Utility Management Software: Integrating AMR-AMI Data Into WindMil 8
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Transcript of Utility Management Software: Integrating AMR-AMI Data Into WindMil 8
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Integrating AMR-AMI Data into Win
James S Cross, PE
Planning Engineer
Homer Electric Association
Kenai, Alaska
http://www.milsoft.com/ -
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Improving Your WindMil Model w/ AM
Historically, planners and system operators have had vedata regarding the individual loads on a distribution syste
Most distribution planning models have used (still use?) billing data (energy) from a CIS system to determine the snapshot (power) for the load-flow analysis.
This methodology is known as load allocation. Load allocis as much of an art as is system protection. There are hard & fast rules . every system and every case is diffe
Given the importance of the model loading to the load-floresults, an accurate portrayal of the system loads is criticorder to get good results.
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EA Model Improvements
The use of GIS systems at utilities has led to sig
improvements in model data, and large detailedhave become prevalent.
Load modeling has not seen the significant data
improvements that the system (impedance) mod
seen. End-of-line load data is still challenging, especia
time data.
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AMR/AMI Enters the Utility World
Utilities now have the ability to obtain more data
end-of-line loads with the implementation of AMsystems.
Two-way AMR/AMI systems allow for even mor
information flow, as some meters can be built or
programmed to detect more than just kWh usag
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What can AMR/AMI do for me?
In addition to reading kWh:
Many AMR meters capture blinks or momentary outage Voltage data
Ability to create a true monthly kWh reading
Real demand (kW) data
Equipment Information
This information can be used to make your WindM
better.
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What else can AMR/AMI do for me?
It can make a large model even larger
You are counting on another enterprise application to getyou correctly.
If the meter data moves through multiple enterprise applic
each interface is a potential source of new data errors.
It can force you to use mixed methods to populate your m
AMR to populate 2S meter loads Billing / GIS to populate other loads
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The question you MUST ask yourself
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AMI at Homer Electric
Homer Electric began implementing a Cannon Technologsystem in 2005.
We started w/ a two substation / 300 meter pilot project.
Since then weve deployed ~ 5,000 meters per year. Ninedistribution substations will read approximately 27,000 129 feeders.
All 2s meters will be changed out by years end.
We will revisit 3 metering to determine scope / costs.
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AMR WindMil Interface
WindMil can read data directly from seve
AMR systems by using a MultiSpeak inte Before using the interface, you need to c
your AMR/AMI vendor to get MultiSpeakconfiguration files for your enterprise soft
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AMR WindMil Interface
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AMR WindMil Interface
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AMR WindMil Interface
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Distribution System Phasing w/ AMI
Most power-line carrier (PLC) AMR systems interface somof communications on the primary line buses within the
substations. There is some sort of coupling onto each phase of each f
Two-way AMR allows us to send a signal down each phameters connected to that phase, and get a response backmeters that heard the signal.
If we can determine which meters are on what phase, we
electrically phase our distribution feeders. If we truly know our system phasing in our WindMil mode
can then more accurately run unbalanced analysis to modis going on with our distribution system.
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Voltage Drop Balanced Mode
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Voltage Drop Unbalanced Mode
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Distribution System Phasing w/ AMR
WindMil voltage-drop analyses can be run in un
mode. This mode will more accurately reflect ph
unbalances on your distribution system.
This affects results of:
Voltage Drop Analysis
Load Balance Activity
Set Regulation Activity
Loss Study
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Past MUC Presentations
AMR & SCADA Data in WindMil, by
Wilhite (2007)
AMR Data vs. Load Allocation, by B
Kersting (2007)
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Questions???
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