Civil Engineering Reference
In-Depth Information
Fig. 5.8
Hierarchical thermal comfort control system architecture
5.3.1.1 Optimisation Layer (Upper Layer)
The reference governor has been defined according to the optimisation problem
described by Eq.
5.17
. Notice that two different alternatives for the cost function
were proposed such as described below by Eqs.
5.18
and
5.19
. The optimisation
problem is considered within the MPC framework, and thus following the receding
horizon control idea (Camacho and Bordons
2004
).
w
T
=
min
w
T
J
k
{
1
,
2
}
(5.17)
where:
N
N
u
2
2
J
k
1
=
1
ˆ
y
PMV
(
k
+
j
|
k
)
+
ˉ
1
w
T
(
k
+
j
−
1
)
(5.18)
j
=
j
=
N
N
u
2
2
J
k
2
=
1
ˆ
y
PMV
(
k
+
j
|
k
)
+
ˉ
1
u
(
k
+
j
−
1
)
(5.19)
j
=
j
=
