Abstract
The network structure of the smart substation in common use was introduced, and the technical problems of the shared-network of sampled measured value (SMV) and generic object oriented substation event (GOOSE) were analyzed, such as the processing ability of network device and the intelligent device, the data real-time property and the network reliability, the effects to the substation in the condition of network fault, etc. On this basis, the feasibility of the shared-network of SMV and GOOSE was discussed, the implement scheme was presented, and eventually the solution of the shared-network of SMV and GOOSE was put forward, which based on the applications of the message priority control, restricting the switch number, virtual local area network (VLAN) and GARP multicast registration protocol (GMRP) classification flow control, flow rate limiting, etc. In the test-bed, the cases of shared-network and separate-network of SMV and GOOSE were compared and analyzed, and the result was valuable for reference.
Highlights
The promulgation and promotion of IEC 61850 standards has laid a foundation for the development of smartCrossCheck date: 11 September 2014The shared-network of sampled measured value (SMV) and generic object oriented substation event (GOOSE) has a big network load [7], so Gigabit LAN may be adopted
Separating manufacturing message specification (MMS) network from process level network, and separating SMV network from GOOSE network may ensure that SMV network and GOOSE network are free of interaction and the interference of MMS network, reduce data flow, relieve the load of switches, and raise the information transmission efficiency; when one of the networks is in fault, it can reduce the fault scope and raise the dependability, and this is the main reason for separation of MMS network and process level network at present
Process level messages may be isolated in one bay through virtual local area network (VLAN), static multicast management or GARP multicast registration protocol (GMRP), in order to control the flow of process level data
Summary
The shared-network of SMV and GOOSE has a big network load [7], so Gigabit LAN may be adopted. Considering network redundancy mechanism, priority division, network flow, fault recovery, processing capacity of CPU. Network card of devices on bay level and process level, and application demand, the shared-network scheme of SMV and GOOSE is researched in this paper
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