Functional Requirements for an Intelligent RPC
Brendan Aucoin, Robert Page Heller · 2005
An intelligent remote power controller (RPC) based on microcomputer technology can implement advanced functions for the accurate and secure detection of all types of faults on a spaceborne electrical distribution system. The intelligent RPC will implement conventional protection functions such as overcurrent, under voltage, and ground fault protection. Additionally, advanced functions for the detection of soft faults, which cannot presently be detected, can also be implemented. Adaptive overcurrent protection changes overcurrent settings based on connected load. Incipient and high impedance fault detection provides early detection of arcing conditions to prevent fires and clear and reconfigure circuits before soft faults progress to a hard fault condition. Power electronics techniques can be used to implement fault current limiting to prevent voltage dips during hard faults. These techniques will enhance the overall safety and reliability of the distribution system.