With the increased number of solar installations, importance of system monitoring and safety rises. In this trend, wired communications play a key role. Safety standards like SunSpec® Rapid Shutdown (RSD) which support NEC 2014, NEC2017 and UL1741 module-level rapid shutdown are built on wired communication interface.
Figure 1 shows typical power line communication options implemented in different solar installations. These installations can be divided into communication on DC lines (red) and communication on AC lines (blue).
There are different modulation schemes used in power line communication. In narrowband application On-Off-Keying (OOK), Frequency-Shift-Keying (FSK) and Orthogonal Frequency Division Multiplexing (OFDM) are the most common modulations, while in broadband PLC mainly OFDM is used.
Learn how solar powered emergency communication gear keeps you connected during power outages or off grid. Explore radios, two-way devices, and satellite tools powered by the sun.
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The sources of energy supply for telecommunication stations are territorially distributed facilities with a multi-level management hierarchy and a large number of structural units. Monitoring them is one of
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The difference is mainly on how the data-signal is coupled into a power line at a transmitter and how the signal is extracted at the receiver side. Another option to distinguish is communication from solar
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