Energy consumption modelling - ADU-RES

production varies according to the solar radiation data. The annual water production is logged and used to calculate annual
average specific energies throughout the system.
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1
Vdc
Inverter
Vdc
Iac
pf
Idc
Vac
f
1
Idc
AC Bus
I1
pf 1
V
f
I2
pf 2
V
f
I
pf
V
f
Motor P
T
V
f
T
V
f
n
I
pf
Motor C
n
I
pf
n
Q
nM
TP
Centrifugal Pump
T
P
Belt
TM
nP
Well Pipe
Q
Pb
Pt
Q
Plunger Pump
n
T
Qf, m3/h
Pc, bar
Cf
RO Membranes
Tf , degC
Figure 6 – Contents of the “Inverter and RO Rig” block shown in Figure 5
Po
Pi
Q
2
Cf
3
Tf
Pf , bar
Qc, mg/L
Cp, mg/L
Qp, m3/h
3
Cp
2
Qp
4.4
Needle Valve
The individual component blocks shown in Figure 6 correspond to the hardware components shown earlier in Figure 4. The
arrowed lines connecting the component blocks in Figure 6 represent the flows, pressures, voltages, currents, etc. in the respective
pipes and wires of the real system. The arrows indicate the direction of the data flow, not the actual directions of water or current
flow.
Notice that in many cases the arrowed lines carry the data backwards and thus form “algebraic loops”. This is a natural
consequence of a physically interconnected system. Matlab-Simulink uses an iterative solver to perform such calculations.
ADU–RES WP6 Deliverable 6.1 Page 22 of 69
App, %
Q
P