Simulation of OpenDSS-Matlab for Simple Power System with PV

RENEWABLE ENERGY
Name:
Professor:
Date:

TASK ONE
TASK DESCRIPTION
We are required to simulate the opendss-matlab simulation for the simple power system given in
this assignment. The first step we took was to download the load data and the PV data. These
were stored as an m-file. We then wrote a matlab code that accept this data and simulates the
data in opendss before plotting the three phase voltage and tap position with time. The matlab
code file is attached to this assignment.
RESULTS:
0 500 1000 1500
time
0.935
0.94
0.945
0.95
0.955
0.96
0.965
0.97
0.975
SVR tap operation profile
SVR tap operation profile with time
Figure 1: SVR tap operation profile with PV not connected to the power system
max_voltage =

0.9576
min_voltage =
0.9000
0 500 1000 1500
time
0.9
0.91
0.92
0.93
0.94
0.95
0.96
SVR tap operation profile
SVR tap operation profile with time
Figure 2: Voltage profile at node 4 when PV is not connected to the power system

0 500 1000 1500
Time
1200
1400
1600
1800
2000
2200
2400
2600
2800
Active load demand
Active load demand against time
Figure 3:Load demand with time
DISCUSSION:
From the plots it can be observed that the voltage profile and SVR tap operation profile is
constant throughout. This is because the PV is not connected to the power system hence
maintaining the profiles will not require tap position changing.
TASK TWO
In this task we are required to repeat the steps in task one with PV added to the power system.
The PV supplies active power only. We repeated the steps in task one. The output three phase
voltages were then plotted against time. We plotted the transformer tap position also with time.
RESULTS: