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

AC Active LoadGroup Members:Alex NesticoMark FraysierRichard Jennings

Problem Statement Design a testing equipment device for

3-phase power systems Tests how a power device will operate

under different load conditions

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

Background Power system device are expensive Testing of power system devices help:

Ensure reliability Increase lifespan

Overall Architecture

AC Metering

AC Switch

Power Dump

DC Metering

DC Switch

Auxiliary Power

Backup Battery

Power Supply

Zero Crossing Detector

Display

Keypad

Memory

PC Interface

MCU

Major Technologies Dynamometer

A mechanical approach E&M Power’s Active Load Emulator

Similar approach Active Load

Similar, but different goal

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

AC Active Load’s Innovative Approach Bi-directional converter

AC-DC and vice-versa DC chopper load Control system for switches

Digital

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

Uncertainties PCB outcome Resources

Expected Outcomes Successfully build the AC Active Load Be able to simulate on generator in

Power Lab No intentions to mass market this

device

Project Plan

Component Procurement Plan Purchase parts from Digi-Key, Texas

Instruments, and E-Teknet

Estimated Parts ListPart # # Used Price for 1 of each ($) Price*#

Piccolo Experimenter Kit TMDSDOCK28035 1 130 130Heat Sink (DC Chopper) 530002B02500G 1 1.71 1.71Heat Sinks (Converter) RA-T2X-51E-ND 6 2.55 15.3Switch (DC Chopper) AOT12N60 1 1.52 1.52Switches (Converter) IXFH30N50Q3 6 10.33 61.98Input Filter Inductor Core T650-26 3 30 90Input Filter Capacitor B32794D3126K 3 6.02 18.06AC Metering (Input Filter) CS5463 3 1.97 5.91Display Module NHD0420D3ZNSWBBW 1 18 18Drivers (all MOSFETs) FAN73711MXCT-ND 7 1.29 9.03PCB 1 1 100 100PCB 2 1 100 100PCB 3 1 100 100PCB 4 1 100 100Power Dump TMC50-.25-ND 80 3.66 292.8Heat Sinks (Power Dump) 091 Feet of Copper Wire (10 ga) 3 28.21 84.63Minor Component Estimation 1 1200 1200

GRAND TOTAL 2328.94

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