Transcript Final
Team 4 Premium Power Service Sponsored by: Detroit Edison Energy Industry Liaison: Allen Andershack Faculty Liaison: Dr. David Stone Members of Team 4: Tom Hemmila Joe Mooren Deanna Rahko John Sidebotham Michael Skowronek Industrial Substation 40kV Bus Input Waveform 40kV Bus 40kV/13.2kV 40kV/13.2kV Custom Power Device NC • 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 NO Output To Customer Dynamic Voltage Restorer Q3 Distribution Bus VG IB= IG Filter Q1 Load Bus • 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 Q2 T1 TL Control VB VL DVR Charger SMES Superconducting Magnetic Energy 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 TRANSFER SWITCH • 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 FLYWHEEL •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 Industrial Substation Modeled In ATPDraw 40kV #1 40kV #2 To Customer Load Custom Power Device To Customer Load Modeling a Substation in ATPDraw 4 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 Arose ATPDraw Does Not Contain Circuit Breaker Models ATPDraw Does Not Contain Automatic Throwover Switches ATPDraw Does Not Contain Custom Power Devices STS & Kinetic Battery Models source2 source1 thyrist thyrist NODE2 NODE1 Maint. NODE3 Main NODE4 Static Transfer Switch Maint. POS Kinetic Battery ATP 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. SPRING PLANS • Complete, integrate, and test ATP models • Evaluate with different load configurations • Make recommendations based on simulations and results attained • Write final report • Graduate