【摘 要】
：
随着智能变电站的应用和推广,变电站的二次电压/电流回路发生了改变.电子式互感器的实现、远端电气单元的二次输出并没有统一的规定,各厂家使用的原理、介质系数、二次输出光信号含义也都不尽相同,电子式互感器输出的光信号需要同步、系数转换等处理后才能输出统一的数据格式供变电站二次设备使用.因此,IEC标准定义了电子式互感器接口的重要组成部分——合并单元(Merging Unit,MU),并严格规范了它与保护
【机 构】
：
深圳供电规划设计院有限公司,深圳南山区粤海路7号变电室 518000
【出 处】
：
中国电力规划设计协会送变电设计技术交流会暨送变电专家委员会2017年工作会议
论文部分内容阅读
随着智能变电站的应用和推广,变电站的二次电压/电流回路发生了改变.电子式互感器的实现、远端电气单元的二次输出并没有统一的规定,各厂家使用的原理、介质系数、二次输出光信号含义也都不尽相同,电子式互感器输出的光信号需要同步、系数转换等处理后才能输出统一的数据格式供变电站二次设备使用.因此,IEC标准定义了电子式互感器接口的重要组成部分——合并单元(Merging Unit,MU),并严格规范了它与保护、测控等二次设备之间的接口方式,合并单元最开始就是针对这种数字化输出的电子式互感器而定义的.传统变电站中保护、测控等装置所需的电气量都通过本身的采样模块实现,而智能变电站通过合并单元集中完成传统变电站中保护、测控等装置的电气量采集,并通过标准通信接口发送给保护、测控、录波器等装置,实现数据的共享和数据来源的统一.本文分析了合并单元架构与接口,功能及原理,技术要求,并提出了主变间隔MU及智能终端的配置方案.
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