1. AC Active Load Group Members: Alex Nestico Mark Fraysier Richard Jennings

2. Problem Statement  Design a testing equipment device for 3- phase power systems  Tests how a power device will operate under different load conditions

3. Features  Ratings: 208 V, 6.1 A, 2200 VA, 2.2 kW  Human manual and computer interface  Pre-set load simulations  Programmable load simulations  Portable

4. Background  Power system device are expensive  Testing of power system devices help:  Ensure reliability  Increase lifespan

5. Overall Architecture

6. AC Metering

7. AC Switch

8. Power Dump

9. DC Metering

10. DC Switch

11. Auxiliary Power

12. Backup Battery

13. Power Supply

14. Zero Crossing Detector

15. Display

16. Keypad

17. Memory

18. PC Interface

19. MCU

20. Major Technologies  Dynamometer  A mechanical approach  E&M Power’s Active Load Emulator  Similar approach  Active Load  Similar, but different goal

21. Problems with Pre-existing Technologies  Dynamometer  Very large  Expensive  E&M Power’s Active Load Emulator  Generators only  Active Load  Only tests DC powered equipment

22. AC Active Load’s Innovative Approach  Bi-directional converter  AC-DC and vice-versa  DC chopper load  Control system for switches  Digital

23. Challenges  Programming in C  Using Multi-Sim software for PCB layout  Budget

24. Uncertainties  PCB outcome  Resources

25. Expected Outcomes  Successfully build the AC Active Load  Be able to simulate on generator in Power Lab  No intentions to mass market this device

26. Project Plan

27. Component Procurement Plan  Purchase parts from Digi-Key, Texas Instruments, and E-Teknet

28. Estimated Parts List

29. Conclusion  We are ready to build a 3-phase power system testing equipment device  However, we far exceed our budget  We must lower costs  Reduce power rating  1-phase only