according to international standards in accredited laboratories. The proposal in this article includes a reduced test sequence regarding the number of measurement points and axis compared to more extensive methods in other CISPR publications. In the study case presented, oscilloscope-based time domain emissions measurements provide an agile and cost-effective alternative compared to traditional EMI receivers.