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EPS/Fault Management Software

EPS/Fault Management Software. Jimmy Nguyen Electrical Power Subsystem Member. Overview. Hardware implemented p rotection Fault s oftware Photodiode a ngle c onversion. SDS-1 Simulation. Hardware Implemented Protection. ClydeSpace – EPS Board, Solar Panels, Battery

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EPS/Fault Management Software

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

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

  3. 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)

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

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

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

  7. EPS Fault Management Flow Diagram

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

  9. Questions or Comments? Name: Jimmy Nguyen Website: http://sdsl.club.asu.edu/ Email: jnguye22@asu.edu

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