現有變電站改造成數字化變電站時需要增加過程層設備，其中對刀閘接口控制箱的動作可靠性提出了極高的要求。提出一種基于雙FPGA實現多重邏輯閉鎖的刀閘接口控制箱實現方案。設計了FPGA電源和時鐘實現電路，兩塊FPGA的信息交換方式以及邏輯互鎖方法。詳細描述了出口電路自檢方案。介紹FPGA配置和編程方法，給出了FPGA的時序仿真。測試了電源建立波形，實現并驗證了裝置運行的可靠性。該方案能夠有效防止誤動作發生，適用于有此需求的一般裝置。

　　Abstract:

　　Existing substation transformed into digitized substation when need to increase the process equipment， Interface control box of operating reliability high requirement put forward. Proposed based on double FPGA realizing multiple logical

　　atresic breaker interface control box scheme. Design the FPGA power and clock realization circuit， two FPGA information exchange style and the logic of the interlock method. Detailed descriptions of the export circuit self-check scheme. Introduced the FPGA collocation and programming method， given the FPGA timing simulation diagram， test the power establish waveform， realized and verified the reliable operation of device. This scheme can effectively prevent the misoperation occurs， suitable for the needs of the general device.