Since Loop 7 has the capacity to serve all load demands with a controllable
power plant, power flow calculation of this loop is shown in island mode.
46
Three-phase
voltages
Three-phase
power flows

47

Day-Ahead Optimal Scheduling
•
This figure shows the data flow for the day-ahead optimal scheduling in
ICMMC.
•
The day-ahead market clearing price from ComEd would be used as the
forecasted electricity price and the forecasted fuel price would be applied.
•
The solar unit generation would be calculated based on the seasonal
generation profile combing with the sunrise/sunset time and forecasted
cloudy information.
48
UC/ED (day-ahead)
Forecasted load
based on historical
load data
Forecasted
fuel
price in market
Day-ahead
Electricity Price
from ISO
Solar Generation calculated
based on seasonal profile,
sunrise, sunset and
cloudy
information
Microgrid
Component Status
(In Service or not)
Demand Response
Signal
Hourly Grid
Dispatch and
Cost
Hourly Co-gen
Dispatch and
Cost
Hourly Battery
Charging/
Discharging Status
Hourly Load
Curtailment
Hourly Voltages
and Power Flow
•
The load would be predicted
using linear regression method
based on historical load data.
•
With all the forecasted
information and forecasted
microgrid component status, the
set points for controllable
generation resources (co-gen and
battery) would be calculated as
reference set points.

Real-Time Optimal Scheduling
•
This figure shows the data flow for the real-time UC/ED in ICMMC.
•
The available generation capacity would be calculated based on the current
system operating point (co-gen and battery).
49
UC/ED (real-time)
Last measurement
of loads
Forecasted
fuel
price in market
Real-Time
Electricity Price
from ISO
Last measurement
of Solar
Generation
Microgrid
Component Status
from OSISoft PI
System
Current microgrid
operating point
Grid Dispatch and
Cost
Co-gen Setpoint
and Cost
Battery Charging/
Discharging
Setpoint
Load
Curtailment/
Switch Setpoint
Voltages and
Power Flow
•
The objective function


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- Spring '14
- MohammadShahidehpour
- Icm, Electric power transmission, Electricity distribution, Distributed generation