Ratan Das, Ph.D., P.Eng.
|Centralized Protection and Control (CPC) System within a Substation|
CPC is Fifth gen protection and control system enhancing digital substation. CPC system is comprised of high-performance computing platform(s) capable of providing protection, control, monitoring, communication and asset management functions by collecting the data those functions require using high-speed, time synchronized measurements within a substation.
As shown in block 5, IMU sends voltage and current sample values to CPC using 61850-9-2. Process unit status monitoring and its control is also done through IMU.
IEEE Power System Relaying and Control (PSRC) WG K15 documents on CPC: