RF Electronics Appendix: Producing Graphs using AWR DE Page 390
2022, C. J. Kikkert, James Cook University, ISBN 978-0-6486803-9-0.
This plot shows that when adding large random variations in mains amplitude and
frequency the total vector error (TVE) of the algorithm is much less than the allowable
1% [3].
Figure A2.2 shows a plot of simulated ROCOF measurements and the corresponding
errors, when using IIR or FIR filters. Figure A2.2 shows all the 200000 points covering
20 seconds, plotted for each of the 3 traces. By simply changing the horizontal and or
vertical axis, different parts of the plot can be enlarged. Figure A2.3 shows the same plot
with simply the horizontal axis changed to cover 4 to 5 seconds and contains 10000 points
for each of the 3 traces and is the same as figure 12 in [2].
Figure A2.2. Plot of ROCOF with 200000 points on each trace.
Figure A2.3. Close-up of Figure A2.2 with 10000 points on each trace.
RF Electronics: Design and Simulation
390 www.cadence.com/go/awr
