Network configuration method of smart substation process layer based on virtual local area network technology
A virtual local area network and smart substation technology, applied in the field of smart substation process layer network configuration, can solve the problems of reducing the investment cost of network transmission performance, large network transmission traffic of smart substations, approaching or exceeding the network record analyzer, etc., to ensure network transmission performance, investment cost avoidance, cost-increasing effect
Active Publication Date: 2016-02-10
STATE GRID HUNAN ELECTRIC POWER +2
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Problems solved by technology
[0010] The technical problem to be solved by the present invention is to provide a virtual local area network (VLAN) technology-based smart substation process layer network configuration method, without reducing network transmission performance, increasing investment costs and not losing the advantages of information sharing in the station. At the same time, it effectively solves the problem of reliable data reception when the network transmission traffic of the smart substation is large, especially when the network transmission traffic is close to or exceeds the capacity of the 100M Ethernet optical port of the network recording analyzer and fault recording device
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[0028] One embodiment of the present invention method step is as follows:
[0029] a) Determine the networking structure of each process layer switch and the IED connected to each process layer switch port. figure 1 It is a schematic diagram of the network structure of the process layer of the intelligent substation and the IED connected to the port of the switch that adopts the common network transmission of SV and GOOSE multicast messages. The process layer network adopts a typical star network structure, that is, a process layer switch is configured for each line or bus coupler interval, and the process layer switch is cascaded with the center switch through the process layer switch. The IED is connected to the optical port of each switch through the optical fiber, and receives or / and sends the SV and GOOSE messages transmitted on the network. Due to the large scale of the smart substation and many connected IEDs, two central switches are cascaded to expand the transceiver...
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The invention discloses a VLAN (virtual local area network)-based method for configuring a network of a process level in an intelligent substation. The accuracy control of a network message can be realized by a VLAN technology, the transmission performance of the network can be guaranteed, and a mass of SV (sampled value) messages, which are originally transmitted to a network record analysis meter and a fault recording device through a single optical port, are transmitted through a plurality of optical ports in reference to the IED quantity for transmitting the SV messages and according to the VLAN technology, so that the reliable receiving of data can be effectively realized when the intelligent substation is high in network transmission flow, and particularly, when the network transmission flow is approximate to or is more than the 100M Ethernet optical port capability of the fault recording device and the network record analysis meter. Compared with an existing solving method, the method disclosed by the invention gives full play to the advantages of information share in the intelligent substation, so that the great increase of investment cost and the great consumption of direct-connection optical fibers and an optical receiving module can be effectively avoided.
Description
technical field [0001] The invention relates to the technical field of substations, in particular to a process layer network configuration method of an intelligent substation based on virtual local area network technology. Background technique [0002] The smart substation is an important part of the smart grid. It is characterized by the digitalization of the whole station information, the networking of the communication platform, and the standardization of information sharing. It automatically completes basic functions such as information collection, measurement, control, protection, measurement, and monitoring. It supports advanced functions such as real-time automatic control of the power grid, intelligent adjustment, online analysis and decision-making, and collaborative interaction. With the gradual advancement of the construction of smart substations, design specifications for smart substations of various voltage levels have also been issued one after another, which h...
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IPC IPC(8): H04L12/46H02J13/00
CPCY02B70/30Y02E60/00Y04S10/16Y04S10/18Y04S20/20
Inventor 李辉刘海峰赵永生
Owner STATE GRID HUNAN ELECTRIC POWER