期刊
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
卷 72, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2022.3225916
关键词
Electronics packaging; Relays; Instruments; Impedance; Modems; Couplers; Power system reliability; Attenuation; impedance; microgrid; noise; power line communication (PLC)
Electric power lines have the potential to create a widespread wired communication network, connecting electrical loads, power meters, and other devices. However, noise, signal attenuation, and unknown line impedances complicate power line communication (PLC) in practice. This article presents instrumentation that characterizes and verifies line characteristics for PLC applications, allowing for verification and adaptive tuning of PLC systems. Field experiments demonstrate reliable communication in challenging environments where conventional PLC fails.
Electric power lines could, in principle, provide a ubiquitous wired communication network linking electrical loads, power meters, and other devices. This communication infrastructure could unlock new sensing and control capabilities, improving the efficiency and reliability of power system operations. In practice, however, power line communication (PLC) is complicated by both known and variable difficulties related to background noise, signal attenuation, and unknown line impedances. This article develops instrumentation that characterizes and verifies line characteristics for PLC applications, especially for demand response and control applications. This instrumentation provides a window to key variables that affect communication on a local power distribution network. With these measurements, limits on PLC communication can be verified before an installation, and a PLC system may also be adaptively tuned to measurements of the current local environment. Field experiments in a challenging microgrid and a 24-floor apartment building demonstrate an appropriately tailored PLC system communicating reliably in locations where conventional PLC fails.
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