智能变电站中数字化保护整组试验方法的研究

Research on the method of digital protection unit testing in the intelligent substation

通过对智能变电站中数字化保护整组试验的测试需求分析,提出了"虚拟的电压合并单元"的方法,并结合现有的继电保护测试装置研发技术,实现了数字量和模拟量的同步混合输出,解决了从合并单元前加量进行继电保护整组试验的测试问题。

This paper presented a method of ＂ virtual voltage merging unit ＂ based on the analysis of digital protection testing requirement in intelligent substation,combined with the technology of existing relay protection testing device development,the synchronous output of digital signals and analog signals was realized to solve the problem of relay protection test.