MONITORING SYSTEM AND SLAVE DEVICE FOR PHOTOVOLTAIC POWER GENERATION PLANT
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Feb 4, 2014
filing date -
Feb 6, 2013
priority date (Note) -
Abandoned
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Abstract
A monitoring system includes a slave device (4) and a master device (5). The slave device (4) superposes a current signal, which represents measurement data obtained by measuring each of one or more solar cell panels included in plural solar cell panels (P1 to P15) constituting a solar cell string (10), to a DC current path. The DC current path includes plural power lines (L1 to L14), a first trunk power line (21), and a second trunk power line (22). The master device (5) is connected onto the first trunk power line (21), second trunk power line (22), or both of the trunk power lines, and receives the measurement data from the slave device (4). Accordingly, the communication performance between the slave device and master device in, for example, a monitoring system that performs monitoring in units of a solar cell panel can be improved.
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