Intelligent power distribution network IEEE1588 timing synchronization system on basis of industrial Ethernet direct connection access rings

The present invention relates to a distribution-campus time synchronization system, and particularly to a direct connection into the Industrial Ethernet ring system intelligent synchronous distribution network IEEE1588 correction. Comprising a backbone and access layers, master gateway switch connected to the upper layer network backbone transmission accurate clock means, the master switch and the slave station gateway switch connected to form a ring structure, the access gateway switches a first layer and a second switch connected in the sub-mark station and then switches both switch to the access layer are connected to form a ring structure, the master station gateway switch, the first switch and the second pass switch is set to pass a boundary clock, the slave station and the access switches to a transparent layer switch clock, with electrical terminal means disposed to an ordinary clock. The present invention is technically simple, high temporal precision, small dependence on GPS, the degree of expansion and good cost saving, broad geographical coverage, access layer is well adapted to directly connect the ring to meet the requirements of the intelligent power distribution network time synchronization.