Transcript ABT Based Boundary Metering

ABT Based Boundary Metering
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ABT Based Boundary Metering
ABT
+ Boundary Metering
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ABT Based Boundary Metering
ABT
= Availability Based Tariff
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ABT Based Boundary Metering
And
Boundary Metering Means ……….?
#$#% O0oophs
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ABT Based Boundary Metering
So what is Boundary Metering?
How it is different from ordinary metering?
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ABT Based Boundary Metering
To Understand Boundary Metering….
First understand what is meant by
Metering of Electrical Energy?
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ABT Based Boundary Metering
Metering means, measurement of
consumption of a consumer
And it means measurement of the
consumption at a point of supply to
that consumer
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ABT Based Boundary Metering
Meter A
Consumer
Supply Line
Consumption = Energy Recorded By the Meter A
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ABT Based Boundary Metering
Now Suppose………
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ABT Based Boundary Metering
Meter D
Meter C
Meter A
Consumer
Meter B
Consumption = Sum of Energy Recorded By Meters A, B, C, D
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ABT Based Boundary Metering
Now let us further Suppose………
There is a Customer instead of
Consumer of energy
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ABT Based Boundary Metering
Consumer V/s Customer
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ABT Based Boundary Metering
Consumer only consumes
&
Customer consumes as well as supply
back
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ABT Based Boundary Metering
Customers need Bi-Directional Meters
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ABT Based Boundary Metering
Customer with Single Supply line
needs Single Bi-Directional Meter
Energy Consumption will be Net with
Signs (+ve or –ve)
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ABT Based Boundary Metering
Sign Convention
Net Energy Export = +ve
& Net Energy Import = -ve
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ABT Based Boundary Metering
So in case of Customer with Multiple
Supply
Interface
Lines…………….
Points……….
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ABT Based Boundary Metering
Meter D
Meter C
Meter A
Consumer
Meter B
Consumption
Energy Transaction
= Vector
= Net
SumEnergy
of Energy
Recorded
Recorded
By Meters
By Meters
A, B,A,C,B,DC, D
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ABT Based Boundary Metering
Or
So
Energy Transaction
Boundary
Metering Means
with Other
Net Energy
Power
Transaction
Utilities
with a Customer
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ABT Based Boundary Metering
Now We Understood What is Boundary
Metering
Boundary Metering Means Measurement of
Energy Transaction Across a Region
Region in our case Normally means Another
Power Utility or OA Customers
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ABT Based Boundary Metering
Any Questions Please?
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ABT Based Boundary Metering
Now let us come to what is ABT?
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ABT Based Boundary Metering
ABT = Availability Based Tariff
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ABT Based Boundary Metering
Now next obvious question is ………….?
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ABT Based Boundary Metering
What is Availability Based Tariff?
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ABT Based Boundary Metering
Understanding Availability Based Tariff
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ABT Based Boundary Metering
Purpose of ABT is to Bring in Grid
Discipline
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ABT Based Boundary Metering
@ 50 Hz => 300 RPM
0m
100 m
@ 49 Hz => 294 RPM
0m
98 m
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ABT Based Boundary Metering
50.00 Hz
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ABT Based Boundary Metering
Supply
Demand
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ABT Based Boundary Metering
Grid Security
Grid Reliability
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ABT Based Boundary Metering
Tariff System Prevalent previously
Bill of a Utility
Energy Drawl
Bill of a Generator
Energy Produced
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ABT Based Boundary Metering
So Grid Frequency Used to……….
Swing
Wildly
51.00
50.30
49.30
48.50
49.00
49.50
49.80
50.00
Hz
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ABT Based Boundary Metering
Tariff System Prevalent previously
No Incentives
No Punishment
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ABT Based Boundary Metering
ABT = Grid Discipline
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ABT Based Boundary Metering
Supply
Demand
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ABT Based Boundary Metering
Many other System for the purpose…
UFRs
SCADA/ EMS
Free Governor Operation
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ABT Based Boundary Metering
But Constraints
Technical
Political
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ABT Based Boundary Metering
Pseudo Balance
ABT is an attempt to bring in
some sort of balance between
Generation & Consumption
Using Money Power
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ABT Based Boundary Metering
So UI ……..
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ABT Based Boundary Metering
Unscheduled Interchange
 UI for generating station is equal to its
total actual generation minus its
scheduled generation.
 UI for distribution utility is equal to its
total actual drawl minus its total
scheduled drawl.
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ABT Based Boundary Metering
If Grid Freq is more than 50Hz then
Overdrawing Utility will get energy at less
rate and if it is more than 50.2 then it is
free.
If Grid frequency is less than 49.2 Hz then
the overdrawing utility has to pay more &
more for UI.
Reverse conditions are applicable for
Generating Stations.
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ABT Based Boundary Metering
Since the Original ABT Scheme there have
been many Variations to bring in strict
discipline and to stop profiteering by
energy surplus utilities.
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ABT Based Boundary Metering
ABT
≡
Grid Discipline
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ABT Based Boundary Metering
So Friends….
This was a Short Primer
On ABT
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ABT Based Boundary Metering
Now Back to ….
ABT Based Boundary
Metering
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ABT Based Boundary Metering
So ABT Based Boundary Metering
means Boundary Metering based
upon ABT type meters
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ABT Based Boundary Metering
ABT meters record Net Energy
Transaction at a Interface point
between the Power Utilities for each
of 96 Blocks of 15 Minutes every day
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ABT Based Boundary Metering
ABT Meters are also called SEMs
Special Energy Meters
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ABT Based Boundary Metering
In Punjab the Intra State transactions
are to be metered based upon ABT
Scheme in compliance to Punjab SGC
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ABT Based Boundary Metering
For Which SO&C Organization in PSTCL
is going to implement AMR system
based upon these meters
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ABT Based Boundary Metering
Any Questions?
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