Team 4Team 4

Premium Power ServicePremium Power Service

Sponsored by: Detroit Edison EnergyIndustry Liaison: Allen AndershackFaculty Liaison: Dr. David StoneMembers of Team 4:

Tom HemmilaJoe MoorenDeanna RahkoJohn SidebothamMichael Skowronek

40kV /13 .2kV 40kV /13 .2kV

N ON C

40kV Bus

Industria l Substation

40kV Bus

C ustom PowerD evice

Input Waveform

Output To Customer

• A voltage sag/swell in the utility waveform is seen by the customer without a Custom Power Device in the substation

• Sags and swells can have severe affects on the Customer Load

• Implementing the Customer Power Devices into the substations will correct the waveform

DynamicDynamicVoltage Voltage RestorerRestorer

• Power electronic converter injects appropriate voltage

• Acts as a buffer, used for injecting or absorbing

• Can Compensate a 50% three phase voltage dip for up to 50 cycles

• Cover a power range from 3MVA up to 50 MVA

Filter

Charger

Q1 Q2

Q3

T1 TL

Control

VG

VB VL

Dis

trib

utio

nB

us Loa

dB

us

DVR

IB= IG

SMESSMESSuperconducting Magnetic Superconducting Magnetic

Energy StorageEnergy Storage

• Instantaneous discharge

• Unlimited duty cycles

• Response time of .5 ms

• Ride through a 2.5 sec sag

• 100% recharge in 120 sec

• Very mobile

STATIC STATIC TRANSFER TRANSFER

SWITCHSWITCH

• Protects against sags and interuptions

• Seamless transition between switches

• For facilities where load is power sensitive

• For facilities with loads above 3MW

• Cost effective for both the utility and the customer

FLYWHEELFLYWHEEL

•Deliver higher power per weight and size•Cycles many thousands of times•Have a precisely known state of charge•Have a long life•Operate without using potentially hazardous materials

40kV #1 40kV #2

Industrial Substation Modeled In ATPDrawIndustrial Substation Modeled In ATPDraw

Custom Power Device

To Customer Load

To Customer Load

Modeling a Substation in ATPDrawModeling a Substation in ATPDraw

4 Substations To Be Modeled4 Substations To Be Modeled 1 Bus Fed - 2 Transformer 1 Best Feed - 2 Transformer 1 Typical Line Fed - 2 Transformer 1 Typical Line Fed - 2 Transformers Operating in Parallel

Problems That AroseProblems That Arose ATPDraw Does Not Contain Circuit Breaker Models ATPDraw Does Not Contain Automatic Throwover Switches ATPDraw Does Not Contain Custom Power Devices

Maint.

NODE1

Main

NODE4

Maint.

NODE3

source1source2

thyrist

NODE2

thyrist

STS & Kinetic Battery ModelsSTS & Kinetic Battery Models

POS

Static Transfer Switch Kinetic Battery

ATP Fortran Modeling TechniquesATP Fortran Modeling Techniques

• Basic Fortran can be used to model custom power devices in ATP

• Fortran modeling structure includes: Data Points, Variables, Initializing, and Executing.

• Integrating the code into ATP’s defined structure by compiling a basic situation for the Custom Power Device.

• Complete, integrate, and test ATP models

• Evaluate with different load configurations

• Make recommendations based on simulations and results attained

• Write final report

• Graduate

SPRING PLANSSPRING PLANS