The small signal stability analysis and voltage stability
analysis are to be done in the Central Travancore grid in
Kerala, a wind integrated power system. The Fig. 8 shows the
eigen value analysis of the system. In the figure all the eigen
vectors are within the unit circle which means that the system
has small signal stability. The loading point of the Central
Travancore grid was 1.4 p.u. It could be improved to 1.6 p.u,
on adding a STATCOM to the weakest bus of the system. The
weakest bus was found with the help of the P-V curve which
was plotted for finding the voltage stability of the above
system. This P-V curve is shown in the Fig.9.