POINT-TO-POINT COMMUNICATION IN A HIGH VOLTAGE POWER TRANSMISSON SYSTEM

摘要

The invention concerns a method and first device (32) for transmitting data related to the control of a high voltage power transmission system as well as to a method and a second device (50) for receiving data related to such control. The first device provides (40) a frame of data including data symbols in a frame structure providing sections for data symbols containing measurement samples and field bus type of data, inserts (42) synchronization data into the frame in the form of control symbols distinctively separated from the data symbols and sends (44) the frame to the second device (50) in a point-to-point connection (34). The second device (50) receives (54) the frame, extracts (56) the synchronization data and processes (58) the frame after the extracting, for obtaining the data symbols. The synchronization data being inserted and extracted this way concerns synchronization of control activities performed by the second device.