Control and Design of Microgrid Components - Power Systems ...

This creates advantages on both sides of the meter: the utility is guaranteed a limit on the amount
of power taken by a certain region where multiple microgrids are present, while due to this
restriction on the power usage, microgrids could enjoy lowered electricity rates during those
periods of times when the restriction applies.
A
16
DG
B
22
Static
Switch
C
DG
8 D 11
DG
DG
Grid
PCC
Sensitive
Loads
Non Sensitive
Loads
Figure 3.22 Load Tracking Configuration.
The fact that the power on the feeder needs to be regulated implies that there is a need to install
sensing equipment on that feeder to evaluate the power and feed it back to the microsource
controller. In short, this implies an increase in the component count for the sensing equipment.
The advantages that load tracking offer may be more than enough to offset the nuisance of
having to install measuring equipment directly on the feeder of the microgrid floor, rather than
having them nicely encased within the chassis of the microsource.
Figure 3.23 shows the characteristics of two units adopting the feeder power flow control. The
characteristics enforce the following relation:
i
=
o F o,
i
( F F )
ω ω − m −
Eq. 3.8
i
40