Table 7: Simulation results of case 2 under frequency disturbance.
| Conditions |
5% frequency disturbance |
10% frequency disturbance |
| Algorithms |
ZN |
Fuzzy PID |
PSO |
IFPSO |
ZN |
Fuzzy PID |
PSO |
IFPSO |
| Best F |
- |
- |
21.7863 |
20.4705 |
- |
- |
36.5761 |
35.1762 |
| STDEV |
- |
- |
3.1841 |
5.9931 |
- |
- |
2.4346 |
0.0016 |
| Overshoot |
0.1724 |
0.1927 |
0.0369 |
0.0066 |
0.1708 |
0.1646 |
0.0919 |
0.0195 |
|
ts(s) |
12.0100 |
8.9800 |
7.7100 |
6.6400 |
12.2400 |
12.1900 |
8.8300 |
8.0800 |
| KP |
3.7707 |
- |
3.5182 |
3.0671 |
3.8967 |
- |
3.6798 |
3.4562 |
|
KD(s) |
1.4497 |
- |
1.8396 |
1.1373 |
1.7818 |
- |
1.7644 |
1.7436 |
|
KI(s-1) |
0.6129 |
- |
0.5002 |
0.4271 |
0.6392 |
- |
0.5202 |
0.4933 |