EPS/Fault Management Software Jimmy Nguyen Electrical Power Subsystem Member 1.

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Presentation transcript:

EPS/Fault Management Software Jimmy Nguyen Electrical Power Subsystem Member 1

Overview Hardware implemented protection Fault software Photodiode angle conversion 2 SDS-1 Simulation

Hardware Implemented Protection ClydeSpace – EPS Board, Solar Panels, Battery Over-Current Bus Protection – Solid state switches Battery Under-Voltage – To prevent over discharge – Uses comparator circuit w/ hysteresis. EPS Board (Courtesy of ClydeSpace ) 3

Hardware Implemented Protection Battery Over-Current -Polyswitch protection - Shuts down supply busses Stand-Alone Battery (Courtesy of ClydeSpace) 4

Power Modes Full Load Normal Operation A Normal Operation B Normal Operation C Normal Operation D Standby Mode Load Shed Mode 5 SDS-1 Simulation

Major Problem How do we communicate if all components are off? - Hardware never powers off forever 6 Chrome error icon

7 EPS Fault Management Flow Diagram

Photodiode Angle conversion using PIC microcontroller Testing stages 8 Photodiode Demo Setup

Questions or Comments? Name:Jimmy Nguyen Website: 9