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Uninterruptable Power Supply

Uninterruptable Power Supply. Team: Jakob Yonan Jaafar Zahed Advisor: Taehyung Kim. UPS – Objective . Supply power when the utility fails Maintains constant voltage Surge Sag Reduce noise. Over/Under-Voltage, Power Loss. 120VAC 60 Hz. Monitor. DCAC. DCDC. Battery. ACDC.

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Uninterruptable Power Supply

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  1. Uninterruptable Power Supply Team: JakobYonanJaafarZahed Advisor: Taehyung Kim

  2. UPS – Objective • Supply power when the utility fails • Maintains constant voltage • Surge • Sag • Reduce noise

  3. Over/Under-Voltage, Power Loss 120VAC 60 Hz Monitor DCAC DCDC Battery ACDC Monitor

  4. AC-DC Inverter

  5. AC-DC Inverter PSIM Output 13 12 8 4 0.5 1.5 Time (s)

  6. Boost DC-DC converter • Used to maintain a constant output voltage when the battery voltage sags. • Main components : (IGBT) insulated gate transistor, inductor , diode and a capacitor • Vout=Vin*(Ton+Toff)/Toff • Iout=Iin*(Vin/Vout)

  7. DC-DC Boost converter PSIM 20- 17- 0.5 0.2 0.1 0.3 0.4 Time (s)

  8. DC – AC Inverter Positive Bus Line LOAD NegativeBus Line PWM

  9. DC-AC Inverter • High Frequency Triangle Waveform • Sine Waveform

  10. DC-AC Inverter PSIM Output 20 16.96 VAC 17 10 -10 -17 -20 0.02 0.04 0.06 0.08 Time (s)

  11. PCB Design • SMD Components • PCB (Local Dearborn Company or PCB Express) • NI – Ultiboard or Eagle • EMC • Provide Shielding to noise

  12. Timeline • Simulation • AC-DC - Completed • DC-DC – Completed • DC-AC - Completed • Complete Simulation Pending • Parts Order 2/3/2011 • Expected Parts Arrival 2/17/2011 • Completed AC-DC -3/1/2011- 3/31/2011 • Completed DC-DC -3/1/2011- 3/31/2011 • Completed DC-AC -3/1/2011- 3/31/2011 • PCB Design 4/1/2011 – 4/11/2011 • Final UPS Packaging 4/28/2011

  13. Questions

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