ISSN 1905-7873 © 2012 - Maejo International Journal of Science ...
ISSN 1905-7873 © 2012 - Maejo International Journal of Science ...
ISSN 1905-7873 © 2012 - Maejo International Journal of Science ...
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22 <strong>Maejo</strong> Int. J. Sci. Technol. <strong>2012</strong>, 6(01), 12-27<br />
1000<br />
v ab<br />
(V)<br />
0<br />
-1000<br />
20<br />
3 3.5 4 4.5<br />
i ga<br />
(A)<br />
0<br />
-20<br />
20<br />
3 3.5 4 4.5<br />
i (A) (Rad/sec) rm T (N )<br />
i (A)<br />
ca emm m ma<br />
0<br />
-20<br />
50<br />
0<br />
500<br />
0<br />
20<br />
0<br />
-20<br />
800<br />
3 3.5 4 4.5<br />
3 3.5 4 4.5<br />
3 3.5 4 4.5<br />
3 3.5 4 4.5<br />
V dc<br />
(V)<br />
600<br />
400<br />
3 3.5 4 4.5<br />
Time(sec)<br />
Figure 7. Performance characteristics <strong>of</strong> SEIG-STATCOM (cost-effective) with induction motor load<br />
(Load conditions: T L = 0 at 3.0 sec. and T L = rated torque at 4.0 sec.)<br />
1000<br />
v ab<br />
(V)<br />
0<br />
-1000<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
20<br />
i ga<br />
(A)<br />
0<br />
-20<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
20<br />
(Rad/sec)<br />
i (A) rm T (Nm) i (A)<br />
ca emm<br />
ma<br />
0<br />
-20<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
50<br />
0<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
500<br />
0<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
50<br />
0<br />
-50<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
800<br />
V dc<br />
(V)<br />
600<br />
400<br />
2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4<br />
Time(sec)<br />
Figure 8. Performance characteristics <strong>of</strong> SEIG-STATCOM (full-rating) with induction motor load<br />
(Load conditions : T L = 0 at 3.0 sec. and T L = rated torque at 4.0 sec.)
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