Research On Communication Services For Power Telecontrol Based On OPC

Traditional power telecontrol system is unable to meet the demands of real- time data exchange in the speed of data transmission and flexibility, Therefor the IEC constituted the newest communication standard—IEC 61850. However, the polularization of new standard still need a long time, the currently status is many standards coexist. Aim at this thing, the paper adopts the standardized technique in industry control—OPC, conducts an in-depth study and exploration on transmission mode of power telecontrol information.The paper analyses the OPC and its core technique COM, emphasis on the architecture and information model of IEC 61850 and substation configuration language. On the basis of above, designs an OPC based communication service module for telecontrol, provides a uniform interface to data access from substation to dispatching center, aims at IEC 61850 data model, it gives an data mapping method.