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介绍了现有数字化变电站的2种组网模式。分析了IEC 61850-9-1的采样值点对点传输方案以及IEC61850-9-2的采样值网络传输方案;提出了一种应用VLAN技术的IEC 61850-9-2采样值网络和GOOSE网络共网传输的方案,从技术,经济角度分析了其可行性;并对过程层的采样值,GOOSE数据报文进行了流量分析。结合某数字化变电站试点工程,采用OPNET仿真软件对共网传输中IED设备的端到端延时进行了仿真分析,结果表明采用VLAN技术的共网传输方案可行。
The two networking modes of the existing digital substation are introduced. The IEC 61850-9-1 sample point-to-point transmission scheme and the IEC61850-9-2 sample network transmission scheme are analyzed. An IEC 61850-9-2 sample value network using VLAN technology and GOOSE network are proposed Of the program, from a technical and economic point of view of its feasibility; and the process of sampling values, GOOSE data packets for traffic analysis. Combined with the pilot project of a digital substation, the OPNET simulation software was used to simulate the end-to-end delay of IED equipment in the transmission of common network. The results show that the proposed scheme is feasible.