Study on Communication Scheme for Wide Area Measurement Systems

With the coming into use of the phasor synchronized measurement,the electric power systems home and abroad are constructing the wide area measurement systems(WAMS) in order to realize supervisory and control of power network dynamic stability in real time.The basic concept of WAMS was presented first,then based on the demands of communications in WAMS, some typical medias and transfer modes of communications are analyzed and compared. At last the communication scheme that meets the demands of real time and reliability of WAMS is proposed.