本文明确了模拟量输入式合并单元的校验方法，探索出多间隔合并单元发送数据同步性的校验方法，实现了运用站内已有设备对多个合并单元相互配合时输出SV数据的同步性测试，解决了继电保护专业在智能变电站调试验收阶段多间隔合并单元校验的难题。使合并单元运行性能可控、在控，为智能变电站二次系统的可靠运行提供保证。
The paper defined the calibration method for merging unit of the smart substation with analogue input, explores the calibration method for the synchronization of sending data in multi-bay merging unit, actualizes the synchronous test of the output SV data in the application of the existing equipment in the station, and solves the problem about calibration of multi-bay merging unit in the intelligent substation commissioning and acceptance stage of relay protection. The method enables the merging unit to run the performance to control and in control, and provides guarantee for the reliable operation of the secondary system of smart substation.
