Dynamic Modelling of a Solar PV Plant on PSSE
During the steady state, in the case file or the raw file, first set the control mode of the generator to 2 (- +,
- Q limits based on WPF) under wind data. Since the solar plant got an inverter and WT4 wind plant got
inverters, both are represnted in the same manner in the steady state.
solve the system.
load your dynamic file (.dyr)
now under the wind machines, your solar plant should show up.
go to open, "add dynamic data file" and add the file i mentioned below.
Now, you should see extra modules in each category. The modules are conventionally designated as
wind modules with PVGU as the generator/converter module, PVEU as the electrical control module,
PANEL as the mechanical
module, and IRRAD as the pitch module.
The PV Generic Wind Model comprises the following modules:
• PVGU: power converter/generator module
• PVEU: electricalcontrol module
• PANEL: linearized model of a panel's output curve
• IRRAD: linearized solar irradiance profile
you can add your values to the models specified above or use the generic values mentioned down.
***********************************************************
how to create the file:
copy and past the following in note pad, rename as what_ever_the_name_you_like.dyr
5 'USRMDL' 1 'PVGU1' 101 1 0 9 3 3
0.20000E-01 0.20000E-01 0.40000 0.90000
1.1100 1.2000 2.0000 2.0000 0.20000E-01 /
5 'USRMDL' 1 'PVEU1' 102 0 4 24 10 4
5010
0.15000 18.000 5.0000 0.50000E-01 0.10000
0.0000 0.80000E-01 0.47000 -0.47000 1.1000
0.0000 0.50000 -0.50000 0.50000E-01 0.10000
0.90000 1.1000 120.00 0.50000E-01
0.50000E-01
1.7000 1.1100 1.1100 10.0/
5 'USRMDL' 1 'PANELU1' 103 0 0 5 0 1
0.16 0.38 0.59 0.85 1 /b
5 'USRMDL' 1 'IRRADU1' 104 0 1 20 0 1
1
5 1000 10 900 15 850 20 800 25 700
30 600 35 700 0 0 0 0 0 0 /
______________________________________
after you add the file, save it to your old dyr file so that next time you don't have to repeat the same.
After adding it you can copy and paste the generic values presented below to the respective models and
change the values according to your plant specifications.
PVGU1
0.02
TIQCmd, Converter time constant for IQcmd, second
0.02
0.02
TIpCmd, Converter time constant for IPcmd, second
0.02
0.4
VLVPL1 - Low Voltage power Logic (LVPL), voltage 1 (pu)
0.4
0.9
VLVPL2 - LVPL voltage 2 (pu)
0.9
1.11
GLVPL - LVPL gain
1.11
1.2
High Voltage reactive Current (HVRC) logic, voltage (pu)
1.2
2
CURHVRCR - HVRC logic, current (pu)
2
2
0.02
RIp_LVPL, Rate of active current change
2
T_LVPL, Voltage sensor for LVPL, second
0.02
Tfv - V-regulator filter
0.15
PVEU1
0.15
18
Kpv - V-regulator proportional gain
18
5
Kiv - V-regulator integrator gain
5
0.05
Kpp - T-regulator proportional gain
0.05
0.1
Kip - T-regulator integrator gain
0.1
0
Kf - Rate feedback gain
0
0.08
Tf - Rate feedback time constant
0.47
QMX - V-regulator max limit
0.47
-0.47
QMN - V-regulator min limit
-0.47
1.1
0
IPMAX - Max active current limit
TRV - V-sensor
0.08
1.1
0
0.5
dPMX - Max limit in power PI controller (pu)
0.5
-0.5
dPMN - Min limit in power PI controller (pu)
-0.5
0.05
T_POWER - Power filter time constant
0.05
0.1
KQi - MVAR/Volt gain
0.1
0.9
VMINCL
0.9
1.1
VMAXCL
1.1
120
KVi - Volt/MVAR gain
120
0.05
Tv - Lag time constant in Wind Var controller
0.05
0.05
Tp - Pelec filter in fast PF controller
0.05
1.7
ImaxTD - Converter current limit
1.7
1.11
Iphl - Hard active current limit
1.11
1.11
Iqhl - Hard reactive current limit
1.11
42
PMAX of PV plant
64
PANELU1
0.16
P200, PDCmax at 200 W/m2, pu
0.16
0.38
P400, PDCmax at 400 W/m2, pu
0.38
0.59
P600, PDCmax at 600 W/m2, pu
0.59
0.85
P800, PDCmax at 800 W/m2, pu
0.85
1
P1000, PDCmax at 1000 W/m2, pu
1
IRRADU1
5
T1, Time of the first data point, second
5
1000
I1, Irradiance at first data point, W/m2
1000
10
T2, Time of the second data point, second
10
900
I2, Irradiance at second data point, W/m2
900
15
T3, Time of the third data point, second
15
850
I3, Irradiance at third data point, W/m2
850
20
T4, Time of the fourth data point, second
20
800
I4, Irradiance at fourth data point, W/m2
800
25
T5, Time of the fifth data point, second
25
700
I5, Irradiance at fifth data point, W/m2
700
30
T6, Time of the sixth data point, second
30
600
I6, Irradiance at sixth data point, W/m2
600
35
T7, Time of the seventh data point, second
35
700
I7, Irradiance at seventh data point, W/m2
700
0
T8, Time of the eigth data point, second
0
0
I8, Irradiance at eigth data point, W/m2
0
0
T9, Time of the ninth data point, second
0
0
I9, Irradiance at ninth data point, W/m2
0
0
T10, Time of the tenth data point, second
0
0
I10, Irradiance at tenth data point, W/m2
0
reference: PSSEDocumentation.pdf
Posted 8th August 2014 by supun de silva