基于EtherCAT总线的微电网协调控制系统  

Micro-grid Coordinate and Control System Based on EtherCAT Bus

作　　者：李哲[1] 李文威[1] 徐石明[1] 丁孝华[1] 

机构地区：[1]中国电力科学研究院,江苏南京210003

出　　处：《仪表技术与传感器》2013年第6期79-81,共3页Instrument Technique and Sensor

基　　金：国家高技术研究发展计划(863计划)(2012AA050214)

摘　　要：针对微电网协调控制系统要求具备实时性高、信息量大的特点。如果采用传统的以太网总线作为现场总线,则会因为传统以太网实时性不高,造成远方控制策略和就地控制策略之间存在冲突的问题;如果不采用现场总线的方式,使用电缆直接将电气量连接到主控制器的方式,则存在着数字化程度低的问题。EtherCAT总线是一种实时工业以太网,采用主从模式访问控制,具有传输速率快、传输数据量大的特点。通过采用EtherCAT总线作为微电网协调控制系统的现场总线,将主控制器作为EtherCAT主站,将就地终端作为EtherCAT从站。通过这种方法解决了微电网协调控制系统因采用传统以太网实时性不高的缺点,也避免了由于使用电缆直接连接而导致的数字化程度低的缺点。The micro-grid coordinate and control system requires high real-time and large volumes of information.If field bus of the system is used with the traditional Ethernet bus,it will cause the problem of conflict between the remote control strategies and local control strategy for traditional Ethernet bus has not high real-time.If the system doesn＇t use field bus,it takes the electrical quantities directly connected to the host controller by cables.Then there exists the problem of low digital level.EtherCAT bus is a real-time industrial Ethernet,it uses master and slave mode to interview control,which has fast transfer rates and large volumes of data transmission.EtherCAT bus is used as the field bus of micro-grid coordinate and control system.The host controller is acted as master station of EtherCAT.The local terminal is acted as slave station of EtherCAT.In this way,it solves the shortcoming which micro-grid coordinate and control system has not high real-time by using traditional Ethernet,and avoids the shortcoming which is low digital level for directly connected by cables.

关 键 词：微电网 EtherCAT总线 协调 控制 系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]