Dual-network-redundancy device hardware architecture in transformer substation and implementation method

Abstract

The invention belongs to the field of internal communication of automatic transformer substation systems for power systems, and specifically discloses dual-network-redundancy device hardware architecture in a transformer substation and an implementation method. The dual-network-redundancy device hardware architecture and the implementation method are characterized in that an MAC (Media Access Control) Ethernet communication module, a PRP&HSR (Parallel Redundancy Protocol and High-availability Seamless Redundancy) module, a packet filter module, a multipath packet transmission control module and a 1588 clock synchronization module are designed on an FPGA (Field Programmable Gate Array) to synergistically finish receiving and transmission of Ethernet packets, IEC61588 accurate network clock synchronization, dual-network-redundancy processing, network storm suppression and packet classification and transmission functions in an automatic transformer substation system. Through adoption of the dual-network-redundancy device hardware architecture and the implementation method, the operation processing demand on a CPU (Central Processing Unit) is lowered greatly, the protection cost on a measurement and control device of the transformer substation is reduced, and the running reliability of the transformer substation system is improved.

Description

[0001] technical field [0002] The invention belongs to the field of internal communication of electric power system automation substation system, and is a device hardware framework and implementation method of dual-network redundancy in a substation based on FPGA technology developed to improve the communication reliability of secondary equipment in a substation automation system. [0003] Background technique [0004] At present, most of the communication between the secondary equipment (protection, measurement and control devices) of the power system automation substation system has adopted industrial Ethernet technology. In order to ensure the reliability of communication, the substation automation system with a voltage level of 220KV and above is configured as Dual network, the communication data in the dual network is exactly the same, after the protection, measurement and control device receives the dual network data, the device CPU system (or DSP) will screen and pr...

AI Technical Summary

Problems solved by technology

In the current smart grid application mode, the data traffic on the network is getting larger and larger, so the computing and processing capability of the device CPU is required to be higher and higher, and the selection of a CPU with high computing and processing capability will greatly increase the cost of the device and increase the cost of the device. The power consumption of the whole device reduces the reliability of the device operation

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