智能变电站间隔层装置互联自动测试技术研究

Research of interconnected automatic test technology for bay level devices of smart substation

智能变电站间隔层装置的测试是现场调试的重点,目前现场针对间隔层装置的调试主要侧重于单装置的测试,不能真实反映间隔层装置间的互联互通关系。重点研究了间隔层装置间的互联配合测试,根据间隔层保护、测控、合并单元、智能终端等装置的功能特点探讨总结了针对GOOSE报文联闭锁测试、纵联通道联闭锁测试、单间隔联调黑盒测试三类互联测试的原理;基于测试原理及需求,设计了专门的间隔互联智能测试仪硬件、间隔互联自动测试软件系统,并研究了对于不同测试原理的测试模板智能生成技术。通过对智能变电站间隔层装置互联自动测试技术的研究,现场调试更真实地反应了间隔层装置的互联关系,在保证效率的前提下极大地提高了调试的质量,降低了电网的安全隐患,为智能变电站二次系统的测试领域提出了新的发展方向。

The testing of bay level devices of the smart substation is one of the emphases for the on-site debugging.At present,the debugging of the interval layer devices mainly focuses on the test of single device;however,the interconnection relationship between the interval layer devices cannot be truly reflected.The interconnection test between the interval layer devices is mainly studied.According to the characteristics of the equipment including the relay protection,measurement and control devices,merging units and intelligent terminals in the bay level,three types of interconnection test principles are researched,including the interlocking test aiming at GOOSE message,longitudinal channel interlocking test as well as single interval joint black box test.Based on the test principle and requirements,the hardware and software framework of the automatic test system for the interval unit is constructed,and the test template intelligence generation technology for different test methods is designed.Through the research of the automatic test technology for the digital substation interval unit,the interconnection relationship of the field devices becomes more realistic in the on-the-spot debugging,and the debugging quality is greatly improved under the premise of ensuring the efficiency,which reduces the security risks of the power grid,and a new direction of development for sub-system test is put forward.