Low-Cost Communication Interface between a Smart Meter and a Smart Inverter

Christopher E. Piggott, Zachary Caruso and Nenad G. Nenadic ()
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Christopher E. Piggott: Rochester Institute of Technology, Rochester, NY 14623, USA
Zachary Caruso: Avangrid, Rochester, NY 14606, USA
Nenad G. Nenadic: Rochester Institute of Technology, Rochester, NY 14623, USA

Energies, 2023, vol. 16, issue 5, 1-25

Abstract: The need for a low-cost interface between the grid and small (<250 kW) renewable distributed energy resources (DERs) is growing in importance as the number of small DERs continues to grow. In this study, a system architecture was proposed to investigate paths to an affordable interconnection for small renewable DERs.Then, a low-cost communication interface between a smart meter and smart inverter was installed using a commercially available bridge device. The interface device was selected based on an assessment concluding that it would be able to support the emerging advanced metering infrastructure (AMI) network. Next, messages were passed across the experimental end-to-end communication interface to test their speed and reliability. Success was based on whether the key functions defined in the standard IEEE 2030.5 were executed or not, which include set points, disconnect/reconnect, and Volt-VAr optimization. The results of the testing provided detailed insights into the benefits and limitations of the proposed architecture. Intermittency of weather-dependent DERs (e.g., solar and wind) adversely impacts the power quality of a DER, making hourly day-ahead prediction nearly impossible. With this in mind, the investigation also considered the potential of using smart inverter functions to reduce DER’s intermittency.

Keywords: DER; VPP; AMI; smart meter; smart inverter; intermittency (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: 2023
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