Liu Yong, Yingying Chi, Zheng Zhe, Liu Rui, Cui Wenpeng, Jia Xiaoguang
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Overview of Ethernet Physical Layer Chip Technology for Internet of energy Terminal
Based on summary of the main international standards of Ethernet physical layer chip and its working principle, this paper analyzed the requirements of the Ethernet physical layer chip in different Internet of energy terminals of Smart Substation, Distribution communication, Smart power plant, such as the communication bandwidth, electromagnetic compatibility, operating temperature. Technical requirements such as time-synchronization and energy saving also are summarized. The Ethernet physical layer core supporting IEEE1588 timestamp function can improve the sampling synchronization accuracy, and the physical layer chip supporting IEEE802.3az high efficiency and energy saving Ethernet standard can significantly reduce the energy consumption and cost of the device for power distribution devices powered by off-line power supply.
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