中文摘要：

为了解决变电站常规状态监测设备或非变电站设备与变电站内部IEC 61850标准监测系统无法直接通信的问题,文中提出了一种Modbus到IEC 61850-8-1协议转换的设计方法。采用面向对象技术对Modbus进行了数据建模;分析了IEC 61850及制造报文规范(MMS)信息模型和服务模型,根据分层语义对等原则建立了Modbus,IEC 61850以及MMS间信息及服务模型的映射关系;基于已建立映射模型完成了Modbus与IEC 61850-8-1转换模块的设计;最后以间隔控制器为例,建立了其相应的映射模型,采用MMS-EASE LITE等相关技术实现了协议转换模块的主要功能,完成了其相电流等测量数据的读写服务,验证了上述设计方法的正确性和可行性。

英文摘要：

In order to solve the non-compatible problem between the general monitoring equipments of substation or non-substation equipments with substation internal monitoring system of IEC 61850 standard,this paper proposes a new method for the conversion module between Modbus communication protocol and IEC 61850-8-1 standard.At first,this paper analyzes the information model of IEC 61850 and of MMS;and by use of the object-oriented technology,an information model of Modbus RTU is built,which establishes the information model mapping relation among Modbus,IEC 61850 and MMS based on the principle of layered semantic correspondence;and then,based on the proposed model,a conversion module between Modbus and IEC 61850-8-1 standard is established;finally,an information model for the interval controller is built as an example. Based on the technology like MMS-EASE LITE and so on,this paper achieves the main obj ective of communication protocol conversion,and realizes the reading and writing service of measurement data such as phase current,which verifies the correctness and feasibility of the proposed method.