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实用新型
CN203554068U 基于工业以太网相切接入环的智能配电网IEEE1588校时同步系统 失效 - 权利终止

基于工业以太网相切接入环的智能配电网IEEE1588校时同步系统
摘要：
本实用新型涉及一种配电网校时同步系统，特别涉及一种基于工业以太网相切接入环的智能配电网IEEE1588校时同步系统。包括骨干层和接入层，骨干层关口交换机连接上级网传精确时钟装置，骨干层关口交换机和骨干层交换机通过千兆光纤接口连接形成环形结构，接入层包括一个与骨干层交换机连接的接入层关口交换机和多个接入层交换机，接入层关口交换机和接入层交换机连接形成环形结构，骨干层关口交换机、接入层关口交换机设置为边界时钟，骨干层交换机和接入层交换机设置为透明时钟，配电终端装置设置为普通时钟，本实用新型技术简单、时间精度高、对GPS依赖性小、节省费用扩展度好、覆盖地域广阔、能够满足智能配电网时间同步要求。
摘要（英）：

The utility model relates to a power distribution network timing synchronization system, and especially relates to an intelligent power distribution network IEEE 1588 timing synchronization system based on an industrial Ethernet tangency access ring; the intelligent power distribution network IEEE 1588 timing synchronization system comprises a backbone layer and an access layer; a backbone layer gateway switch is connected with an upper network transmission precision clock device; the backbone layer gateway switch and backbone layer switches are connected through a kilomega fiber interface so as to form an annular structure; the access layer comprises an access layer gateway switch connected with the backbone layer switches and a plurality of access layer access layer switches; the access layer gateway switch is connected with the access layer switches to form an annular structure; the backbone layer gateway switch and the access layer gateway switch are arranged as boundary clocks; the backbone layer switches and the access layer switches are arranged as transparent clocks; a power distribution terminal device is arranged as a normal clock. The intelligent power distribution network IEEE 1588 timing synchronization system based on an industrial Ethernet tangency access ring is simple in technology, high in time precision, small in GPS dependency, good in divergence, wide in covering area, can save cost, and can satisfy time synchronization requirements of the intelligent power distribution network.

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