Abstract

In the era of the 4th industrial revolution, power automation with Smart Grid is becoming increasingly important. The reliability of the power automation system that controls and monitors the power systems has become a major performance indicator. To achieve optimum performance, it is essential to ensure the reliability of the communication network connecting each remote device as well as the main systems. Short range communication methods, such as DWB, using ISM band frequency(5 GHz) have been developed and used for the power automation system in areas without an optical communication network. However, difficulties are encountered during the operation of power automation systems due to lack of reliability. In order to resolve these problems, we developed the advanced wireless bridge(AWB) that implemented frequency diversity with 2.5 GHz(Zigbee) and 900 MHz(Wi-SUN). The AWB improved the communication success rate to 20 % compared to the original DWB method.

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