Radiated Electromagnetic Emission from Photovoltaic Systems—Measurement Results: Inverters and Modules

Désirée Kroner (), Urban Lundgren, André Augusto and Math Bollen
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Désirée Kroner: Energy Engineering, School of Information and Engineering, Dalarna University, 79188 Falun, Sweden
Urban Lundgren: Wireless Communication, RISE Research Institute of Sweden, Box 857, 50115 Borås, Sweden
André Augusto: Energy Engineering, School of Information and Engineering, Dalarna University, 79188 Falun, Sweden
Math Bollen: Electrical Power Engineering, Luleå University of Technology, 97187 Skellefteå, Sweden

Energies, 2024, vol. 17, issue 8, 1-13

Abstract: Radiated electromagnetic emission of photovoltaic systems, for example, adversely impacting radiocommunication, can pose a major barrier against further increase in photovoltaic penetration. This is particularly the case near sensitive infrastructure and activities such as hospitals, airports, search and rescue, and military. To understand the impact of each component and installation detail, we performed systematic radiated electromagnetic emission measurements on comparable commercial photovoltaic systems in the frequency range 150 kHz to 30 MHz. Our measurements indicate that string inverters are unlikely to interfere with radiocommunication when installed according to recommended standards, rules, guidelines, and regulations. It was shown that module-level power optimizers are the main cause of high levels of radiated emissions. The frameless bifacial module showed higher levels of radiated emissions than the monofacial module with frame. Changes in cable management and earthing have less impact on radiated emissions than the choice of solar inverter concept and module type.

Keywords: radiated electromagnetic emissions; photovoltaic power system; module type; inverter type; module-level power optimizer; module-level power electronics (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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